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Table 2 Socio-demographic and clinical characteristics of the study sample

From: Diagnostic utility of a one-item question to screen for depressive disorders: results from the KORA F3 study

Characteristic Male Female Total
  N (%) N (%) N (%)
All age groups 1,545 (48.52%) 1,639 (51.48%) 3,184 (100%)
34-44 years 320 (20.71%) 323 (19.71%) 643 (20.19%)
45-54 years 330 (21.36%) 404 (24.65%) 734 (23.05%)
55-64 years 372 (24.08%) 394 (24.04%) 766 (24.06%
65-74 years 323 (20.91%) 347 (21.17%) 670 (21.04%)
75-85 years 200 (12.94%) 171 (10.43%) 371 (11.65%)
Basic education 912 (59.22%) 968 (59.31%) 1880 (59.04%)
Diabetes mellitus 141 (9.16%) 117 (7.15%) 258 (8.84%)
Angina pectoris 112 (7.29%) 134 (8.20%) 246 (8.41%)
Previous hospitalisation due to myocardial infarction 58 (3.77%) 30 (1.83%) 88 (2.85%)
Intake of antidepressants 40 (2.60%) 101 (6.16%) 141 (4.64%)
PHQ-9 “depressive mood”, all age groups 330 (21.63%) 551 (33.93%) 881 (27.97%)
34-44 years 49 (15.41%) 79 (24.61%) 128 (20.03%)
45-54 years 57 (17.33%) 123 (30.60%) 180 (24.62%)
55-64 years 94 (25.41%) 146 (37.15%) 240 (31.45%)
65-74 years 78 (24.53%) 133 (38.66%) 211 (31.87%)
75-85 years 52 (27.23%) 70 (42.68%) 122 (34.37%)
PHQ-9 “major depressive disorder”, all age groups 68 (4.46%) 136 (8.37%) 204 (6.48%)
34-44 years 10 (3.14%) 14 (4.36%) 24 (3.76%)
45-54 years 14 (4.26%) 31 (7.71%) 45 (6.16%)
55-64 years 14 (3.78%) 32 (8.14%) 46 (6.03%)
65-74 years 13 (4.09%) 39 (11.34%) 52 (7.85%)
75-85 years 17 (8.90%) 20 (12.20%) 37 (10.42%)
  1. PHQ-9: 9-item depression module of the Patient Health Questionnaire.