Table 4.
Mean and standard deviation for BMI (kg/m2) according to family income at birth, and slope index of inequality (SII), among females in the different follow-ups of the 1982 birth cohort study. Pelotas, southern Brazil, 1982 to 2004–2005
| Quintiles of family income | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st | 2nd | 3rd | 4th | 5th | ||||||||
| Age (years) | Mean | sd | Mean | sd | Mean | sd | Mean | sd | Mean | sd | P | SII |
| 1 | 16·7 | 1·7 | 17·1 | 1·5 | 17·3 | 1·4 | 17·4 | 1·4 | 17·5 | 1·4 | <0·001 | 0·9 |
| 2 | 16·6 | 1·4 | 16·6 | 1·4 | 16·7 | 1·3 | 16·9 | 1·5 | 17·0 | 1·5 | <0·001 | 0·5 |
| 4 | 16·0 | 1·3 | 16·0 | 1·3 | 16·1 | 1·6 | 16·4 | 1·6 | 16·4 | 1·7 | <0·001 | 0·7 |
| 15 | 21·2 | 3·4 | 21·9 | 3·7 | 21·5 | 3·4 | 21·8 | 3·9 | 21·1 | 3·4 | 0·62 | −0·2 |
| 19 | 22·1 | 4·1 | 22·8 | 4·7 | 21·9 | 3·3 | 23·5 | 7·1 | 21·7 | 3·6 | 0·75 | −0·2 |
| 23 | 23·9 | 5·4 | 24·0 | 5·2 | 23·4 | 4·3 | 23·4 | 4·5 | 22·5 | 3·5 | <0·001 | −1·6 |