Table 4

ORs and 95% CIs for patient and GP characteristics impacting GPs’ estimations of patients’ HL (p<0.05)

	HL disagreement *	OR	95% CI
Patients’ education (referent category: higher education)
No formal education	Underestimation^†	5.58	1.60 to 19.50
Primary education	Underestimation	14.13	6.54 to 30.54
Primary education	Overestimation^‡	2.02	1.22 to 3.13
Secondary education	Underestimation	5.05	2.65 to 9.61
Secondary education	Overestimation	1.34	1.04 to 1.73
Duration of GP–patient relationships (referent category: >10 years)
<1 year	Underestimation	6.7	1.10 to 3.70
1–5 years	Underestimation	4.81	2.79 to 16.09
1–5 years	Overestimation	1.51	1.17 to 1.94
6–10 years	Underestimation	3.70	2.53 to 9.14
GPs’ gender (referent category: female)
Male	Underestimation	2.02	1.69 to 8.09

*GPs’ estimations versus patients’ HL, with reference group: GPs’ estimations of patients’ HL= patients’ HL.
†Underestimation: GPs’ estimations of patients’ HL < patients’ HL.
‡Overestimation: GPs’ estimations of patients’ HL > patients’ HL.
GP, general practitioner; HL, health literacy.