Table 4.

Use of private health services by three indicators of socioeconomic position. Percentage ratio (RP) and 95% confidence interval (CI)

Measures of socioeconomic position	GP				Specialist				Hospitalisation
	Model 1a		Model 2b		Model 1a		Model 2b		Model 1a		Model 2b
	RP (IC 95%)		RP (IC 95%)		RP (IC 95%)		RP (IC 95%)		RP (IC 95%)		RP (IC 95%)
Education
Tertiary	1.00	-	1.00	-	1.00	-	1.00	-	1.00	-	1.00	-
Upper secondary	0.49	(0.34–0.68)	0.48	(0.34–0.67)	0.58	(0.45–0.73)	0.56	(0.44–0.71)	0.55	(0.38–0.80)	0.54	(0.37–0.79)
Lower secondary	0.25	(0.16–0.40)	0.24	(0.15–0.39)	0.26	(0.19–0.37)	0.25	(0.18–0.25)	0.49	(0.32–0.74)	0.47	(0.30–0.71)
Primary/no education	0.12	(0.08–0.18)	0.11	(0.07–0.17)	0.18	(0.14–0.24)	0.16	(0.12–0.22)	0.28	(0.19–0.42)	0.25	(0.17–0.38)
Social class
I–II	1.00	-	1.00	-	1.00	-	1.00	-	1.00	-	1.00	-
III	0.45	(0.32–0.62)	0.44	(0.32–0.62)	0.74	(0.58–0.94)	0.73	(0.57–0.92)	0.58	(0.42–0.81)	0.56	(0.41–0.80)
IV	0.21	(0.14–0.31)	0.20	(0.14–0.31)	0.33	(0.25–0.44)	0.32	(0.23–0.41)	0.25	(0.16–0.37)	0.24	(0.16–0.36)
V–VI	0.03	(0.01–0.09)	0.03	(0.01–0.08)	0.21	(0.14–0.30)	0.20	(0.14–0.29)	0.20	(0.13–0.33)	0.19	(0.12–0.31)
Monthly income
More than 1800 euros	1.00	-	1.00	-	1.00	-	1.00	-	1.00	-	1.00	-
From 1201 to 1800 euros	0.42	(0.30–0.59)	0.42	(0.30–0.59)	0.56	(0.44–0.71)	0.55	(0.44–0.70)	0.64	(0.47–0.88)	0.63	(0.46–0.87)
From 901 to 1200 euros	0.25	(0.16–0.39)	0.24	(0.15–0.38)	0.35	(0.26–0.48)	0.34	(0.25–0.47)	0.30	(0.19–0.48)	0.29	(0.18–0.46)
Up to 900 euros	0.11	(0.06–0.18)	0.10	(0.06–0.18)	0.26	(0.19–0.36)	0.24	(0.17–0.34)	0.16	(0.09–0.27)	0.14	(0.09–0.25)

a. Adjusted for age and sex

b. Adjusted for age, sex, and number of chronic diseases. In monthly income, also adjusted for number of members in household.