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Table 1 Socio-demographic and baseline characteristics

From: The effect of timing of incentive payments on response rates for cohort study telephone interviews in primary care setting with cost-minimization analysis, a randomized controlled trial

 

Up-front payment group

Delayed payment group

Mean age in years (SD)

63.9 (11.2)

63.9 (11.5)

Genders (n)

 Male (%)

105 (40.5 %)

124 (47.7 %)

 Female (%)

154 (59.5 %)

136 (52.3 %)

Employment status (n)

 Working (%)

84 (32.4 %)

95 (36.5)

 Not working (%)

175 (67.6 %)

165 (36.5)

Smoking status (n)

 Smoker (%)

53 (21.3 %)

59 (24.2 %)

 Nonsmoker (%)

196 (78.7 %)

185 (75.8)

Drinking status (n)

 Drinker (%)

108 (43.5)

128 (52.2 %)

 Nondrinker (%)

140 (56.5 %)

117 (47.8 %)

  1. Chi-squared test showed P > 0.05 for all categorical variables and t-test showed P > 0.05 for all continuous variables