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Table 1 Baseline sociodemographic clinical characteristics*

From: Health economic evaluation of an internet intervention for depression (deprexis), a randomized controlled trial

Characteristic Intervention Group
(N= 1,904)
Control Group
(N= 1,901)
Total
(N= 3,805)
  Mean SD Mean SD Mean SD
Age 45 11.0 46 10.7 45 10.9
Weekly working hours 33 16.0 34 15.9 33 15.9
  N %a N %a N %a
Female 1496 79.2% 1491 78.8% 2987 79.0%
Nationality
 German 1819 97.0% 1823 97.1% 3642 97.0%
 Other 57 3.0% 55 2.9% 112 3.0%
Highest academic qualificationb
 Lower secondary 237 12.6% 213 11.4% 450 11.8%
 Middle secondary 748 39.9% 759 41.6% 1507 40.2%
 Higher secondary 547 29.2% 549 28.9% 1096 29.2%
 University degree 335 17.9% 328 17.6% 663 18.4%
 None of them, haven't got a graduation (yet) 4 0.2% 1 0.1% 5 0.1%
 No graduation/ leaving certificate 4 0.2% 8 0.4% 12 0.3%
Vocational education (multiple responses possible)
 Apprenticeship 1136 44.7% 1125 44.4% 2261 44.6%
 Vocational school 382 15.0% 376 14.9% 758 15.0%
 Technical college 307 12.1% 291 11.5% 598 11.8%
 University 425 16.7% 419 16.6% 844 16.6%
 No degree 95 3.7% 110 4.3% 205 4.0%
 Other degree 194 7.6% 210 8.3% 404 8.0%
Working status
 Self-employed 76 4.1% 91 4.9% 167 4.5%
 Employee (part-time) 494 26.6% 513 27.6% 1007 27.1%
 Employee (full-time) 698 37.6% 715 38.4% 1413 38.0%
 Seeking work 235 12.7% 207 11.1% 442 11.9%
 Student 111 6.0% 95 5.1% 206 5.5%
 Pensioner 211 11.4% 205 11.0% 416 11.2%
 Temporary employee 30 1.6% 34 1.8% 64 1.7%
Currently in treatment for depression 1036 55.2% 983 52.3% 2019 53.8%
Outpatient psychotherapy
 Currently 521 32.5% 495 31.1% 1016 31.8%
 Recently 413 25.8% 455 28.6% 868 27.2%
 Some time ago 667 41.7% 643 40.4% 1310 41.0%
Day-clinic treatment
 Currently 25 10.3% 18 7.4% 43 8.8%
 Recently 56 23.0% 58 23.9% 114 23.5%
 Some time ago 162 66.7% 167 68.7% 329 67.7%
Drug therapie
 Currently 871 53.8% 842 52.7% 1713 53.2%
 Recently 338 20.9% 378 23.6% 716 22.3%
 Some time ago 409 25.3% 379 23.7% 788 24.5%
In-patient stay in a psychiatric or psychosomatic clinic
 Currently 36 4.9% 29 4.0% 65 4.5%
 Recently 190 26.0% 190 26.3% 380 26.2%
 Some time ago 504 69.0% 504 69.7% 1008 69.4%
  1. avalid percentage (excluding missing values)
  2. bHighest academic qualification according to the German classification “Hauptschule” (“lower”, 9 years, until age 15/16), “Realschule” (“middle”, 10 years, until age 16/17), “(Fach)Hochschulreife/Abitur” (“highest”, 12 or 13 years, until age 17-19)
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