Increase of catastrophic health expenditure while it does not have socio-economic anymore; finding from a district on Tehran after recent extensive health sector reform

Table 3 Associations between the key determinants and impoverishment in 2015

Variables	B	SE	P-value	Adjusted OR 2015	95% confidence interval
Variables	B	SE	P-value	Adjusted OR 2015	Lower	Upper
Economic status				*
Quintile 1 (poorest)	1.083	1.240	0.382	2.954	0.260	33.545
Quintile 2	1.843	1.101	0.094	6.317	0.730	54.695
Quintile 3	3.909	1.055	< 0.001	49.854	6.309	393.938
Quintile 4	4.669	1.076	< 0.001	106.580	12.942	877.735
Lack of Insurance	−0.612	0.513	0.233	0.542	0.198	1.483
Female household head	0.120	0.526	0.819	1.128	0.402	3.165
Having member ≥65 in Household	0.016	0.413	0.969	1.016	0.452	2.284
Having member ≤5 in Household	0.217	0.576	0.707	1.242	0.401	3.845
Household size
3–6 members	−.499	0.496	0.314	0.607	0.230	1.604
≥ 7 members	−1.899	1.164	0.103	0.150	0.015	1.466
Having disabled member in household	0.088	0.586	0.880	1.092	0.346	3.466
Dentistry service usage	0.395	0.356	0.267	1.484	0.739	2.980
Inpatient service usage	0.582	0.398	0.144	1.789	0.819	3.906
Outpatient service usage	0.558	0.673	0.407	1.746	0.467	6.531
Constant	−5.389	1.244	< 0.001	0.005*

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