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Table 2 Chance of talking to someone by time of day, day of week, and by gender of RA caller at the date of the call (n = 16092 data points)

From: You are how you recruit: a cohort and randomized controlled trial of recruitment strategies

  Percentage OR (95% Conf. interval) p-value
Time of day
Morning (09:00 – 12:59) 34.0% (1698/4992) Reference
Afternoon (13:00 – 16:59) 35.2% (3133/8895) 1.06 (0.98 - 1.15) 0.17
Evening (17:00 – 23:00) 40.3% (889/2205) 1.35 (1.20 - 1.52) <0.001
Day of week
Weekday call 35.4% (5637/15918) Reference
Saturday call 50.0% (44/88) 1.68 (1.06 – 2.66) 0.03
Sunday call 45.4% (39/86) 1.52 (0.95 – 2.42) 0.08
Gender of research assistant caller
Male caller 29.6% (444/1500) Reference
Female caller 36.2% (5276/14592) 1.21 (1.06 - 1.39) 0.01