Table 2

Distribution of principal measures of (weekly) exposure for cases and controls, with ORs and 95% CIs

Cases (%) (n=146)Controls (%) (n=129)OR (95% CI)
*Based on 121 cases, 113 controls; excludes subjects with no measurable distance travelled (only play use of the bike reported).
†Based on 94 cases, 82 controls; excludes subjects with no measurable distance travelled on sidewalks/footpaths.
Total time (min/week)
    0–604143
    61–18030300.93 (0.54 to 1.6)
    > 18029291.4 (0.74 to 2.5)
Total distance* (km/week)
    0–431351.0
    4–1236321.3 (0.69 to 2.4)
    > 1232331.1 (0.59 to 2.1)
Total distance on sidewalks† (km/week)
    0–236481.0
    3–528281.3 (0.63 to 2.7)
    >536242.0 (0.95 to 4.0)