Table 3.

Effect modification of change in dichotomous outcome (SRH) and continuous outcomes (four domains of WHOQOL-BREF) by selected sociodemographic and migration-related variables using interaction terms in generalized estimating equations, N = 353

	Good SRH		Physical health		Psychological health		Social relationships		Environment
	RR (95% CI)	P	B (95% CI)	P	B (95% CI)	P	B (95% CI)	P	B (95% CI)	P
Gender
Male	1.2 (1.1, 1.4)		2.2 (1.7, 2.7)		1.9 (1.3, 2.4)		2.1 (1.5, 2.6)		5.5 (5.0–5.9)
Female	1.0 (0.6, 1.1)		1.7 (1.2, 2.1)		1.5 (1.1, 1.9)		1.2 (0.6, 1.7)		4.7 (4.2, 5.1)
Interaction test		0.04*		0.157		0.293		0.027*		0.023*
Age
< 40 years	1.1 (1.0, 1.2)		2.1 (1.8, 2.5)		1.9 (1.5, 2.3)		1.6 (1.2, 2.1)		5.1 (4.7, 5.5)
≥ 40 years	1.1 (0.9, 1.4)		1.3 (0.5, 2.1)		0.9 (0.1, 1.6)		1.4 (0.7, 2.1)		5.0 (4.3, 5.7)
Interaction test		0.793		0.056		0.016*		0.533		0.677
Marital status
Married	1.1 (1.0, 1.3)		2.0 (1.6, 2.5)		1.8 (1.4, 2.2)		1.5 (1.0–1.9)		5.2 (4.9, 5.7)
Other	1.0 (0.9, 1.1)		1.6 (1.0, 2.2)		1.2 (0.6, 1.9)		2.1 (1.3, 2.8)		4.5 (3.8, 5.2)
Interaction test		0.478		0.243		0.121		0.202		0.048*
High social support (ESSI)
Yes	0.9 (0.8, 1.1)		1.5 (0.8, 2.1)		0.8 (0.2, 1.4)		1.4 (0.8, 1.9)		4.4 (3.9, 5.0)
No	1.2 (1.1,1.3)		2.2 (1.8, 2.6)		2.1 (1.7, 2.5)		1.7 (1.2, 2.3)		5.4 (5.0, 5.8)
Interaction test		0.01*		0.062		0.001*		0.337		0.006*
Residence permit in Lebanon
Yes	0.9 (0.8, 1.1)		1.8 (1.2, 2.4)		1.5 (0.8, 2.2)		1.0 (0.2, 1.7)		5.0 (4.4, 5.5)
No	1.2 (1.1, 1.3)		2.0 (1.6, 2.4)		1.7 (1.3, 2.1)		1.9 (1.5, 2.4)		5.1 (4.7, 5.6)
Interaction test		0.026*		0.519		0.614		0.035*		0.642

Statistically significant results are marked with an asterisk (p < 0.05). Abbreviations: SRH = Self-rated health. P = p-value. RR = Relative risk. CI = Confidence interval. B = beta coefficient