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Table 2 Comparison of the subscales of SF-36, PCS and MCS score before and 6 months after THA

From: Evaluation of health-related quality of life before and after total hip arthroplasty in the elderly in Iran: a prospective cohort study

Variable Before THA 6 months after THA Effect size (Cohen’s d) P value*
Subscales (Mean ± SD)
Physical performance 10.54 ± 8.5 22.83 ± 9.7 0.93 0.028
Physical role 10.3 ± 9.3 28.5 ± 12.5 1.21 0.001
Mental health 12.4 ± 28.2 33.5 ± 21.2 0.61 0.028
Vitality 25.6 ± 19.4 37.8 ± 26.8 0.28 0.059
Emotional role 42.6 ± 16.6 54.4 ± 25.7 0.32 0.061
Social role 8.6 ± 7.5 25.3 ± 12.5 0.96 0.011
Physical pain 10.03 ± 7.3 40.5 ± 13.3 1.57 0.001
General health 16.3 ± 8.1 35.5 ± 14.1 0.96 0.003
MCS 32.1 ± 18.4 37.16 ± 21.5 0.16 0.067
PCS 10.6 ± 9.88 24.1 ± 11.2 0.97 0.023
  1. MCS, mental component score; PCS, physical component score; THA, total hip arthroplasty
  2. *P value fewer than 0.05 is considered significant