Use of different subjective health indicators to assess health inequalities in an urban immigrant population in north-western Italy: a cross-sectional study

Table 7 Multivariate logistic regression analysis to predict poor SRH and less-than-median SF-12 scores

Variable	Level	Poor SRH outcome		PCS-12 < 51.6 outcome^b		MCS-12 < 47.3 outcome^b
Variable	Level	OR (95% CI)^a	p-value	OR (95% CI)^c	p-value	OR (95% CI)^c	p-value
Sex	Male	1.00 (ref)	0.010	-		-
Sex	Female	2.22 (1.21-4.09)	0.010	-		-
Age-class on survey, years	18-24	1.00 (ref)	0.053	-		-
	25-34	0.76 (0.32-1.78)
	35-44	0.64 (0.24-1.67)
	45-54	1.25 (0.49-3.20)
	55+	2.47 (0.93-6.53)
Reason for migration	Study	-		1.00 (ref)	<0.001	1.00 (ref)	0.014
	Work			2.64 (1.65-4.21)*		0.68 (0.44-1.04)
	Family			1.28 (0.72-2.26)		0.44 (0.26-0.76)*
	Religious			4.16 (1.50-11.57)*		0.36 (0.14-0.97)*
HDI quartile of birth country	Low	1.00 (ref)	0.004	-		-
	Medium	0.24 (0.10-0.58)*
	High	0.44 (0.22-0.90)*
	Very high	0.09 (0.01-0.72)*
BMI, kg/m²	< 25	1.00 (ref)	0.005	1.00 (ref)	0.045	-
BMI, kg/m²	≥ 25	2.20 (1.27-3.82)	0.005	1.52 (1.01-2.28)	0.045
Medical conditions	None	1.00 (ref)	<0.001	1.00 (ref)	<0.001	-
	At least 1	3.95 (2.22-7.04)		3.45 (2.26-5.26)

*: Significant comparisons for factors with more than two classes; ^a: OR is considered as an increase (>1) or decrease (<1) in probability of being in poor health in each category, as compared with reference category (ref); ^b: PCS-12 and MCS-12 are expressed in a binary manner as < median and ≥ median value; ^c: OR is considered as an increase (>1) or decrease (<1) in probability of having a less-than-median value of SF-12 composite score in each category, as compared with reference category (ref).

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