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Table 2 Comparison of baseline and final outcome assessments

From: Does access to a portable ophthalmoscope improve skill acquisition in direct ophthalmoscopy? A method comparison study in undergraduate medical education

Assessment Baseline (1) Mean (CI 95%) OR *Median (Q1-Q3) Final (2) Mean (CI 95%) OR *Median (Q1-Q3) Change (2–1) Mean (CI 95%) OR *Median (Q1-Q3) P value
ALL VCDR (error) 0.55 (0.51 to 0.59) 0.45 (0.42 to 0.49) -0.1 (−0.14 to − 0.05) < 0.01
 Control 0.56 (0.51 to 0.61) 0.48 (0.43 to 0.53) −0.08 (− 0.15 to − 0.02) < 0.01
 Intervention 0.54 (0.48 to 0.56) 0.42 (0.37 to 0.48) −0.12 (− 0.18 to − 0.05) < 0.01
ALL F-MCQ (%) *50 (35.7 to 66.7) *41.2 (33.3 to 50.0) *-8.3 (−21.4 to 0) < 0.01
 Control *42.9 (37.2 to 62.8) *35.7 (28.6 to 42.9) *-7.1 (−21.4 to −1.8) < 0.01
 Intervention *58.3 (33.3 to 77.1) *45.8 (39.6 to 58.3) *-16.7 (−18.7 to − 10.4) < 0.01
ALL MSE (%) *87.5 (75 to 100) *75.0 (62.5 to 75) *-12.5 (−25 to 0) < 0.01
 Control *87.5 (75 to 100) *75.0 (50 to 75) *-12.5 (−25 to 0) < 0.01
 Intervention *87.5 (75 to 100) *75.0 (62.5 to 75) *-12.5 (−25 to −12.5) < 0.01
ALL EOU (score) 5.14 (5.03–5.24) 5.27 (5.16–5.38) 0.14 (0.01–0.26) 0.035
 Control 5.15 (5.00–5.29) 5.19 (5.03–5.36) 0.04 (−0.14 to 0.24) 0.624
 Intervention 5.12 (4.98–5.26) 5.36 (5.22–5.55) 0.24 (0.08 to 0.39) 0.03