. 2020 Nov 7;176:106219. doi: 10.1016/j.rmed.2020.106219

Table 4.

Influence of key variables on depression.^a

	Depression^a
	Model 1 [Age; years qualified; supporting the household; undertaking aerosol procedures]				Model 2 [years qualified; supporting the household; undertaking aerosol procedures]				Model 3 [Age; supporting the household; undertaking aerosol procedures]
	OR^b	95% CI	Wald	P value	OR	95% CI	Wald	P Value	OR	95% CI	Wald	P value
Age
18 – 35 (reference category)
35–50	0.458	0.151–1.386	1.912	0.169	-	-		-	0.247	0.086–0.708	6.779	0.009**
50+	1.690	0.260–10.999	0.301	0.583	-	-		-	0.264	0.077–0.904	4.497	0.034*
Years Qualified
Less than 20 (reference category)
20 or more	0.123	0.023–0.651	6.065	0.014*	0.185	0.063–0.545	9.392	0.002**	-	-		-
Support Household									-	-		-
Yes (reference category)
No with difficulty	5.323	1.795–15.778	9.096	0.003**	4.866	1.705–13.890	8.741	0.003**	5.116	1.822–14.649	9.536	0.002**
Aerosol Procedures
No (reference category)
Yes	2.591	0.761–8.827	2.317	0.128	2.377	0.720–7.844	2.021	0.155	3.103	0.942–10.226	3.464	0.063
Nagerleke	0.31				0.28				0.25

OR, odds ratio; CI, confidence interval; *P < 0.05 **P < 0.001.

threshold for depression a score above 10.

Adjusted ORs: model includes all significant predictors identified in univariate analysis; Wald reported to three significant places.