Table 3.
Adjusted analyses of changes of physical activity and lung function parameters in female subjects. Pelotas 1993 Birth Cohort
| Variable | FEV1 (% predicted) |
FVC (% predicted) |
FEV6 (L) |
PEF (L/s) |
||||
|---|---|---|---|---|---|---|---|---|
| β (95% CI) | p value | β (95% CI) | p value | β (95% CI) | p value | β (95% CI) | p value | |
| Changes of total PA (11–15 years) | ||||||||
| Inactive–inactive | Reference | Reference | Reference | Reference | ||||
| Inactive–active | −.875 (−2.505, .755) | .293 | −1.033 (−2.791, .725) | .249 | −.033 (−.084, .017) | .198 | .040 (−.082, .162) | .519 |
| Active–inactive | −.117 (−1.620, 1.386) | .879 | −.102 (−1.723, 1.518) | .901 | −.012 (−.058, .035) | .622 | .002 (−.111, .114) | .973 |
| Active–active | 1.066 (−.664, 2.797) | .227 | 1.362 (−.504, 3.228) | .152 | .041 (−.012, .095) | .131 | .069 (−.061, .198) | .299 |
| Changes of leisure-time PA (11–15 years) | ||||||||
| Inactive–inactive | Reference | Reference | Reference | Reference | ||||
| Inactive–active | .960 (−.748, 2.669) | .270 | .754 (−1.087, 2.595) | .422 | .034 (−.019, .087) | .215 | .178 (.051, .306) | .006 |
| Active–inactive | .704 (−.823, 2.231) | .366 | .435 (−1.210, 2.080) | .604 | .018 (−.029, .065) | .457 | .043 (−.072, .157) | .465 |
| Active–active | 2.172 (−.202, 4.546) | .073 | 3.573 (1.015, 6.130) | .006 | .095 (.021, .168) | .012 | .092 (−.086, .269) | .310 |
Adjusted for family income at birth, maternal schooling at birth, birth weight, smoking during pregnancy, mother's height at birth, adolescent height at 15 years, wheezing in past year, body mass index, allergy status, and asthma medication. Values in bold indicate statistically significant regression coefficients (p <.05).