Health numeracy skills of medical students:cross-sectional and controlled before-and-after study

BMC Medical Education

Table 4 Objective and subjective numeracy scores (median, 95% confidence interval) in non-intervention medical (n = 59) and intervention medical (n = 54) student groups

Numeracy test	Group	First measurement	Second measurement	Third measurement	P†	BF₁₀‡
Subjective numeracy^a	Non-intervention group	4.8 (4.6 to 5.0) §	4.5 (4.3 to 4.8)	4.4 (4.3 to 4.8)	< 0.001	990.99
	P¶	< 0.001	0.142	0.029
	Intervention group	4.5 (3.8 to 4.8)	4.3 (4.0 to 4.5)	4.9 (4.5 to 5.1)	0.168	0.87
Objective numeracy^a	Non-intervention group	17.0 (15.0 to 17.1) ‖	18.5 (18.0 to 19.0)	19.0 (18.0 to 19.0)	< 0.001	1.49 × 10¹⁰
	P¶	< 0.001	0.002	0.117
	Intervention group	18.0 (18.0 to 20.0) #	19.0 (19.0 to 20.0)	19.0 (19.0 to 20.0)	< 0.001	1212.78

^aSubjective numeracy score is expressed as mean of answers to eight Likert type questions ranging 1–6; Objective numeracy is expressed as sum of correct answers on a scale from 0 to 20
†Friedman non-parametric test for repeated samples
‡Bayesian repeated measures ANOVA; BF – Bayes Factor
§Significantly different from the third measurement, Conover post-hoc test
¶Mann Whitney test for independent samples
‖Significantly different from other two time point measurements, Conover post-hoc test
#No differences were found between different time point measurements on post-hoc testing

ISSN: 1472-6920