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Table 3 Hip disability and Osteoarthritis Outcome Score (HOOS)

From: Prospective randomized controlled study on improving sleep quality and impact of zolpidem after total hip arthroplasty

  Control group Treatment group P value
Symptoms
 Pre-operation 19.31 ± 3.42 19.06 ± 3.23 0.635
 Post-operation    
 3 weeks 14.68 ± 3.49 10.36 ± 3.23 < 0.001
 3 months 10.31 ± 3.33 8.36 ± 3.23 < 0.001
Pain
 Pre-operation 26.43 ± 5.32 26.06 ± 5.07 0.649
 Post-operation    
 3 weeks 20.00 ± 5.37 16.06 ± 5.67 < 0.001
 3 months 13.62 ± 5.53 11.06 ± 5.07 0.0027
Activities of daily living
 Pre-operation 44.68 ± 9.31 44.43 ± 9.23 0.8648
 Post-operation    
 3 weeks 34.81 ± 8.58 25.43 ± 9.23 < 0.001
 3 months 22.56 ± 7.28 16.43 ± 9.23 < 0.001
Sport/Recreation
 Pre-operation 21.00 ± 2.38 20.75 ± 2.29 0.5002
 Post-operation    
 3 weeks 17.50 ± 2.41 14.75 ± 2.29 < 0.001
 3 months 13.93 ± 2.31 11.75 ± 2.29 < 0.001
Quality of life
 Pre-operation 12.750 ± 1.307 12.43 ± 1.28 0.1288
 Post-operation    
 3 weeks 10.31 ± 1.26 8.03 ± 1.28 < 0.001
 3 months 7.81 ± 1.43 6.83 ± 1.28 < 0.001