Table 3.

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

Diffuse large B-cell (n = 202)Follicular (n = 188)Other B-cell (n = 268)T-cell (n = 70)
Lifetime physical activityAORa (95% CI)AORa (95% CI)AORa (95% CI)AORa (95% CI)
Total
 0–35.9 MET-hours/week1.001.001.001.00
 36–58.9 MET-hours/week0.70 (0.44–1.11)0.93 (0.59–1.49)0.87 (0.58–1.30)0.65 (0.31–1.35)
 59–84.9 MET-hours/week0.80 (0.51–1.28)0.73 (0.44–1.19)0.81 (0.54–1.23)0.58 (0.27–1.24)
 85+ MET-hours/week1.22 (0.79–1.88)1.26 (0.80–1.99)1.04 (0.69–1.57)1.19 (0.61–2.32)
PTrend0.2560.4500.8830.648
Moderate intensity
 0–18.9 MET-hours/week1.001.001.001.00
 19–35.9 MET-hours/week0.70 (0.44–1.11)0.89 (0.55–1.44)1.12 (0.75–1.69)0.72 (0.36–1.43)
 36–55.9 MET-hours/week0.97 (0.62–1.53)0.96 (0.59–1.55)0.82 (0.53–1.29)0.54 (0.24–1.20)
 56+ MET-hours/week1.00 (0.62–1.61)1.08 (0.66–1.77)1.48 (0.96–2.28)0.91 (0.44–1.86)
PTrend0.7040.6970.1780.635
Vigorous intensity
 0–4.9 MET-hours/week1.001.001.001.00
 5–18.9 MET-hours/week0.58 (0.36–0.93)0.59 (0.37–0.93)0.78 (0.52–1.15)0.88 (0.45–1.72)
 19–36.4 MET-hours/week0.72 (0.45–1.15)0.64 (0.40–1.02)0.77 (0.51–1.16)0.48 (0.22–1.06)
 36.5+ MET-hours/week0.94 (0.60–1.49)0.71 (0.44–1.14)0.59 (0.38–0.92)0.80 (0.39–1.67)
PTrend0.8590.2070.0280.323

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.