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Table 4 Sickness absence risk ratio estimates with interaction adjustments for the mean number of exercise times/week

From: Effects of yoga, strength training and advice on back pain: a randomized controlled trial

Mean number of exercise times/week Sickness absence RR Kundalini yoga (95% CI) Sickness absence RR Strength training (95% CI)
0.0 1.25 (.82; 1.90) 1.43 (.96; 2.13)
0.5 1.11 (.78; 1.58) 1.25 (.91; 1.72)
1.0 .99 (.73; 1.33) 1.09 (.84; 1.42)
1.5 .88 (.67; 1.15) .95 (.74; 1.23)
2.0 .78 (.60; 1.02) .83 (.62; 1.11)
2.5 .70 (.52; .94) .73 (.50; 1.04)
3.0 .62 (.44; .88) .63 (.40; .99)
3.5 .55 (.36; .84) .55 (.32; .96)
4.0 .49 (.30; .81) .48 (.25; .92)
4.5 .44 (.24; .78) .42 (.20; .90)
5.0 .39 (.20; .76) .37 (.15; .87)
  1. Sickness absence risk ratio estimate from GEE analyses, with interaction adjustments for the mean number of exercise times/week for the kundalini yoga and strength training, versus the control group at the 12-month follow-up. Abbreviations RR risk ratio estimate, CI Confidence Interval