Table 2. Odds Ratios (OR) and 95% Confidence Intervals (95% CI) for anxiety symptoms in relation to female gender, age, physical morbidity, depression and alcohol consumption, estimated by multivariate logistic regression analyses.

		Model 1		Model 2		Model 3		Model 4		Model 5
		OR (CI 95%)	p	OR (CI 95%)	p	OR (CI 95%)	p	OR (CI 95%)	p	OR (CI 95%)	p
Gender	Female	1.937(1.142–3.285)	0.014	2.302 (1.338–3.961)	0.003	2.282 (1.315–3.960)	0.003	2.440 (1.352–4.404)	0.003	2.818 (1.439–5.519)	0.003
Age, groups	≤80 y	−		1 (Ref.)		1 (Ref.)		1 (Ref.)		1 (Ref.)
	81–85 y	−	−	0.937 (0.492–1.785)	0.843	0.876 (0.455–1.687)	0.693	0.772 (0.382–1.562)	0.472	0.801 (0.392–1.634)	0.542
	86–90 y	−	−	1.144 (0.568–2.304)	0.707	1.043 (0.511–2.128)	0.909	1.055 (0.488–2.278)	0.892	1.229 (0.554–2.725)	0.612
	≥91 y	−	−	0.254 (0.098–0.658)	0.005	0.257 (0.098–0.677)	0.006	0.338 (0.124–0.923)	0.034	0.373 (0.133–1.047)	0.055
Physical morbidity	None	−	−	−	−	1 (Ref.)		1 (Ref.)		1 (Ref.)
	1	−	−	−	−	2.579 (1.007–6.602)	0.048	2.487 (0.923–6.697)	0.072	2.281 (0.823–6.319)	0.113
	2	−	−	−	−	2.526 (0.939–6.792)	0.066	2.840 (0.995–8.108)	0.051	2.494 (0.849–67.327)	0.096
	≥3	−	−	−	−	3.627 (1.170–11.243)	0.026	3.711 (1.119–12.305)	0.032	3.525 (1.041–11.934)	0.043
Depression	No	−	−	−	−	−	−	1 (Ref.)		1 (Ref.)
	Mild	−	−	−	−	−	−	4.813 (2.469–9.380)	<0.001	4.832 (2.456–9.508)	<0.001
	Moderate-Severe	−	−	−	−	−	−	7.164 (3.098–16.563)	<0.001	7.283 (3.087–17.182)	<0.001
Alcohol, units/day	1	−	−	−	−	−	−	−	−	1 (Ref.)
	<1	−	−	−	−	−	−	−	−	1.908 (0.866–4.205)	0.109
	2	−	−	−	−	−	−	−	−	2.483 (1.030–5.988)	0.043
	>2	−	−	−	−	−	−	−	−	4.242 (1.189–15.142)	0.026

Subjects with missing value for at least one variable were excluded, leaving 355 subjects for each model.

Model 1, gender; Model 2, gender and age; Model 3, gender, age and physical morbidity; Model 4, gender, age, physical morbidity and depression;

Model 5, gender, age, physical morbidity, depression and alcohol consumption.