Table 4 Relative risks (RRs) and 95% CI of SCC counts (1992-2007) according to type of physical activity, stratified by sex
From: Prospective study of physical activity and risk of squamous cell carcinoma of the skin
Women | Men | ||||||
|---|---|---|---|---|---|---|---|
Type of physical activity | Tumour count | Age-adjusted RR (95% CI) | Multivariablea RR (95% CI) | Tumour count | Age-adjusted RR (95% CI) | Multivariablea RR (95% CI) | |
Recreational activity, total (hrs/wk) | (n = 665) | (n = 650) | (n = 506) | (n = 486) | |||
None | 62 | Reference | Reference | 59 | Reference | Reference | |
F ≤ 1 | M ≤ 1.5 | 27 | 0.79 (0.42, 1.49) | 0.89 (0.48, 1.65) | 57 | 1.09 (0.58, 2.07) | 1.03 (0.55, 1.94) |
F ≤ 3 | M ≤ 4 | 29 | 0.91 (0.48, 1.70) | 0.97 (0.52, 1.79) | 41 | 1.18 (0.60, 2.32) | 1.20 (0.61, 2.35) |
F > 3 | M > 4 | 31 | 0.75 (0.41, 1.39) | 0.76 (0.42, 1.38) | 62 | 1.77 (0.93, 3.37) | 1.71 (0.91, 3.21) |
p-trend | 0.454 | 0.409 | 0.073 | 0.076 | |||
Walking (hrs/wk) | |||||||
None | 74 | Reference | Reference | 78 | Reference | Reference | |
F < 1 | M < 1.2 | 28 | 1.21 (0.64, 2.26) | 1.41 (0.76, 2.62) | 30 | 1.06 (0.52, 2.20) | 1.40 (0.68, 2.89) |
F < 2.5 | M < 3.5 | 14 | 0.60 (0.29, 1.25) | 0.72 (0.35, 1.48) | 52 | 1.99 (1.02, 3.90) | 1.93 (0.99, 3.76) |
F ≥ 2.5 | M ≥ 3.5 | 33 | 1.06 (0.59, 1.90) | 1.12 (0.63, 2.01) | 59 | 1.99 (1.04, 3.81) | 1.59 (0.85, 2.98) |
p-trend | 0.945 | 0.921 | 0.027 | 0.149 | |||
Moderate activity1 (hrs/wk) | |||||||
None | 121 | Reference | Reference | 157 | Reference | Reference | |
F < 1.5 | M < 1.7 | 17 | 1.00 (0.50, 2.02) | 0.83 (0.42, 1.65) | 33 | 1.18 (0.59, 2.38) | 1.00 (0.52, 1.92) |
F ≥ 1.5 | M ≥ 1.7 | 11 | 0.66 (0.29, 1.50) | 0.60 (0.27, 1.34) | 29 | 0.95 (0.46, 1.96) | 1.22 (0.59, 2.51) |
p-trend | 0.325 | 0.192 | 0.912 | 0.599 | |||
Vigorous activity2 (hrs/wk) | |||||||
None | 144 | Reference | Reference | 211 | Reference | Reference | |
F ≤ 8 | M ≤ 12 | 5 | 1.03 (0.32, 3.27) | 0.90 (0.29, 2.85) | 8 | 0.78 (0.29, 2.09) | 0.73 (0.27, 1.96) |
p-value | 0.961 | 0.861 | 0.626 | 0.534 | |||
Recreational activity, total (MET-hr/wk) | |||||||
Sedentary | 62 | Reference | Reference | Reference | Reference | ||
F ≤ 3.7 | M ≤ 6 | 28 | 0.81 (0.43, 1.51) | 0.91 (0.49 1.68) | 59 | 1.05 (0.55, 2.02) | 1.02 (0.54, 1.94) |
F ≤ 10.7 | M ≤ 18 | 31 | 0.89 (0.48, 1.65) | 0.98 (0.53, 1.82) | 54 | 1.37 (0.72, 2.60) | 1.35 (0.72, 2.53) |
F > 10.7 | M > 18 | 28 | 0.74 (0.40, 1.39) | 0.73 (0.40, 1.33) | 57 | 1.64 (0.83, 3.23) | 1.60 (0.83, 3.09) |
p-trend | 0.438 | 0.320 | 49 | 0.125 | 0.134 | ||
Occupational activity | |||||||
Sedentary | 35 | Reference | Reference | Reference | Reference | ||
Standing | 11 | 0.72 (0.42, 1.23) | 0.53 (0.32, 0.91) | 52 | 0.89 (0.49, 1.61) | 0.92 (0.51, 1.65) | |
Manual | 96 | 0.46 (0.22, 1.10) | 0.48 (0.22, 1.07) | 72 | 0.89 (0.51, 1.53) | 0.90 (0.53, 1.53) | |
p-value | 0.155 | 0.027 | 84 | 0.891 | 0.925 | ||