Medication use and factors associated with opiate use among patients with diagnosed fibromyalgia from two ethnic sectors in southern Israel

Table 3 Associations of dichotomic independent variables with opiates use in two ethnic groups

Variable	Jewish ethnicity		Arab ethnicity		Homogeneity of OR^a, p-value^c
Variable	OR^a	CI (95%)^b	OR^a	CI (95%)^b	Homogeneity of OR^a, p-value^c
Gender (male)	0.994	0.846–1.167	0.494***	0.325–0.747	0.002
Another localized pain syndrome	3.054***	2.360–4.005	12.517***	3.532–79.497	0.048
Rheumatic disease	1.503***	1.322–1.709	1.864**	1.240–2.860	0.332
Psychiatric co-morbidity	1.442***	1.304–1.594	1.569**	1.193–2.065	0.569
Treatment with a recommended drug	3.241***	2.913–3.609	3.393***	2.523–4.594	0.778

^aOdds ratio, ^bconfidence interval (95%), ^cBreslow–Day test, ***p < 0.001, **p < 0.01

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