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Table 1 Respondents before and after each reminder for the three randomised groups, and final response rates

From: A randomized comparison of three data collection models for the measurement of parent experiences with diabetes outpatient care

  Group A: Postal (n = 836) Group B: Mixed (n = 860) Group C: Electronic (n = 830)
Respondents before reminder
 Electronic, n 59 146
 Paper, n 220 185
 Response rate, % 26.3 28.4 17.6
Respondents after first reminder
 Electronic, n 21 118
 Paper, n 140 109
 Increase in response rate, % 16.7 15.1 14.2
Respondents after second reminder
 Electronic, n 16 81
 Paper, n 157 146
 Increase in response rate, % 18.8 18.8 9.8
Total
 Electronic, n 96 (17.9) 345
 Paper, n 517 441 (82.1)
 Response rate, % 61.8 62.4 41.6