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Table 3 Baseline characteristics of responders vs non-responders (n = 105)

From: Accuracy of injection and short-term pain relief following intra-articular corticosteroid injection in knee osteoarthritis – an observational study

  3 weeks (n = 104) 9 weeks (n = 94)
Characteristics Responder (n = 63) Non-responder (n = 41) P Responders (n = 43) Non-Responder (n = 51) P
Age [years] [mean (SD)] 64.4(10.6) 61.8(11.9) 0.258 64.1(11) 64.5(11) 0.890
Female [n (%)] 42 (67%) 19 (46%) 0.045 31 (72%) 28 (55%) 0.093
BMI [mean(SD)] 31.3(5.4) 30.0(5.8) 0.265 30.9(4.8) 30.4(5.8) 0.658
Previous injection [n (%)] 33 (52%) 26 (63%) 0.314 20 (47%) 36 (71%) 0.021
Baseline Pain [mean (SD)] 256(87) 279(107) 0.240 243(91) 282(99) 0.057
US effusion depth [mm] [mean (SD)] 3.57(2.1) 4.07(2.6) 0.280 3.29(1.9) 4.14(2.59) 0.080
PD grade [median (IQR)] 0(0,1) 0(0,1) 0.790 0(0,1) 0(0,1) 0.376
Osteophyte grade [median (IQR)] 2(1,3) 2(1,3) 0.870 2(1,2) 2(1,3) 0.540
JSN grade [median (IQR)] 2(1,2) 2(1,2) 0.796 2(1,2) 2(1,2) 0.461
hsCRP [mg/L] [median (IQR)] 3.5(1.5,6.8) 4.6(2.2,8.6) 0.147 3.0(1.5,5.7) 4.5(1.7,8.6) 0.857
Positive US arthrogram [n (%)] 42 (67%) 30 (73%) 0.389 27 (64%) 38 (75%) 0.365
  1. See legend to Table 1 for abbreviations