Table 3 Relative risks (RRs) and 95% CI of SCC (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
Type of physical activity | Women with SCC/Total | Age-adjusted RR (95% CI) | Multivariablea RR (95% CI) | Men with SCC/Total | Age-adjusted RR (95% CI) | Multivariablea RR (95% CI) | |
|---|---|---|---|---|---|---|---|
Recreational activity, total (hrs/wk) | (n = 665) | (n = 650) | (n = 506) | (n = 486) | |||
None | 32/222 | Reference | Reference | 33/202 | Reference | Reference | |
F ≤ 1 | M ≤ 1.5 | 18/153 | 0.88 (0.53, 1.48) | 0.92 (0.56, 1.53) | 17/105 | 0.82 (0.50, 1.36) | 0.89 (0.54, 1.46) |
F ≤ 3 | M ≤ 4 | 19/150 | 0.96 (0.57, 1.60) | 1.04 (0.62, 1.74) | 21/102 | 1.23 (0.78, 1.94) | 1.29 (0.82, 2.04) |
F > 3 | M > 4 | 21/140 | 0.87 (0.53, 1.41) | 0.85 (0.52, 1.38) | 27/97 | 1.45 (0.93, 2.25) | 1.33 (0.86, 2.05) |
p-trend | 0.647 | 0.557 | 0.053 | 0.135 | |||
Walking (hrs/wk) | |||||||
None | 40/318 | Reference | Reference | 43/304 | Reference | Reference | |
F < 1 | M < 1.2 | 17/105 | 1.30 (0.81, 2.10) | 1.36 (0.85, 2.17) | 11/68 | 0.99 (0.56, 1.74) | 1.04 (0.59, 1.82) |
F < 2.5 | M < 3.5 | 13/120 | 0.81 (0.44, 1.46) | 0.99 (0.55, 1.78) | 20/66 | 1.61 (1.06, 2.47) | 1.64 (1.07, 2.51) |
F ≥ 2.5 | M ≥ 3.5 | 20/122 | 0.98 (0.60, 1.62) | 1.06 (0.65, 1.74) | 24/68 | 1.63 (1.06, 2.50) | 1.37 (0.90, 2.08) |
p-trend | 0.734 | 0.997 | 0.026 | 0.142 | |||
Moderate activity (hrs/wk) | |||||||
None | 74/508 | Reference | Reference | 72/362 | Reference | Reference | |
F < 1.5 | M < 1.7 | 8/80 | 0.72 (0.37, 1.43) | 0.67 (0.35, 1.29) | 13/72 | 0.88 (0.52, 1.48) | 0.95 (0.58, 1.57) |
F ≥ 1.5 | M ≥ 1.7 | 8/77 | 0.79 (0.41, 1.51) | 0.66 (0.35, 1.27) | 13/72 | 0.96 (0.58, 1.60) | 1.05 (0.64, 1.70) |
p-trend | 0.389 | 0.141 | 0.859 | 0.868 | |||
Vigorous activity (hrs/wk) | |||||||
None | 85/612 | Reference | Reference | 92/442 | Reference | Reference | |
F ≤ 8 | M ≤ 12 | 5/53 | 1.49 (0.69, 3.21) | 1.30 (0.63, 2.65) | 6/64 | 1.02 (0.47, 2.21) | 1.08 (0.54, 2.18) |
p-value | 0.410 | 0.533 | 0.953 | 0.831 | |||
Recreational activity, total (MET-hr/wk) | |||||||
Sedentary | 32/222 | Reference | Reference | 33/202 | Reference | Reference | |
F ≤ 3.7 | M ≤ 6 | 19/151 | 0.98 (0.55, 1.52) | 0.96 (0.58, 1.57) | 19/100 | 0.93 (0.58, 1.50) | 1.01 (0.63, 1.61) |
F ≤10.7 | M ≤ 18 | 21/146 | 0.96 (0.58, 1.58) | 1.07 (0.64, 1.81) | 23/105 | 1.16 (0.74, 1.82) | 1.16 (0.74, 1.83) |
F > 10.7 | M > 18 | 18/146 | 0.82 (0.50, 1.37) | 0.78 (0.47, 1.30) | 23/99 | 1.41 (0.88, 2.23) | 1.31 (0.84, 2.06) |
p-trend | 0.481 | 0.318 | 0.114 | 0.208 | |||
Occupational activity | |||||||
Sedentary | 25/217 | Reference | Reference | 23/127 | Reference | Reference | |
Standing | 9/93 | 0.85 (0.55, 1.32) | 0.69 (0.46, 1.05) | 37/183 | 0.84 (0.54, 1.30) | 0.89 (0.58, 1.36) | |
Manual | 50/288 | 0.70 (0.37, 1.34) | 0.64 (0.33, 1.24) | 35/143 | 1.00 (0.68, 1.48) | 1.13 (0.76, 1.69) | |
p-value | 0.456 | 0.131 | 0.663 | 0.532 | |||