Research Article
Prevalence and Predictors of Obesity among 7- to 17-Year-Old Schoolchildren in Urban Arusha, Tanzania
Table 5
Prevalence of overweight and obesity by children sociodemographic characteristics based on univariate logistic regression.
| Variables | Overall | Normal | Obese | Overweight | Underweight | value | OR and 95% CI | n | % | n | % | n | % | n | % | n | % |
| Child sex | | | | | | | | | | | | | Girls | 260 | 100 | 164 | 63.1 | 38 | 14.6 | 19 | 7.3 | 39 | 15 | 0.021 | 2.06, 1.11–3.82 | Boys | 191 | 100 | 133 | 69.6 | 19 | 9.9 | 4 | 2 | 35 | 18.3 | | |
| Age groups | | | | | | | | | | | | | Below age 10 | 39 | 100 | 30 | 76.9 | 5 | 12.8 | 3 | 7.7 | 1 | 2.6 | 0.635 | 0.82, 0.36–1.85 | Above age 10 | 412 | 100 | 267 | 64.8 | 52 | 12.6 | 20 | 4.9 | 73 | 17.7 | | |
| Activeness | | | | | | | | | | | | | Involved in sports >4 days/week | 14 | 100 | 9 | 64.3 | 1 | 7.1 | 2 | 14.3 | 2 | 14.3 | 0.912 | 1.09, 0.22–5.18 | Involved in sports 2–4 days/week | 125 | 100 | 81 | 64.8 | 15 | 12 | 5 | 4 | 24 | 19.2 | 0.599 | 0.76, 0.27–2.10 | Involved in sports <2 days/week | 166 | 100 | 106 | 63.8 | 26 | 15.7 | 7 | 4.2 | 27 | 16.3 | 0.987 | 0.99, 0.37–2.62 | Did not involve in any sports | 30 | 100 | 18 | 60 | 4 | 13.3 | 2 | 6.7 | 6 | 20 | | |
| Sleeping time | | | | | | | | | | | | | 10:00 pm and 11:00 pm (late) | 117 | 100 | 77 | 65.8 | 18 | 15.4 | 6 | 5.1 | 16 | 13.7 | 0.067 | 1.81, 0.95–3.47 | 8:00 pm and 10:00 pm (Normal) | 169 | 100 | 113 | 66.9 | 16 | 9.5 | 5 | 2.9 | 35 | 20.7 | | | 8:00 pm and 12:00 pm (random) | 45 | 100 | 21 | 46.7 | 12 | 26.7 | 4 | 8.8 | 8 | 17.8 | 0.000 | 3.88, 1.80–8.35 | 11:00 pm and 12:00 pm (too late) | 4 | 100 | 3 | 75 | 0 | 0 | 1 | 25 | 0 | 0 | 0.468 | 2.34, 0.11–19.32 |
| Wake-up timing | | | | | | | | | | | | | 5:00 am and 6:00 am (early) | 263 | 100 | 167 | 63.5 | 36 | 13.7 | 14 | 5.3 | 46 | 17.5 | | | 6:00 am to 7:00 am (late early) | 4 | 100 | 3 | 75 | 0 | 0 | 0 | 0 | 1 | 25 | 0.985 | 0.04, 0.13–1.18 | 7:00 am and 8:00 am (late) | 42 | 100 | 30 | 71.4 | 4 | 9.5 | 1 | 2.4 | 7 | 16.7 | 0.144 | 0.00, 0.00–1.22 | 5:00 am to 8:00 am (randomly) | 26 | 100 | 14 | 53.8 | 7 | 26.9 | 1 | 3.8 | 4 | 15.4 | 0.159 | 1.89, 0.77–4.60 |
| Transport | | | | | | | | | | | | | On foot | 236 | 100 | 149 | 63.1 | 30 | 12.7 | 12 | 5.1 | 45 | 19.1 | | | By bus/motor bike | 99 | 100 | 65 | 65.7 | 16 | 16.2 | 4 | 4 | 14 | 14.1 | 0.605 | 1.16, 0.64–2.11 |
| Sedentary | | | | | | | | | | | | | Spent >3 hrs in TV (high level) | 53 | 100 | 35 | 66 | 6 | 11.3 | 2 | 3.8 | 10 | 18.9 | | | Spent2-3 hrs in TV (moderate level) | 116 | 100 | 71 | 7.1 | 18 | 15.5 | 6 | 5.1 | 21 | 18.1 | 0.573 | 1.28, 0.55–3.28 | Spent <2 hrs in TV (low level) | 118 | 100 | 80 | 67.8 | 16 | 13.6 | 6 | 5 | 16 | 13.6 | 0.391 | 1.46, 0.61–3.52 | Did house chores, no TV (non) | 48 | 100 | 28 | 58.3 | 6 | 12.5 | 2 | 4.2 | 12 | 25 | 0.829 | 1.12, 0.38–3.27 |
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Reference groups. OR = odds ratio and CI = confidential intervals. |