Table 2.
OR of DTC by aspects of recreational physical activity
| All subjects |
Women only |
Men only |
||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| cases (n = 1,008) | controls (n = 1,088) | OR | 95% CI | p for trend | p for trendb | cases (n = 812) | controls (n = 852) | OR | 95% CI | p for trend | p for trendb | cases (n = 196) | controls (n = 236) | OR | 95% CI | p for trend | p for trendb | |
| No physical activity | 356 | 302 | 1.0 | Ref. | 321 | 261 | 1 | Ref. | 35 | 41 | 1 | Ref. | ||||||
| Any physical activity | 652 | 786 | 0.7 | 0.6–0.9 | <0.01 | 491 | 591 | 0.7 | 0.6–1.0 | 0.01 | 161 | 195 | 0.9 | 0.5–1.5 | 0.66 | |||
| Duration of practice, years | ||||||||||||||||||
| Under 18 years | ||||||||||||||||||
| 0 | 393 | 347 | 1.0 | Ref. | 351 | 294 | 1.0 | Ref. | 42 | 52 | 1.0 | Ref. | ||||||
| 1–2 | 96 | 119 | 0.8 | 0.5–1.0 | 78 | 97 | 0.7 | 0.5–1.0 | 18 | 23 | 1.1 | 0.5–2.5 | ||||||
| 3–5 | 175 | 176 | 0.9 | 0.7–1.2 | 142 | 138 | 0.9 | 0.7–1.2 | 33 | 38 | 1.0 | 0.5–2.0 | ||||||
| 6–9 | 176 | 229 | 0.8 | 0.6–1.0 | 124 | 173 | 0.7 | 0.5–1.0 | 52 | 56 | 1.1 | 0.6–1.9 | ||||||
| ≥10 | 168 | 217 | 0.8 | 0.6–1.0 | 0.05 | 0.60 | 117 | 150 | 0.7 | 0.5–1.0 | 0.04 | 0.80 | 51 | 67 | 0.9 | 0.5–1.6 | 0.61 | 0.45 |
| 18 years and over | ||||||||||||||||||
| 0 | 706 | 698 | 1.0 | Ref. | 613 | 575 | 1.0 | Ref. | 93 | 123 | 1.0 | Ref. | ||||||
| 1 | 53 | 78 | 0.7 | 0.5–1.0 | 39 | 60 | 0.6 | 0.4–0.9 | 14 | 18 | 1.0 | 0.5–2.3 | ||||||
| 2–3 | 77 | 102 | 0.7 | 0.5–1.0 | 56 | 77 | 0.7 | 0.5–1.0 | 21 | 25 | 0.9 | 0.5–1.9 | ||||||
| 4–7 | 76 | 106 | 0.7 | 0.5–1.0 | 55 | 77 | 0.7 | 0.5–1.0 | 21 | 29 | 0.8 | 0.4–1.5 | ||||||
| ≥8 | 96 | 104 | 0.9 | 0.6–1.3 | 0.08 | 0.38 | 49 | 63 | 0.8 | 0.4–1.2 | 0.02 | 0.37 | 47 | 41 | 1.4 | 0.8–2.5 | 0.55 | 0.94 |
| Total | ||||||||||||||||||
| 0 | 356 | 302 | 1.0 | Ref. | 321 | 261 | 1.0 | Ref. | 35 | 41 | 1.0 | Ref. | ||||||
| 1–3 | 147 | 161 | 0.8 | 0.6–1.1 | 123 | 136 | 0.8 | 0.6–1.0 | 24 | 25 | 1.3 | 0.6–2.8 | ||||||
| 4–7 | 182 | 218 | 0.7 | 0.6–1.0 | 141 | 166 | 0.7 | 0.5–1.0 | 41 | 52 | 0.8 | 0.4–1.6 | ||||||
| 8–11 | 139 | 175 | 0.7 | 0.5–1.0 | 114 | 129 | 0.8 | 0.6–1.1 | 25 | 46 | 0.6 | 0.3–1.2 | ||||||
| ≥12 | 184 | 232 | 0.7 | 0.5–0.9 | 0.02 | 0.38 | 113 | 160 | 0.7 | 0.5–0.9 | 0.02 | 0.51 | 71 | 72 | 0.9 | 0.5–1.7 | 0.55 | 0.53 |
| Time per weeka, hours | ||||||||||||||||||
| Under 18 years | ||||||||||||||||||
| 0 | 393 | 347 | 1.0 | Ref. | 351 | 295 | 1.0 | Ref. | 42 | 52 | 1.0 | Ref. | ||||||
| 1 | 122 | 118 | 1.1 | 0.7–1.6 | 106 | 108 | 1.0 | 0.7–1.6 | 16 | 10 | 1.9 | 0.6–5.7 | ||||||
| 2 | 195 | 207 | 0.9 | 0.6–1.3 | 158 | 178 | 0.9 | 0.6–1.3 | 37 | 29 | 1.8 | 0.7–4.5 | ||||||
| 3–4 | 152 | 218 | 0.7 | 0.5–1.0 | 111 | 153 | 0.7 | 0.4–1.1 | 41 | 65 | 0.8 | 0.3–2.0 | ||||||
| ≥5 | 146 | 198 | 0.7 | 0.5–1.1 | <0.01 | <0.01 | 86 | 118 | 0.7 | 0.4–1.1 | 0.02 | 0.01 | 60 | 80 | 1.0 | 0.4–2.5 | 0.30 | 0.06 |
| 18 year and over | ||||||||||||||||||
| 0 | 706 | 698 | 1.0 | Ref. | 613 | 575 | 1.0 | Ref. | 93 | 123 | 1.0 | Ref. | ||||||
| 1 | 49 | 54 | 0.7 | 0.4–1.2 | 42 | 48 | 0.7 | 0.4–1.3 | 7 | 6 | 0.9 | 0.2–3.6 | ||||||
| 2 | 86 | 999 | 0.7 | 0.4–1.1 | 59 | 80 | 0.6 | 0.4–1.1 | 27 | 19 | 1.1 | 0.4–2.9 | ||||||
| 3–5 | 91 | 140 | 0.5 | 0.3–0.8 | 57 | 96 | 0.5 | 0.3–0.8 | 34 | 44 | 0.6 | 0.2–1.6 | ||||||
| ≥6 | 76 | 97 | 0.5 | 0.3–0.9 | 0.01 | 0.03 | 41 | 53 | 0.6 | 0.3–1.1 | 0.03 | 0.06 | 35 | 44 | 0.6 | 0.2–1.7 | 0.20 | 0.27 |
| Total | ||||||||||||||||||
| 0 | 356 | 302 | 1.0 | Ref. | 321 | 261 | 1.0 | Ref. | 35 | 41 | 1.0 | Ref. | ||||||
| 1 | 132 | 120 | 1.1 | 0.7–1.5 | 114 | 112 | 1.0 | 0.7–1.5 | 17 | 8 | 2.4 | 0.8–7.5 | ||||||
| 2 | 198 | 225 | 0.8 | 0.6–1.1 | 158 | 189 | 0.8 | 0.5–1.1 | 41 | 36 | 1.3 | 0.5–3.2 | ||||||
| 3–4 | 163 | 225 | 0.7 | 0.5–1.0 | 120 | 161 | 0.7 | 0.4–1.0 | 43 | 64 | 0.8 | 0.3–1.9 | ||||||
| ≥5 | 159 | 216 | 0.6 | 0.4–1.0 | <0.01 | <0.01 | 99 | 129 | 0.7 | 0.4–1.0 | 0.01 | 0.01 | 60 | 87 | 0.8 | 0.3–2.0 | 0.10 | 0.02 |
OR were stratified by sex, region or country, and age and adjusted for educational level, ethnicity, smoking status, BMI, height, and number of pregnancies for women. Ref. = Reference values.
OR were also adjusted for the number of years of physical activity practice.
When excluding subjects who did not report any recreational physical activity.