Time (min) | Total | No. with LBP | % LBP | Odds ratio* | (95% CI) |
---|---|---|---|---|---|
*ORs adjusted for age and gender in a logistic regression model. | |||||
†Sports included: football, cricket, basketball, swimming, hockey, tennis, badminton, squash, field sports, dancing, cross country running, rounders, gymnastics, rugby, horse riding, roller blading, mountain biking. | |||||
≤121 | 456 | 109 | 23.9 | 1.0 | referent |
121–240 | 451 | 102 | 22.6 | 1.1 | (0.7 to 1.4) |
>240 | 469 | 119 | 25.4 | 1.4 | (1.02 to 1.9) |