Table 2.
Mean values of BMI at different ages and of BMI changes by categories of current BMI among controls
| Current BMI (kg/m2) | |||||
|---|---|---|---|---|---|
| <25 | 25-30 | ≥30 | p a | Pearson rb | |
| (n = 428) | (n = 245) | (n = 141) | |||
| Mean current BMI (kg/m2) (sd) | 22.0 (1.9) | 27.2 (1.4) | 34.2 (4.2) | <10-4 | 1.00 |
| Mean BMI at age 50 (kg/m2) (sd) | 21.4 (2.3) | 24.7 (2.6) | 29.8 (4.6) | <10-4 | 0.79 |
| Mean BMI at age 20 (kg/m2) (sd) | 20.1 (2.3) | 20.9 (2.6) | 22.5 (3.2) | <10-4 | 0.32 |
| Mean BMI change from age 20 to current age (kg/m2) (sd) | 1.9 (2.8) | 6.3 (2.9) | 11.8 (5.1) | <10-4 | 0.86 |
| Mean BMI change from age 20 to 40 (kg/m2) (sd) | 0.6 (2.4) | 2.3 (2.3) | 4.6 (4.7) | <10-4 | 0.54 |
| Mean BMI change from age 40 to 50 (kg/m2) (sd) | 0.6 (1.7) | 1.5 (2.2) | 2.9 (4.4) | <10-4 | 0.32 |
| Mean BMI change from age 50 to current age (kg/m2) (sd) | 0.6 (2.0) | 2.5 (2.5) | 4.5 (4.7) | <10-4 | 0.55 |
a P-value of ANOVA
bPearson correlation coefficient with current BMI