Báo cáo nghiên cứu khoa học: "Các yếu tố gây nguy cơ của thừa cân và béo phì trong học sinh trường tiểu học trong thành phố Huế, Việt Nam" pptx

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JOURNAL OF SCIENCE, Hue University, N
0
61, 2010


EXPLORING POSTNATAL DEPRESSION IN THUA THIEN HUE PROVINCE,
CENTRAL VIETNAM
Linda Murray, Michael Dunne, Nigar Khawaja
School of Public Health,

Queensland University of Technology (QU)
Cao Ngoc Thanh
College of Medicine and Pharmacy, Hue University
SUMMARY
Introduction: Postnatal depression (PND) is an important public health issue due to its
impact on maternal wellbeing, infant development, and family cohesion. The estimated
prevalence of PND during the first 12 months post-partum ranges between10-20% worldwide.
Whilst PND used to be considered a syndrome only occurring in western countries, there is now
evidence that it occurs throughout the world, and often at higher rates in low and middle-
income countries. To date, there has been little research into PND in South East Asia and only
two community-based surveys in Vietnam, one in Ho Chi Minh City in 1999 and one in Hanoi
and Ha Nam in 2009. This study will investigate health worker attitudes about risk and
protective factors for PND among women in Thua Thien Hue province in central Vietnam.
Methodology: In 2009, 23 health professionals participated in qualitative exploratory research
of postnatal depression in Hue. This included two focus groups with 12 health professionals who
completed a concept mapping process, and in-depth interviews with another 11 health
professionals. Results: Many factors relating to postnatal depression were identified including
socio-economic status, son preference, mother’s health, infant health, social support from family

and the community, and health promoting behaviours. In-depth interviews highlighted
community knowledge and attitudes surrounding PND such as traditional confinement practices
and fear of experiencing stigma. Conclusion: The findings of this research will be used to plan
a substantial community-based quantitative survey in order to establish prevalence of PND and
surrounding social determinants in central Vietnam.

1. Introduction
Postnatal depression (PND) is a significant public health issue which not only
impacts maternal wellbeing, but also infant growth and development, and family
cohesion. Prevalence of PND is estimated to be between 10-20% worldwide, although
rates vary within and between countries. Before the 1980’s, it was assumed that PND
only occurred in western countries. However once PND began to be measured
internationally using standardised tools, it became apparent it was a genuine universal


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disorder showing similar symptoms across cultures. Emerging evidence suggests the
prevalence of PND may be higher in low and middle income countries than in high
income countries, and carry considerable social and economic consequences. However
less than 10% of low and middle income countries have data available.
Socio-cultural factors are very influential in the aetiology and progression of
perinatal mental health disorders. Social risk factors of PND identified in Hong Kong,
China, Singapore and Thailand include unwanted pregnancy, intimate partner violence,
relationships with extended family (particularly in-laws), maternal self esteem, infant
temperament and socio-economic status. Son preference is cited as an influential factor
of PND in China, Hong-Kong, Taiwan and Korea. In mainland China, mothers who
gave birth to a girl are twice as likely to suffer from PND. A study of 252 postpartum
women in Goa, India, also found that the risk of PND following disappointment about
the infant’s gender had an odds ratio of 3.3 (p = 0.002). In Vietnam, son preference has
not been studied in relation to PND. However Pham et al (2008) state that the national

reproductive health policy can create pressure to have a son within two births.
Studies of perinatal mental health have been conducted in both the north and
south of Vietnam. In a sample of 506 women in HCMC, 33% of women were found to
have PND, and 19% of participants acknowledged thinking about suicide. In the north
of Vietnam, a study of 364 postpartum women from Hanoi and Ha Nam province found
that 29.9% had a common mental disorders (CMD) and that CMD were more common
in rural areas. Other studies have found that 20% of mothers of one year olds had
anxiety or depression in Vietnam, and that between 8 and 16.9% of recorded perinatal
deaths could be attributed to suicide. There is currently no data on PND from central
Vietnam. The purpose of this research is to identify risk and protective factors that
health professionals in Thua Thien Hue, Vietnam, perceived to be related to PND in
order to plan for a larger epidemiological study of maternal mental health in the area.
2. Methodology
Methodological Approach: The theoretical approach of this research project
was community based participatory research (CBPR). CBPR aims to draw on multiple
sources of expertise when deciding what health risks matter, what causes them and what
can be done about them. In social epidemiology, CBPR is used to increase the rigor of
descriptive research through identifying social determinants of health through
collaboration with local stakeholders
Study Site: This study was conducted in Thua Thien Hue province in Central
Vietnam in collaboration with Hue University of Medicine and Pharmacy.
Participants: For the focus groups, a purposive sample of twelve maternal and
child health professionals were recruited from three commune health centres within
10km of Hue city, and one Provincial hospital. Nine midwives with 2-32 years


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experience, and three doctors with 15-18 years experience participated in 2 two-hour
sessions. Another eleven experts in maternal health and mental health such as
Obstetricians and Psychiatrists participated in in-depth interviews.

Ethics: This study has ethical approval from both Queensland University of
Technology and Hue University of Medicine and Pharmacy.
Methods: In-depth interviews lasted 40-60 minutes and were recorder on an
MP3 player with the interviewee’s permission. If the interviewer did not wish to be
recorded the researcher took detailed notes. Interviews were either conducted in English
or translated simultaneously. The interview transcripts were then analysed into themes
using NVivo 8 software.
For the focus groups, a concept mapping process developed by Trochim (1989)
was used. Trochim’s concept mapping is a structured group process which both
describes concepts as well as quantifying the strength of conceptual relationships. The
focus groups were conducted by two Vietnamese facilitators, who translated materials
into English at the end of the workshops. At the end of the concept mapping process, the
results are visually represented as concept ‘maps’ using ‘Concept Systems’ software.
Trochim concept mapping uses the following steps:
 Brainstorming: Participants were given a definition of postnatal depression
and it’s common symptoms, and asked to think of any factors they thought
might be related to it, whether positive or negative.
 Sorting: Each participant then received a packet of the statements printed on
cards, and were asked to sort them into piles ‘in a way that made sense to
them.’ The rules were that each card could only be used once, and to make
more than one pile. Once they had finished the individual sorted piles were
collected and entered into Concept Systems software for analysis.
 Rating: Each participant was then asked to rate each statement from 1 ‘least
likely’ to 5 ‘most likely’ according to the following headings: ‘likely to cause
PND’ and ‘likely to protect against PND.’ This information was also
analysed with Concept Systems software.
 Verification: Once the information was analysed, the groups then met again
to look at the concept maps and decide if they accurately reflected their
previous work.
3. Results

3.1. Brainstorming: Participants brainstormed 46 statements to include in the
sorting and rating activities. A list of the statements is outlined in figure one.
3.2. Sorting: From the sorting exercise, a concept map was produced (see figure


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two). Each of the 46 statements is located as a point on the map. Statements that were
sorted together more frequently appear closer to each other on the map and represent
similar themes than statements more distant from them. The statements fitted naturally
into eight thematic clusters, which are enclosed by the polygons on the map.
3.3. Rating: The next two maps show how the eight clusters were rated by
participants as ‘most likely to cause PND,’ and ‘most likely to protect against PND.’
The rating map depicts the relative average rating on a 5 point likert scale (where 1 =
least likely, 5 = most likely) in relation to being likely to cause PND. The number of
layers represents how strongly participants rated a statement as being likely to cause
PND. The more layers there are, the more participants rated statements in this cluster as
likely to cause PND. The layers represent a double averaging – across all participants
and all of the statements in each cluster.
Figure three clearly shows that the clusters ‘negative stressors,’ and ‘mother’s
emotions and worry’ were rated as highly likely to be risk factors for PND with average
ratings of 3.73 to 4.24. ‘Mother’s health’ and ‘baby’s health’ were also considered to be
risk factors with average ratings of 3.23 to 3.75, but were not rated as highly as the
previous two clusters. ‘Economics’ had an average rating of 2.73 to 3.23, which means
it was not considered as influential as other social and health factors in causing PND.
Figure four represents statements participants perceived as most likely to protect
against PND. Economics was moderately rated as a protective statement (average rating
of 2.72 to 3.08), although it should be noted participants put positive as well as negative
statements about economics in this category. Interestingly, ‘family aspects’ and ‘society
and friendship’ (average 3.82 to 4.91) were rated more likely to be protective than
factors explicitly categorised and labelled in focus groups as ‘protective factors.’ The

statements in the ‘protective factors’ cluster were mainly about individual health
behaviours such as exercise and rest, whereas ‘family aspects’ and ‘society and
friendship’ all describe personal relationships and connections.
3.4. Interpretation of Maps
In the second focus group, participants were shown the maps and decided if they
considered the clusters generated to be meaningful. Both groups agreed that statement
16 ‘sleeplessness because of the baby’ should be moved to the cluster ‘Mother’s Health’.
The group of 6 midwives thought that husbands needed a category of their own, apart
from other family aspect, however it was decided overall that this wouldn’t be changed.
In general, both groups thought the maps represented their ideas accurately.
3.5. In – depth interviews
In-depth interviews provided more depth to many of the themes discussed in the
focus group, including themes of son preference and also stigma about accessing mental


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health services. The quote below explains women’s reluctance to access health services:
“They don’t come to the hospital except for the serious case, the reason is they
don’t want to meet with the psychiatrist because sometimes the depression in women
makes them not want to take care of the baby and if they go to the psychiatrist, maybe
they, the psychiatrist will say they are lazy or that they don’t love the baby.”
One of the interviews provided the following vignette about a woman suffering
from possible PND in relation to son preference:
Interviewee: She has a patient, a woman who is a teacher, she had the first baby
but unfortunately she is a girl, so after delivery she calls this postnatal depression
because the woman don’t like to contact with other people, she just lies, the back of hers
to the baby and doesn’t want to eat, she didn’t want to eat and didn’t want to talk to
other people, because of the gender… Because when she was pregnant and she took an
ultrasound and the doctor said that this was a boy and the husband was very hopeful,
but after delivery the baby was a girl so the husband was a little bit disappointed and it

makes the woman feel bad.
4. Discussion
Overall, the concept mapping exercise allowed participants to identify risk and
protective factors of PND both individually and as a group. Participants naturally sorted
the statements into eight clusters, some which were previously in the literature on PND
such as maternal health, infant health, social relationships, economics and family
relationships. Interestingly, some of the statements that emerged are not previously
identified in the literature such as ‘good atmosphere,’ ‘worry about beauty and physical
appearance,’ ‘enough rest, sleeping late,’ ‘the grandparents not accepting the child and
sending it to an orphanage’ and statements regarding son preference. The fact infant
gender was mentioned in five separate statements highlights its importance. This is
congruent in other literature from Asia but is yet to be explored in - depth in. Other
statements in the ‘emotion and psychology’ cluster such as ‘physical appearance,’ ‘low
self esteem within the community,’ and ‘gender of the baby the husband didn’t want’
have also not been explored in relation to each other before.
Mother’s health, baby’s health and economics are routinely mentioned in the
literature about PND from other countries, but were not considered as important as
categories including social support. Rating social factors more highly than economics as
a risk factor for PND is also consistent with the literature on risk factors for PND in
developing countries. Vietnamese mothers have very high levels of social support, with
one study showing 85% of mothers received support from two or more sources. Strong
social support positively affects maternal coping, child nutritional status and cognitive
development. The benefits of supportive nurturing family relationships can override
even severe economic adversity in protecting against common perintatal mental


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disorders.
In-depth interviews added depth to the themes mentioned above. They also
highlighted that many women suffering mental health issues in Hue were unlikely to

seek treatment due to little knowledge about PND or fear of experiencing stigma. It is
internationally recognised that large proportions of people suffering from common
mental disorders in low and middle income countries receive no treatment due to
underuse of, and poor access to health services and stigma In a study of maternal
mental health in northern Vietnam, none of the women diagnosed with a CMD had ever
received mental health care.
Limitations of this method include the fact it requires resources that may not be
easy to attain such as proprietary software One major limitation of the method’s
accessibility is that Concept Systems is yet to be available with fonts for other
languages. Also, as this is a qualitative method, the results are not generalisable, but are
only representative of the ideas of the group that participated. Hence the results are
useful for planning further studies but not identifying social determinants at a
population level.
5. Conclusion
Overall, this exploratory research was useful in identifying health professional’s
perspectives about the social determinants likely to influence PND in Hue. The concepts
resulting from this research will be used to inform a larger quantitative epidemiological
study of social determinants of PND in Hue in 2010.

REFERENCES
1. Beck, C. T., & Driscoll, J. W. Postpartum mood and anxiety disorders: A clinician's
guide. Massachusetts: Jones and Bartlett Publishers, (2006).
2. Chien, L., Tai, C., Ko, Y., Huang, C., & Sheu, S Adherence to "doing-the-month"
practices is associated with fewer physical and depressive symptoms among postpartum
women in Taiwan. Research in Nursing & Health, 29(5), (2006), 374-383.
3. Das, J., Do, Q. T., Friedman, J., & McKenzie, D Mental health patterns and
consequences: Results from survey data in five developing countries. The World Bank
Economic Review, (2008), 1-25.
4. De Silva, M. J., Huttly, S. R., Harpham, T., & Kenward, M. G. Social capital and
mental health: A comparative analysis of four low income countries. Social Science &

Medicine, 64(1), (2007), 5-20.
5. Fisher, J. R. W., Tran, T., Buoi, L. T., Rosenthal, D., Kriitmaa, K., & Tuan, T Common


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perinatal mental disorders in women in the north of Vietnam: Community prevalence
and interaction with health care use. Bulletin of the World Health Organsation, In
Press, (2010).
6. Gupta, M. D., Zenghua, J., Bohua, X. Z. L., & Chung, B. H. W. (2003). Why is son
preference so persistent in east and south asia? A cross-country study of China, India
and the Republic of Korea. World Bank Policy Research Working Paper no.2942. The
World Bank. Retrieved 29 November 2009, from
7. Harpham, T., & Tuan, T. . From research evidence to policy: mental health care in
Vietnam. Bulletin of the World Health Organization, 84(8), (2006), 664-668.
8. Kane, M., & Trochim, W. M. K Concept Mapping for Planning and Evaluation.
Thousand Oaks: SAGE, (2007).
9. Kleinman, A Global mental health: a failure of humanity. The Lancet, 374, (9690),
(2009), 603-604
10. Wong, J., & Fisher, J The role of traditional confinement practices in determining
postpartum depression in women in Chinese cultures: A systematic review of the
English language evidence. Journal of Affective Disorders, 116(3), (2009), 161-169.
Figure One
Cluster Statements
Economics 2 Worry about losing employment (applies to professionals)
11 Lost opportunities for promotion (e.g after third child)
1 Economic difficulty
9 Loss of income post delivery
10 Sufficient financial resources
4 Less time for social activities
Family Aspects 25 Informational support from relatives and family

44 Happy/harmonious family
21 Supportive husband
22 Gender of the baby is the one they desired
Society and
Friendship
26 Support from the reproductive health program
40 Good atmosphere
43 Help of the neighbourhood
46 Support from mother’s friends
Mother’s emotions 34 Single mother


310
and worry
31 Husband very concerned about the gender of the baby
5 Gender of the baby the parents don’t want
33 Gender of the baby the mother didn’t want
39 Disappointment because the gender is different to the
ultrasound
10 Lack of confidence about their place in the community
(e.g after third child)
3 Worry about physical appearance after delivery
Negative Stressors 14 Husband isn’t loyal
38 Grandparents don’t accept the baby and send it to an
orphanage
30 Husband is rude, drinks, and goes out a lot
13 Lack of care, concern and help from relatives
35 A family member has recently died
45The family observes traditional customs the mother
doesn’t want to follow

Baby’s Health 6 Stillbirth
15 The baby has a congenital disability
18 Poor health of the baby
32 Baby difficult to nurse
17 Worry about enough milk for the baby
42 Healthy baby
24 The baby is feeding well
Mother’s Health 19 The mother has a history of mental illness
8 Obstetric complications (e.g postpartum haemorrhage)
37 Caesarean wound infection
12 Other physical disease during pregnancy and delivery
36 Pain and fatigue after delivery
7 Pain during delivery
Protective Factors 16 Sleeplessness due to the baby
28 Regular diet
29 Sufficient relaxation, wakes up late


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27 Physical activity for avoiding stress
41 Mother doesn’t smoke or drink coffee or alcohol
23 The mother has enough time to take care of the baby

Figure 2

Figure 3


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Figure 4



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JOURNAL OF SCIENCE, Hue University, N
0
61, 2010


RISK FACTORS OF OVERWEIGHT and OBESITY AMONG PRIMARY
SCHOOL PUPILS IN HUE CITY, VIETNAM
Phan Thi Bich Ngoc
College of Medicine and Pharmacy, Hue University
SUMMARY
This study was conducted to identify risks factors of overweight and obesity among
primary school pupils in Hue city using a case-control study. Firstly, a cross-sectional study was
carried out in 4158 primary school children aged from 6-10 to select a case group (267 pupils).
Then other 267 pupils with normal weight were recruited as a control group. Results: Children
who have parents who are overweight or traders or vendors had 2-3 times of the risk of
overweight or obesity than others. Sedentary children, who had a habit of eating fatty and sweet
food, eating between meals, eating fast or binge eating have a risk of being overweight or obese
which is 2- 3 times higher than others. Awareness of parents of overweight- obesity is not good.
The relationship between factors related to feeding such as weight at birth, increased maternal
weight during pregnancy, duration of breast feeding, time of supplementing food and the
overweight – obesity status of children has not been determined. Conclusion: risk factors for
childhood overweight and obesity are a sedentary lifestyle, eating habits, a family history of
overweight or obesity and parental occupation.

1. Introduction
Overweight and obesity is currently considered a global public health issue. In
2005 the WHO estimated that at least 400 million adults (9.8%) are obese, with rates
being higher among women than men. Once considered a problem only of high-income
countries, rates of overweight and obesity are rising worldwide. From 1980 to 2002,
obesity has doubled in adults and overweight prevalence has trippled in children and
adolescents. In 2003-2004, 17.1% of children and adolescents were overweight and
32.2% of adults were obese. The only remaining region of the world where obesity is
not common is sub-Sahara Africa.
In Vietnam, it was reported that the prevalence of overweight-obesity among
primary school pupils in a district of Hanoi had increased from 4.1% in 1997 to 7.9% in
2002, and in District 1, Ho Chi Minh City was 12.2% (1998). In Hai Phong City, nearly
9% of primary school pupils were overweight, and up to 6% were obese (2000). In Hue,
the rate has increased from 2.4% in 2002 to 6.4% in 2005.


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The fact that identifying risk factors of overweight and obesity for prevention
and effective intervention plays a key role in the effort of reducing incidence as well as
its consequences. The aim of this study was to identify risk factors of overweight and
obesity among primary school pupils in Hue city.
2. Methodology
2.1. The subjects were divided into 2 groups
- Overweight and obese group: includes pupils who were determined either
overweight or obese in a previous cross-sectional study based on weight/ height > +
2SD or BMI ≥ 85 percentile.
- Control group: a similar number of normal weight pupils were randomly
selected with the same age, sex, geography, ethnicity, excluding underweight.
2.2. Methodology
2.2.1. Study design: A case-control study was conducted to determine the cause-

and-effect relationship based on odd ratios.
To understand risk factors upon questionnaires
2.2.2. Results analysis: Use common statistic algorithm with the support of soft
ware such as EPI INFO (6.04), SPSS 10.5. The nutrition value of diets is based on the
Table of chemical components of Vietnamese food. Tests used include 
2
, OR.
3. Results and discussion
Factors relating to overweight – obesity
Table 3.1. Characteristics of studied population
Gender
Case group Control group
n % n %
Male
Female
169
98
63.3
36.7
169
98
63.3
36.7
Total 267 100.0 267 100.0
Total of overweight – obesity children selected at the 1
st
stage were 267
including 169 males (63,3%) and 98 females ( 36,7%)
Table 3.2. Relationship between feeding and overweight – obesity
Factors Case group Control group p

Weight at birth (grams) 3183.74  472.39 3125.49  402.71 > 0.05
Increased maternal weight
10.39  3.41 10.10  3.63 > 0.05


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during pregnancy (kilograms)
Duration of Breast feeding
(months)
16.827.41 16.275.53 > 0.05
Time of supplementing food
(months)
4.32  1.75 4.61  1.42 > 0.05
In this study, the relationship between factors related to feeding such as weight
at birth, increased maternal weight during pregnancy, duration of breast feeding, time of
supplemental food and the overweight and obesity status of children has not been
determined. (p>0,05).
Table 3.3. Relationship in weight between parental obesity and children
Overweight
(BMI ≥ 25)
Case group Control group p OR
n % n %
Father
Mother
44
18
16.5
6.7
18
7

6.7
2.6
< 0.01
< 0.05
2.73 (1.48-5.07)
2.69 (1.04-7.21)
According to Mayer J. (1995) parental obesity accounts for 80% of obese
children. If either the father or mother is obese, 40% of their children are obese. If
parents’ weight is normal, the rate is only 7%. In the study of Cao Quoc Viet, these rates
were 73%, 41% and 9%, respectively. The familial similarity in calories absorption in
general, and in carbohydrates, protein and fat absorption in particular has been
mentioned in some research.
Table 3.4. Relationship between parents’ occupation and children’s weight
Occupation
Father
p
(Test 2)

Mother
p
(Test 2)

Overweight Control Overweight Control
n % n % n % n %
Cadre
165 61.8 173 64.8
>0.05
135 50.6 150 56.2
>0.05
OR=0,88 OR=0,80

Trader
71 26.6 31 11.6
< 0.01
98 36.7 60 22.5
< 0.01
OR = 2.76 (1.7-4.5) OR=2.10 (1.41-3.12)
Manual
Laborer
31 11.6 63 23.6
<0.01
34 12.7 57 21.3 <0.01
OR=0.43 OR=0.52
Total 267 100 267 100 267 100 267 100


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The risk of overweight and obesity of children whose parents are traders was 2
times higher than others. This may be due to their busy business and high income which
consequently leads to children being given a variety of foods, snack, and sweetened
beverages. Then the children often eat between meals without parents’ control and
monitoring.

Figure 3.4. Relationships between average food consumed and overweight and obesity.
Overweight and obese children eat more oil, greasy food and sweets than the
others (figure 3.4). The caloric increase will be increased when food consumption
increases. Redundant calories (70calo) each day over a long time will be the cause of
children being overweight. Furthermore, eating a lot of flour, sugar, sweets, and meats
may be the causes of overweight and obesity because protein, lipids, and glucose may
be metabolized into fatty reserves in the body.
Table 3.5. Relationship between eating habits and overweight and obesity of Hue primary

school pupils
Factors
Overweight
group
(267)
Control group

(267)
OR
p
(Test 2)

n % n %
Like eating fatty food 153 57.3 82 30.7 3.03 (2.09 – 4.39) < 0.001
26.8

17.1

104.6

30.4

38.5

19.4

25.1

8.3

0

20

40

60

80

100

120

Average

Oil

Fat meat

sweet

Soft drink


TP group

Case

Control

317
Like eating between
meals
92 34.5 41 15.4 2,90 (1.87 – 4.5) < 0.01
Eat a lot > 3times/day 35 13.1 18 8.4 2.09 (1.1 – 3.95) < 0.05
Eat fast 62 23.2 23 8.6 3.21 (1.87 – 5.54) < 0.001
The risk to be overweight and obesity of children whose habits are to eat fatty
food, eat between meals and fast food were 3 times higher than the others.
Table 3.6: Relationships among physical activities, stationary activities, and overweight
status
Factors
Overweight group Control group
p
(t-test)
X SD X SD
Sedentary lifestyle
(minute/ day)
Reading book
Watch TV
Play game

21.02 27.02 27.58 32.98 < 0.05
84.96 32.51 54.03 42.18 < 0.000
25,14 16.21 11.31 20.09 < 0.000
Time total 141.35 81.72 101.92 78.29 < 0.000

Overweight – obesity

group
Control group OR
No action
Daily excerise
149 74
3.29
(2.26-4.80)
A sedentary lifestyle is considered as watching TV, and playing computer games.
The mean sedentary time of the overweight and obesity group is 141.35 minutes/ day,
higher than that of the control group (111.92 minutes/day) as showed in Table 3.8
(p<0.001).
Watching TV, and playing games means as stationary activities increase and
physical activity decreases and consume calories. Nowadays, a sedentary lifestyle
including watching TV has increased with the use of remote controls, whereas computer
games are getting more and more attractive and abundant. Moreover, children can
watch or play games while eating fatty and sweet foods. Another important factor is
lack of physical activity, causing an increase in caloric intake but a reduction in calorie
consumption. Excessive calories are then converted into fat and are stored in the body.
There is a shortage of playgrounds for as a result of fast urbanization. Children today
have to spend much time studying and doing homework. In addition the habit of going
to school on foot has been replaced by other means of transport such as cars, motorbikes,


318
and buses. In the past, after school, children used to help parents do housework like
taking care of siblings, sweeping, house cleaning, and cooking meals, which make them
physically active. Recently, parents tend to do housework themselves, or employ
servants rather than letting their children participate. These lifestyle changes contribute
remarkably to the risks of childhood overweight.
Table 3.7. Relationship between awareness of parents and overweight and obesity in school-

children in Hue city
Opinion about
“obesity”
Overweight group Control group
p
n % n %
Obesity is healthy 0 - 1 0,4 -
Obesity is not well for
health
218 81.7 233 87.3 > 0.05
Do not know 49 18.3 33 12.3 > 0.05
Total 267 100.0 267 100.0
Table 3.8. Correct awareness of parents about nutrition status of overweight and obesity group
Recognize nutrition status n Rate %
Normal 145 54.3
Obesity 79 29.6
Do not know 43 16.1
Total 267 100.0
Incorrect awareness of parents about overweight- obesity
There were 218/267 parents (81.7%) of the overweight and obese group of
children. They supposed that obesity is not good for health, but only 79/627 (29.6%)
know clearly about their children’s nutritional status ( table 3.10). However parents do
not want to limit their child’s eating, even though they know that their children are
overweight or obese. A common explanation given by parents was that the more their
children eat, the better health they have. Overweight children also imply that a family is
wealthy, and that children are well brought up. Most of parents did not realize that
obesity is dangerous for children. Awareness raising campaigns about overweight and
obesity and its serious consequences play a important role in solving this problem.
4.Conclusions
In this study of 4158 primary school children aged 6 – 10 in Hue city, we

319
founded that:
4.1. The overweight and obesity situation: the rate of overweight was 6.4%;
obesity was 3.1%. male (7.5%) is higher than female (5.1%) (p< 0.01), the light rate of
obesity was 74.2%; average and heavy rates of obesity were ? The highest overweight
or obesity was detected in children aged 10.
4.2. Some risk factors of overweight or obesity in school children: Family
factosr: the risk of overweight or obesity in children who have a father or mother who
are overweight and traders, was 2-3 times higher than normal. the risk of being
overweight or obesity was 2- 3 times higher than in children who have a sedentary
lifestyle and eat fatty foods, eat between meals and fast than the others. The awareness
of the parents of overweight and obese children requires improvement.

REFERENCES
1. Bộ Y tế - Viện Dinh dưỡng ,Dinh dưỡng lâm sàng, Nhà xuất bản Y Hà Nội, (2002), 59-
64, 115-141.
2. Hà Huy Khôi Thừa cân-béo phì, vấn đề y tế công cộng mới ở Việt nam, Các vấn đề dinh
dưỡng cộng đồng ở Việt Nam, Nhà xuất bản Y Hà Nội, (2006), 104-114.
3. Nguyễn Thị Lâm, Thừa cân-Béo phì, Dinh dưỡng – An toàn thực phẩm, Nhà xuất bản Y
Hà Nội, (2004), 274-282.
4. Phan Thị Bích Ngọc, Phạm Văn Lình, Đinh Thanh Huề, Đánh giá tình trạng dinh
dưỡng của học sinh tiểu học ở thành phố Huế, Tạp chí Y học thực hành, 648,649,
(2009), 186-195
5. American Heart Association, Population-Based Prevention of Obesity, Circulation 118,
(2008), 428-464.
6. Cole J. Tim, “Sampling, study size, and power”, in Barrie M. Margetts, Michael Nelson
Design Concepts in Nutritional Epidemiology, second edition, Oxford Medical
Publications, (2006), 64-86.

7. Stephen R. Daniels, Donna K. Arnett, Robert H. Eckel et al, Overweight in WHO (1991),
“Sample size determination in health studies, A practical manual, World Health
Organization Geneva, pp 1-5, 27.Children and Adolescents”, Circulation 111, (2005) -
2012.
8. Stephen R. Daniels, Marc S. Jacobson, Brian W. McCrindle, Robert H. Eckel, Brigid
McHugh Sanner, American Heart association childhood obesity Research Summit:
Executive Summary, Circulation 119 published by the American Heart Association,
(2009), e489-e517, 2114-2123.


320
9. WHO, Obesity: preventing and managing the global epidemic, WHO Technical Report
Series 894,( 2000), 46-74, 174-183.
10. WHO, Development of a WHO growth reference for school-aged children and
adolescents, Bulletin of the World Health Organization (85), (2007), 660-667.