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Table 1 Baseline Participant Characteristics

From: Implementation of a Smartphone application in medical education: a randomised trial (iSTART)

Characteristic Smartphone Application (n = 40) No Intervention (n = 40) Total P-Value
General and Academic characteristics
 Mean Age (years) (SD) 25.6 ± 2.7 24.9 ± 1.5 25.3 ± 2.2 0.181
 Female sex (n, %) 27 (67.5%) 21 (52.5%) 48 (60%) 0.252
 Median time in medical school (years) (IQR) 6 (6–7) 6 (6–7) 6 (6–7) 0.351
 Campus Valparaiso (n, %) 28 (70%) 28 (70%) 56 (70%) 12
 Course repetition (n, %) 10 (25%) 8 (20%) 18 (22.5%) 0.791
 Median number repetitions (IQR) 1.5 (1–3) 1 (1–3) 1 (1–3) 0.263
 Internal Medicine Internship Grade (SD) 6.3 ± 0.4 6.3 ± 0.4 6.3 ± 0.4 0.841
 Internal Medicine Undergraduate Examination Grade (SD) 5.4 ± 0.7 5.4 ± 0.7 5.4 ± 0.8 0.911
Experience with Smartphones
 Median time using smartphones (years) (IQR) 4 (3–5) 4 (3–6) 4 (3–6) 0.891
 Smartphone use in clinical practice (n, %) 34 (85%) 33 (82.5%) 67 (83.7%) 12
 Smartphone use for academic purposes (n, %) 16 (40%) 15 (37.5%) 31 (38.8%) 12
Operating system (n, %)
 Android® 25 (62.5%) 26 (65%) 51 (63.8%) 12
 iOs® 15 (37.5%) 14 (35%) 29 (36.2%)  
Performance in Baseline Test
 Mean overall score (SD) 40.3 ± 11.0 41.8 ± 11.2 41.1 ± 11.1 0.531
 Mean total time (minutes) (SD) 65.2 ± 26.3 66.0 ± 28.0 65.6 ± 27.0 0.891
 Mean time per question (seconds) (SD) 44.3 ± 18.6 45.5 ± 21.7 44.9 ± 20.1 0.801
  1. 1Student’s T Test. 2Fisher’s Exact Test3Mann-Whitney U TestSD: Standard Deviation. IQR: Interquartile range