Table 4

Response to second reminder in RCT B by first reminder received
Full questionnaire Postcard
Full questionnaire Abridged questionnaire Full questionnaire Abridged questionnaire
N = 221 N = 110 N = 253 N = 126
n % n % n % n %
Completed questionnaires returned 18 8.1 10 9.1 16 6.3 25 19.8
Absolute percentage difference (95% CI) compared to full questionnaire/full questionnaire combination; p-value
  Full/Abridged -1.0 (− 7.6, 5.5); 0.77
  Postcard/Full 1.8 (−2.9, 6.5); 0.45
  Postcard/Abridged -11.7 (−19.5, -3.9); 0.002
Logistic regression model odds ratios (95% CI); p-value
  Abridged 1.13 (0.50, 2.53); 0.77
  Postcard 0.76 (0.38, 1.53); 0.45
  Interaction (Abridged * Postcard) 3.25 (1.13, 9.29); 0.028

Glidewell et al.

Glidewell et al. BMC Health Services Research 2012 12:250   doi:10.1186/1472-6963-12-250

Open Data