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. 2015 Jul 8;16:295. doi: 10.1186/s13063-015-0808-9

Table 3.

Questionnaire response rate by sex and age following intervention

Four-week questionnaire 12-week questionnaire
SMS text pre-notification No pre-notification SMS text pre-notification No pre-notification
Male: n/N 90/186 96/186 72/141 69/141
% 56 % 55 % 40 % 44 %
Adjusteda odds ratio (95 % CI) 1.05 (0.68–1.61); P = 0.842 0.85 (0.55–1.32); P = 0.475
Female: n/N 16/41 25/41 15/35 20/35
% 61 % 38 % 49 % 36 %
Adjusteda odds ratio (95 % CI) 2.58 (1.05–6.33); P = 0.038 1.72 (0.71–4.17); P = 0.232
≤40 years: n/N 43/96 53/96 33/69 36/69
% 54 % 43 % 37 % 33 %
Adjustedb odds ratio (95 % CI) 1.47 (0.83–2.56); P = 0.184 1.14 (0.63–2.05); P = 0.664
>40 years: n/N 63/131 68/131 54/107 53/107
% 60 % 59 % 47 % 51 %
Adjustedb odds ratio (95 % CI) 1.04 (0.61–1.79); P = 0.877 0.86 (0.51–1.46); P = 0.580

Data are presented as number and percentages within each subcategory

SMS short messenger service, CI confidence interval

aAdjusted for age and reminder allocation

bAdjusted for sex and reminder allocation