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Table 3 Estimated prevalence of overweight by area, sex and age sub-cohort during the follow-up from 2013 to 2016

From: Prevalence and incidence of overweight and obesity among Vietnamese preschool children: a longitudinal cohort study

  Age sub-cohort Number of children Baseline
%
95% CI
One year older
%
95% CI
Three years older
%
95% CI
Difference
(2016–2013)
All children   2602 9.1
8.0–10.2
11.0
9.8–12.2
16.7
15.3–18.2
7.6b***
Urban total   1311 13.3a***
11.5–15.2
17.4a***
15.3–19.4
25.6a***
23.2–27.9
12.3b***
Urban boys 3 years 169 7.1
3.2–11.0
10.1
5.5–14.6
22.5
16.1–28.8
15.4b***
4 years 242 12.0
7.9–16.1
16.5
11.8–21.2
23.6
18.2–28.9
11.6b***
5 years 232 21.6
16.2–26.9
19.8
14.7–25.0
32.8
26.7–38.8
11.2b**
6 years 56 17.9
7.5–28.2
21.4
10.3–32.5
16.1
6.1–26.0
−1.8
Urban girls 3 years 140 12.1
6.7–17.6
17.9
11.4–24.3
32.1
24.3–40.0
20.0b***
4 years 197 9.6
5.5–13.8
19.3
13.7–24.8
28.4
22.1–34.8
18.8b***
5 years 228 14.5
9.9–19.1
19.3
14.1–24.5
18.9
13.7–24.0
4.4
6 years 47 10.6
1.5–19.8
12.8
2.9–22.7
23.4
10.8–36.0
12.8
Rural total   1291 4.8
3.6–6.0
4.5
3.4–5.6
7.7
6.3–9.2
2.9b**
Rural boys 3 years 245 4.5
1.9–7.1
6.1
3.1–9.1
11.4
7.4–15.4
6.9b**
4 years 219 3.2
0.8–5.5
5.0
2.1–7.9
7.3
3.8–10.8
4.1b*
5 years 204 6.9
3.4–10.4
5.4
2.3–8.5
9.3
5.3–13.3
2.4
6 years 24 0.0
0.0–14.2
0.0
0.0–14.2
4.2
0.0–21.1
4.2
Rural girls 3 years 191 4.2
1.3–7.1
4.2
1.3–7.1
5.2
2.0–8.4
1.0
4 years 196 4.6
1.6–7.5
2.6
0.3–4.8
6.6
3.1–10.1
2.0
5 years 193 6.2
2.8–9.7
4.1
1.3–7.0
6.2
2.8–9.7
0.0
6 years 19 5.3
0.1–26.0
0.0
0.0–17.6
5.3
0.1–26.0
0.0
  1. a Urban vs. rural
  2. b 2016 vs. 2013
  3. *p < 0.05
  4. **p < 0.01
  5. ***p < 0.001