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Table 1 Baseline characteristics of the pilot study population

From: Reducing non-attendance in outpatient appointments: predictive model development, validation, and clinical assessment

  Dermatology
(N=805)
Pneumology
(N=303)
Control Intervention P Control Intervention P
Sociodemographic characteristics
Age group (years), n (%)
 0-14 24 (5.78) 28 (7.18) 0.971 1 (0.64) 0 (0.00) 0.071
 14-18 24 (5.78) 24 (6.15) 2 (1.27) 0 (0.00)
 18-25 31 (7.47) 31 (7.95) 6 (3.82) 0 (0.00)
 25-35 47 (11.33) 36 (9.23) 9 (5.73) 3 (2.05)
 35-50 93 (22.41) 89 (22.82) 20 (12.74) 24 (16.44)
 50-65 74 (17.83) 67 (17.18) 54 (34.39) 47 (32.19)
 65-80 81 (19.52) 79 (20.26) 54 (34.39) 62 (42.47)
 > 80 41 (9.88) 36 (9.23) 11 (7.01) 10 (6.85)
Gender (male), n (%) 177 (42.65) 169 (43.33) 0.901 92 (58.60) 94 (64.38) 0.360
Attendance history
 Attended to the last visit, n (%) 281 (70.96) 284 (75.94) 0.340 120 (76.92) 116 (80.56) 0.355
 Major ambulatory surgery, mean (SD) 0.16 (0.36) 0.16 (0.37) 0.773 - - -
 Rate of attendance of previous appointments, mean (SD) 0.75 (0.19) 0.76 (0.17) 0.853 0.77 (0.11) 0.78 (0.10) 0.499
 Lead time (days)a, mean (SD) 125.35 (102.1) 123.68 (98.47) 0.814 188.03 (165.64) 216.45 (170.64) 0.142
 N° of previous visits, mean (SD) 42.96 (45.76) 44.37 (48.78) 0.681 69.93 (62.27) 70.33 (60.89) 0.955
 Time from last visit (days), mean (SD) 141.53 (312.56) 169.11 (407.8) 0.291 67.32 (73.37) 128.95 (338.93) 0.028
  1. aDays of waiting since scheduling until the appointment date