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Table 2 Comparison between Yoga and control groups at 8 weeks

From: Yoga for managing knee osteoarthritis in older women: a pilot randomized controlled trial

  Control (n = 18) Yoga (n = 18) Difference  
  Baseline mean(SD) 8 weeks adjusted mean(SE) Baseline mean(SD) 8 weeks adjusted mean(SE) At 8 weeks mean(SE) p-value1
WOMAC       
Total 39.2(19.1) 39.3(3.0) 49.5(15.8) 31.0(3.0) 8.3(4.3) .06
Pain 7.7(4.2) 8.3(.67) 9.3(4.0) 5.8(.67) 2.5(.96) .01
Stiffness 4.3(2.0) 4.7(.28) 5.2(1.4) 3.4(.28) 1.3(.41) .002
Function 27.1(15.2) 26.2(2.3) 35.0(11.8) 22.0(2.3) 4.2(3.3) .21
SPPB       
Global 8.4(3.1) 9.0(.37) 9.2(2.2) 10.0(.37) −1.0(.52) .06
Repeated chair stands 2.1(1.4) 2.0(.23) 2.4(1.4) 2.8(.23) -.78(.37) .03
Balance 3.3(1.1) 3.8(.13) 3.6(.98) 3.8(.13) -.04(.19) .83
8″ Walk 3.0(1.1) 3.1(.16) 3.3(.67) 3.5(.16) -.75(.32) .16
PSQI       
PSQI Total 5.4(2.8) 6.1(.52) 6.5(4.2) 5.0(.52) 1.1(.73) .15
Sleep quality .89(.96) .90(.13) 1.1(.64) .66(.13) .24(.18) .20
Sleep latency 1.0(.91) .81(.15) 1.2(.99) 1.1(.15) -.25(.21) .25
Sleep duration .28(.46) .39(.15) .44(.71) .16(.15) .23(.21) .29
Sleep disturbance 1.4(.51) 1.5(.15) 1.7(.46) 1.4(.15) .18(.21) .41
Use sleep meds .61(1.1) .80(.19) .67(1.2) .70(.19) .10(.26) .70
Sleep efficiency .67(1.0) .60(.18) .61(1.1) .45(.18) .15(.26) .56
SF-12       
MCS 53.4(4.8) 51.7(1.2) 51.0(5.7) 49.7(1.2) 1.5(1.7) .39
PCS 33.9(4.4) 38.7(1.0) 39.5(6.2) 38.0(.98) .69(1.5) .65
Cantril ladder       
Current 7.3(1.3) 7.7(.37) 6.9(7.8) 7.5(.37) .15(.52) .78
In 5 years 6.9(2.2) 7.8(.32) 7.3(1.6) 7.2(.32) .64(.45) .16
BMI 28.9(5.8) 28.9(.16) 29.2(5.0) 28.7(.16) .21(.22) .36
  1. 1ANCOVA comparing 8 week results with 8 weeks means adjusted for baseline, adjusted mean (SE) reported. WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index; SPPB = Short Physical Performance Battery; PSQI = Pittsburgh Sleep Quality Index; SF-12 = Health related Short Form 12; PCS = physical component summary; MCS = mental component summary; Cantril Ladder (quality of life scale).