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Table 3 Distribution of health-related variables in the two study populations

From: Population-based assessment of health, healthcare utilisation, and specific needs of Syrian migrants in Germany: what is the best sampling method?

  PR study population (N = 49) RDS study population (N = 156)
  Unweighted estimates Weighted estimates
n % 95% CI n % 95% CI p* % 95% CI p**
Physical complaints  
 Feeling unwell in the last four weeks 16 32.7 19.9 to 47.5 18 11.5 7.0 to 17.6 < 0.01 15.8 6.6 to 29.4 0.06
Chronic diseases
 Cardiovascular 7 14.3 5.9 to 27.2 15 9.6 5.5 to 15.4 0.36 9.6 4.8 to 16.7 0.38
 Neurological 10 20.4 10.2 to 34.3 5 3.2 1.0 to 7.3 < 0.01 3.8 1.0 to 9.4 < 0.01
Healthcare utilisation  
 Dental check-up 36 73.5 58.9 to 85.1 58 37.2 29.6 to 45.3 < 0.01 31.6 22.5 to 41.9 < 0.01
 GP visit 36 73.5 58.9 to 85.1 43 27.6 20.7 to 35.3 < 0.01 19.0 12.6 to 27.0 < 0.01
  1. CI exact Clopper-Pearson confidence interval, PR population registry, RDS respondent-driven sampling
  2. * p-value calculated using Chi2 test for the unweighted estimates of the PR and RDS study population
  3. ** p-value calculated using Rao-Schtt correction of the Chi2 test for the weighted estimates of the RDS study population