Table 2.

Associations between lifetime total, moderate-intensity, and vigorous-intensity physical activity and the risk of NHL in a case–control study conducted in British Columbia, Canada, 2000–2004

Controls (n = 818)Cases (n = 749)All participantsMalesFemales
Lifetime physical activityn (%)n (%)AORa (95% CI)AORa (95% CI)AORa (95% CI)
Total
 0–35.9 MET-hours/week205 (25.1)208 (27.7)1.001.001.00
 36–58.9 MET-hours/week208 (25.4)165 (22.0)0.79 (0.59–1.06)0.87 (0.60–1.26)0.66 (0.41–1.05)
 59–84.9 MET-hours/week208 (25.4)154 (20.6)0.73 (0.54–0.99)0.75 (0.50–1.11)0.64 (0.40–1.03)
 85+ MET-hours/week197 (24.1)222 (29.6)1.16 (0.87–1.55)1.14 (0.78–1.68)1.07 (0.68–1.68)
PTrend0.3320.6610.591
Moderate intensity
 0–18.9 MET-hours/week209 (25.6)205 (27.4)1.001.001.00
 19–35.9 MET-hours/week201 (24.6)172 (23.0)0.86 (0.64–1.15)0.79 (0.55–1.12)1.02 (0.60–1.75)
 36–55.9 MET-hours/week202 (24.7)163 (21.8)0.86 (0.63–1.17)0.90 (0.61–1.34)0.77 (0.46–1.27)
 56+ MET-hours/week206 (25.2)209 (27.9)1.15 (0.84–1.57)1.06 (0.68–1.65)1.14 (0.71–1.83)
PTrend0.3750.8070.062
Vigorous intensity
 0–4.9 MET-hours/week199 (24.3)220 (29.4)1.001.001.00
 5–18.9 MET-hours/week212 (25.9)177 (23.6)0.69 (0.52–0.93)0.58 (0.38–0.89)0.79 (0.52–1.18)
 19–36.4 MET-hours/week204 (24.9)165 (22.0)0.68 (0.50–0.92)0.51 (0.33–0.78)0.99 (0.64–1.53)
 36.5+ MET-hours/week203 (24.8)187 (25.0)0.75 (0.55–1.01)0.71 (0.47–1.09)0.62 (0.38–1.01)
PTrend0.0720.2280.144

Abbreviation: AOR, adjusted odds ratio.

  • aAdjusted for the frequency matching variables (age group, sex, and residential location) and ethnicity. Moderate-intensity and vigorous-intensity physical activity are mutually adjusted.