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Table 3 Scores of the severity index of depression (PHQ-9 questionnaire)

From: Osteoarthritis: quality of life, comorbidities, medication and health service utilization assessed in a large sample of primary care patients

   PHQ-9 scores Fulfilling criteria for Overall
Gender N Mean SD Major Depression Minor Depression Depressive Disorder
male 344 15.33 4.76 38 (11.0%) 27 (7.8 %) 65 (18.9%)
female 668 15.95 4.63 84 (12.6 %) 47 (7.1 %) 131 (19.6%)
    122 (12.0%) 74 (7.3%) 196 (19.4%)
  1. * p < 0.05; **p < 0.01; PHQ-9 scores compared by ANCOVA (adjusted for age, disease duration and comorbidities); severity categories by means of Chi-square-test