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Table 4 A comparison of patient reported outcome measures among groups at 12-months; Model 1: GLR describing the relationship of the no AE group to the reported group and the confirmed group. Model 2: GLR describing the relationship of the no AE group to the reported and confirmed group, when constrained to assume no difference between these two groups. Group 1: No AE group, Group 2: Reported group, Group 3: Confirmed group. (WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index, EQ5D: EuroQol-5D-3 L, SAPS: Self-Administered Patient Satisfaction scale, WPAI: Work Productivity and Activity Impairment)

From: Perceived occurrence of an adverse event affects patient-reported outcomes after total hip replacement

PROMModelGroupsCo-efficient95%CIp-valueAICLRtest
WOMACModel 1:1 to 214.27(3.2, 25.3)p = 0.018.5 
  1 to 313.13(−0.68, 26.9)p = 0.06  
 Model 2:1 to (2 and 3)13.72(4.8, 22.6)p = 0.0028.490.85
EQ5DModel 1:1 to 2−0.128(− 0.25, − 0.006)p = 0.040.015 
  1 to 3−0.129(−0.34, 0.079)p = 0.22  
 Model 2:1 to (2 and 3)−0.1285(0.25, −0.008)p = 0.0360.00810.9
SAPSModel 1:1 to 2−9.926(−19.2, −0.7)p = 0.0368.11 
  1 to 3−13.5(−26.6, −0.5)p = 0.042  
 Model 2:1 to (2 and 3)−11.515(−19.4, −3.7)p = 0.0048.10.5
WPAIModel 1:1 to 2−6.805(−18.7, 5.2)p = 0.2649.05 
  1 to 31.53(−1.7, 13.7)p = 0.806  
 Model 2:1 to (2 and 3)−2.043(−11.9, 7.82)p = 0.6859.030.6