Table 3.

Summary of results from the primary random-effects meta-analysis and the subgroup random-effects meta-analyses

Amount of studiesOR (95% CI)I2P
Primary meta-analysis120.90 (0.79–1.02)59%0.10
Subgroup meta-analysis
Study design
 Cohort studies51.02 (0.88–1.19)52%0.76
 Case–control70.81 (0.68–0.96)49%0.02
 Subgroup differences76%0.04
Type of lymphoma
 Hodgkin lymphoma30.82 (0.47–1.42)63%0.47
 Non-Hodgkin lymphoma110.92 (0.81–1.04)57%0.19
 Subgroup differences0%0.69
Physical activity domain
 Recreational80.86 (0.73–1.02)65%0.08
 Occupational60.98 (0.80–1.21)0%0.88
 Subgroup differences1.1%0.31

NOTE: Bold values indicate P < 0.05.