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Table 4 Crude and socio-demographic-adjusted rates of positive and negative responses on health behaviour measures 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
Smoking             
Daily 18.6 16.2 16.1 n.s. n.s. n.s. 18.0 15.2 17.5 n.s. n.s. n.s.
Never 46.1 44.4 43.6 n.s. n.s. n.s. 45.4 46.0 42.6 n.s. n.s. n.s.
AUDIT-C: Alcohol consumption             
Hazardous consumption 29.2 33.3 30.7 n.s. n.s. n.s. 31.2 31.0 31.2 n.s. n.s. n.s.
Never-drinkers 12.4 8.9 13.3 n.s. n.s. <0.05 10.9 10.9 13.3 n.s. n.s. n.s.
Physical activity             
≥5 days a week ≥30 minutes a day 16.8 15.5 21.7 n.s. <0.05 <0.05 16.4 15.5 21.4 n.s. n.s. <0.05
<2.5 h a week 62.2 63.2 55.9 n.s. <0.05 <0.05 62.2 63.2 56.5 n.s. n.s. n.s.
Sporting activity             
More than four times a week 17.8 17.3 30.2 n.s. <0.001 <0.001 16.8 18.6 30.4 n.s. <0.001 <0.001
None 25.1 15.5 16.8 <0.001 <0.01 n.s. 23.0 16.9 17.0 <0.05 <0.05 n.s.
Participation in influenza vaccination #             
Yes 38.1 25.2 41.1 <0.001 n.s. <0.001 33.7 32.3 38.2 n.s. n.s. n.s.
  1. SAQ-Paper = self-administered paper mail questionnaire; SAQ-Web = self-administered web survey; CATI = computer-assisted telephone interview.
  2. *adjusted for age, gender, education, income, labour status, marital status, type of household.
  3. AUDIT-C = Alcohol Use Disorders Identification Test - Consumption.
  4. #during the past winter season (2011/2012).
  5. n.s. = not significant (p > 0.05); vs. = versus.