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Table 4 GHQ-12 mean and median scores for non-cases vs. cases meeting any ICD-10 diagnostic criteria during sampling period, Bimodal scoring (0-0-1-1)

From: Using the GHQ-12 to screen for mental health problems among primary care patients: psychometrics and practical considerations

  Women Men All
  N   N   N
 Mean (SD)
  Cases 3.70 (2.66) 235 3.61 (2.64) 89 3.68 (2.65) 324
  Non-cases 1.40 (1.79) 216 1.21 (1.58) 135 1.33 (1.71) 351
 Median (IQR)
  Cases 3 (3) 235 3 (3) 89 3 (3) 324
  Non-cases 1 (2) 216 1 (2) 135 1 (2) 351