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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