Table 3.
Change in obesity prevalence (BMI ≥ 30 kg/m2) in 761 low- to middle-income Chilean women of reproductive age, 2007–2010
| Baseline | Follow-up | Change | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| % | n | 95 % CI | % | n | 95 % CI | % | n | 9 % CI | P† | |
| Age | 0·176 | |||||||||
| 18–29 years (n 321) | 16·8 | 54 | 12·7, 20·9 | 24·0 | 77 | 19·3, 28·7 | 7·6 | 23 | 4·7, 10·5 | |
| ≥30 years (n 439) | 32·6 | 143 | 28·2, 37·0 | 37·8 | 166 | 33·3, 42·3 | 5·2 | 23 | 3·1, 7·3 | |
| Education | 0·009 | |||||||||
| <12 years (n 277) | 28·5 | 79 | 23·2, 33·9 | 37·5 | 104 | 31·8, 43·3 | 9·0 | 25 | 5·6, 12·4 | |
| ≥12 years (n 484) | 24·4 | 118 | 20·5, 28·2 | 28·7 | 139 | 24·7, 32·8 | 4·3 | 21 | 2·5, 6·1 | |
| Baseline nutritional status | <0·001 | |||||||||
| Normal (n 297) | 0·0 | 0 | 0·0, 0·0 | 0·7 | 2 | −0·3, 1·6 | 0·7 | 2 | −0·3, 1·6 | |
| Overweight (n 267) | 0·0 | 0 | 0·0, 0·0 | 24·0 | 64 | 18·8, 29·1 | 24·0 | 64 | 18·8, 29·1 | |
| Obese (n 197) | 100·0 | 197 | 100·0, 100·0 | 89·9 | 177 | 85·6, 94·1 | −10·2 | 20 | −5·9, −14·4 | |
| Baseline parity (number of children) | 0·568 | |||||||||
| 1 child (n 241) | 18·3 | 44 | 13·3, 23·2 | 24·5 | 59 | 19·0, 29·9 | 6·2 | 15 | 3·2, 9·2 | |
| 2 children (n 267) | 30·0 | 80 | 24·4, 35·5 | 34·5 | 92 | 28·7, 40·2 | 4·5 | 12 | 2·0, 7·0 | |
| ≥3 children (n 253) | 28·9 | 73 | 23·2, 34·5 | 36·4 | 92 | 30·4, 42·3 | 7·5 | 19 | 4·3, 10·7 | |
| Change in parity during follow-up (number of childbirths) | 0·032 | |||||||||
| 0 childbirths (n 553) | 27·1 | 150 | 23·4, 30·8 | 33·1 | 183 | 29·2, 37·0 | 6·0 | 33 | 3·4, 7·9 | |
| ≥1 childbirths (n 112) | 21·4 | 24 | 13·7, 29·1 | 33·0 | 37 | 24·2, 41·9 | 11·6 | 13 | 5·7, 17·5 | |
†P value for proportion comparison of change in obesity prevalence from baseline to follow-up (χ 2 test).