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Table 3 SIDAK multiple pairwise comparisons of average score of pain and physical function for the three groups at different time points of the study

From: The effects on pain, physical function, and quality of life of quadriceps strengthening exercises combined with Baduanjin qigong in older adults with knee osteoarthritis: a quasi-experimental study

Primary outcomes

BL vs. 3rd MFU

BL vs. 6th MFU

3rd MFU vs. 6th MFU

Mean difference (95% CI)

P-value

Mean difference (95% CI)

P-value

Mean difference (95% CI)

P-value

WOMAC-pain

 QSE(n = 43)

1.442(from 1.129 to 1.754)

< 0.001

1.372(from 0.988 to 1.756)

< 0.001

− 0.070(from − 0.412 to 0.272)

0.946

 BDJ(n = 41)

1.049(from 0.729 to 1.369)

< 0.001

1.293(from 0.900 to 1.686)

< 0.001

0.244(from −0.106 to 0.594)

0.257

 CE(n = 44)

2.205(from 1.896 to 2.514)

< 0.001

3.182(from 2.803 to 3.561)

< 0.001

0.977(from 0.639 to 1.315)

< 0.001

WOMAC-physical function

 QSE(n = 43)

2.163(from 1.624 to 2.702)

< 0.001

2.023(from 1.065 to 2.982)

< 0.001

−0.140(from −1.025 to 0.746)

0.974

 BDJ(n = 41)

2.439(from 1.887 to 2.991)

< 0.001

2.756(from 1.907 to 3.605)

< 0.001

0.317(from −0.394 to 1.028)

0.373

 CE(n = 44)

4.727(from 4.194 to 5.260)

< 0.001

6.545(from 5.598 to 7.493)

< 0.001

1.818(from 0.943 to 2.694)

< 0.001

  1. WOMAC Western Ontario and McMaster Universities osteoarthritis index, pain (0–20), physical function (0–68), QSE Quadriceps strengthening exercise, BDJ Baduanjin qigong, CE The combined exercise of quadriceps strengthening exercise and Baduanjin qigong, BL Baseline, MFU Month of follow-up, SD Standard deviation, CI Confidence interval; p < 0.05 was considered statistically significant after adjustment