Table 3. Prevalence ratios for the association between physical activity levels at 11, 15, and 18 years of age. The 1993 Pelotas Birth Cohort, Brazil.
| Physical activity at 11 and 15 years (≥ 300 min/week) | Physical activity at 18 years (≥ 300 min/week) | ||||||
|---|---|---|---|---|---|---|---|
|
| |||||||
| Crude | Adjusted | ||||||
|
|
|
||||||
| % | PR | 95%CI | p | PR | 95%CI | p | |
| Whole sample | < 0.001 | < 0.001a | |||||
| 11(-) 15(-) | 23.2 | 1.00 | – | 1.00 | – | ||
| 11(+) 15(-) | 31.6 | 1.36 | 1.19;1.56 | 1.22 | 1.07;1.41 | ||
| 11(-) 15(+) | 39.5 | 1.70 | 1.49;1.94 | 1.35 | 1.18;1.55 | ||
| 11(+) 15(+) | 48.5 | 2.09 | 1.85;2.35 | 1.58 | 1.39;1.80 | ||
| Males | < 0.001 | < 0.001b | |||||
| 11(-) 15(-) | 35.8 | 1.00 | – | 1.00 | – | ||
| 11(+) 15(-) | 39.9 | 1.11 | 0.93;1.33 | 1.10 | 0.92;1.31 | ||
| 11(-) 15(+) | 47.3 | 1.32 | 1.13;1.55 | 1.29 | 1.10;1.52 | ||
| 11(+) 15(+) | 55.1 | 1.54 | 1.33;1.79 | 1.49 | 1.28;1.73 | ||
| Females | < 0.001 | 0.001b | |||||
| 11(-) 15(-) | 18.1 | 1.00 | 1.00 | – | |||
| 11(+) 15(-) | 24.7 | 1.36 | 1.11;1.68 | 1.40 | 1.13;1.73 | ||
| 11(-) 15(+) | 25.8 | 1.42 | 1.11;1.81 | 1.38 | 1.08;1.78 | ||
| 11(+) 15(+) | 28.0 | 1.55 | 1.18;2.02 | 1.67 | 1.28;2.19 | ||
a
Adjusted for sex, socioeconomic status, and skin color.
b
Adjusted for socioeconomic status, and skin color.
(-) Did not reach the physical activity cut-off point. (+) Reached the physical activity cut-off point.