Table 3.
Mean and standard deviation for BMI (kg/m2) according to family income at birth, and slope index of inequality (SII), among males in the different follow-ups of the 1982 birth cohort study. Pelotas, southern Brazil, 1982 to 2004–2005
| Quintile of family income | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1st | 2nd | 3rd | 4th | 5th | ||||||||
| Age (years) | Mean | sd | Mean | sd | Mean | sd | Mean | sd | Mean | sd | P | SII |
| 1 | 17·4 | 1·8 | 17·8 | 1·7 | 17·5 | 1·6 | 18·1 | 1·5 | 18·0 | 1·4 | 0·002 | 0·7 |
| 2 | 17·0 | 1·5 | 17·0 | 1·4 | 17·1 | 1·5 | 17·3 | 1·4 | 17·3 | 1·3 | <0·001 | 0·4 |
| 4 | 16·4 | 1·2 | 16·4 | 1·4 | 16·2 | 1·4 | 16·4 | 1·5 | 16·6 | 1·7 | 0·02 | 0·3 |
| 15 | 19·9 | 2·5 | 21·0 | 3·3 | 20·7 | 3·7 | 20·8 | 4·1 | 21·4 | 3·7 | 0·02 | 1·3 |
| 18 | 21·8 | 3·1 | 22·2 | 3·4 | 22·0 | 3·6 | 22·6 | 4·1 | 23·0 | 4·2 | <0·001 | 1·4 |
| 23 | 23·2 | 3·8 | 23·6 | 3·6 | 23·5 | 4·1 | 24·3 | 4·6 | 24·4 | 4·1 | <0·001 | 1·5 |