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Table 3 Crude and socio-demographic-adjusted prevalence rates of depression, mental well-being, and social support by mode (GEDA 2.0 pilot study, Germany, August – November 2012)

From: Mode differences in a mixed-mode health interview survey among adults

  Crude prevalence Adjusted prevalence*
  SAQ-Paper SAQ-Web CATI SAQ-Paper vs. SAQ-Web SAQ-Paper vs. CATI SAQ-Web vs. CATI SAQ-Paper SAQ-Web CATI SAQ-Paper vs. SAQ-Web SAQ-Paper vs. CATI SAQ-Web vs. CATI
  % % % p-value p-value p-value % % % p-value p-value p-value
PHQ-8: diagnostic algorithm             
Current depression 12.8 10.1 15.3 n.s. n.s. <0.05 12.0 11.0 15.3 n.s. n.s. n.s.
BI-M2: Feeling depressed             
Never 35.0 27.3 40.1 <0.01 n.s. <0.001 33.0 28.4 39.2 n.s. <0.05 <0.01
Daily/weekly 13.5 12.6 10.8 n.s. n.s. n.s. 13.4 13.6 11.0 n.s. n.s. n.s.
WHO-5: Well-being score (0–100)             
Very good or excellent (score > 75) 28.2 27.3 33.5 n.s. n.s. n.s. 27.1 30.6 32.4 n.s. n.s. n.s.
Poor or minimal (score ≤ 25) 13.5 7.5 4.9 <0.01 <0.001 n.s. 11.8 8.2 4.9 n.s. <0.001 n.s.
OSS-3: social support score (3–14)             
Strong social support (score ≥ 12) 23.2 31.8 39.3 <0.01 <0.001 <0.05 24.2 30.2 40.2 <0.05 <0.001 <0.01
Poor social support (score ≤ 8) 21.0 15.0 11.1 <0.05 <0.001 n.s. 19.0 17.0 11.0 n.s. <0.001 <0.05
  1. SAQ-Paper = self-administered paper mail questionnaire; SAQ-Web = self-administered web survey; CATI = computer-assisted telephone interview.
  2. PHQ-8 = Eight-item Patient Health Questionnaire depression scale.
  3. BI-M2 = Budapest Initiative Mark 2 questionnaire.
  4. WHO-5 = Five-item WHO Well-Being Index.
  5. OSS-3 = Three-item Oslo Social Support scale.
  6. *adjusted for age, gender, education, income, labour status, marital status, type of household.
  7. n.s. = not significant (p > 0.05); vs. = versus.