Grade 1 activity (probably strengthen/maintain quadriceps) exposure (%) for both time periods split by case/control status and sex
| No of activities | Time period 1 (5–14 years previous) | Time period 2 (15–24 years previous) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number (%) of cases | Number (%) of controls | Number (%) of cases | Number (%) of controls | ||||||||
| Male | Female | Male | Female | Male | Female | Male | Female | ||||
| 0 | 50 (75.8) | 112 (74.7) | 192 (72.7) | 475 (79.2) | 39 (59.1) | 100 (66.7) | 145 (54.9) | 425 (70.8) | |||
| 1 | 8 (12.1) | 22 (14.7) | 47 (17.8) | 70 (11.7) | 14 (21.2) | 31 (20.7) | 72 (27.3) | 103 (17.2) | |||
| 2 | 5 (7.6) | 4 (2.7) | 11 (4.2) | 16 (2.7) | 5 (7.6) | 8 (5.3) | 23 (8.7) | 27 (4.5) | |||
| ⩾3 | 3 (4.5) | 1 (0.7) | 11 (4.2) | 5 (0.8) | 8 (12.0) | 0 (0.0) | 21 (8.0) | 11 (1.9) | |||
| Missing | 0 (0.0) | 11 (7.3) | 3 (1.1) | 34 (5.7) | 0 (0.0) | 11 (7.3) | 3 (1.1) | 34 (5.7) | |||