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Table 2 Descriptive information and risk ratio estimates on sickness absenteeism and sickness presenteeism

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

  Kundalini yoga (n = 46) Strength training (n = 36) Control group (n = 37)
Sickness absenteeism
Time period 1    
  Mean in days/median/SD 4.1/1.4/7.7 5.0/0.4/9.1 8.9/1.7/20.7
  0 time (%) 43.5 50.0 34.1
   ≥ 1 time (%) 56.5 50.0 65.9
Time period 2    
  Mean in days/median/SD 4.0/0.0/8.4 6.4/2.6/14.7 12.0/2.6/25.0
  0 time (%) 54.5 25.6 28.2
   ≥ 1 time (%) 45.5 74.4 71.8
Time period 3    
  Mean in days/median/SD 3.6/0.1/6.3 9.5/0.1/22.2 9.2/0.0/23.1
  0 time (%) 50.0 48.7 55.6
   ≥ 1 time (%) 50.0 51.3 44.4
  Risk ratio estimate (CI) 0.82 (0.63; 1.08) 0.95 (0.73; 1.22)  
Sickness presenteeisma
Baseline, n (%)    
  0 - 1 times 17 (34.7) 14 (26.9) 25 (49.0)
   ≥ 2 times 32 (65.3) 38 (73.1) 26 (51.0)
Follow-up 12 months, n (%)    
  0 - 1 times 24 (53.3) 13 (36.1) 18 (48.6)
   ≥ 2 times 21 (46.7) 23 (63.9) 19 (51.4)
Risk ratio estimate (CI) 0.77 (0.49; 1.21) 1.06 (0.71; 1.57)  
  1. Descriptive information and risk ratio estimate with 95% confidence intervals on the outcomes sickness absenteeism and sickness presenteeism for comparisons between the kundalini yoga and strength training, versus the control group. aNumber of times during the last 6-month period. Abbreviations SD standard deviation, CI confidence interval