Table 2.

Risk indicators of 12-month emotional disorder among informal caregivers (n = 1,759)

		Model 1 a		Model 2 b
	%	OR	95% CI	OR	95% CI	PARP	NNT
Sociodemographics
Female gender	59.6	2.05**	1.20-3.50	1.68*	1.00-2.82	37.3	21.2
Younger than 45	36.2	2.00**	1.24-3.24	2.53**	1.44-4.43	25.3	19.0
Low educational level	28.0	1.14	0.68-1.89
Unemployed	29.5	2.67***	1.56-4.55	2.23**	1.29-3.87	25.7	15.3
Living without a partner	25.9	2.34***	1.51-3.65	1.87**	1.20-2.91	26.6	13.0
Children at home	44.0	0.72	0.47-1.11
Caregiving characteristics
Care recipient
First-degree family	55.3	1.33	0.88-2.01	2.04**	1.28-3.25	12.7	57.9
Other family	30.0	0.35***	0.20-0.61
Partner	11.8	1.54	0.82-2.88	2.17*	1.10-4.28	3.2	49.1
Friend	16.4	1.92**	1.21-3.07	3.46***	1.73-6.92	13.0	16.9
More than one care recipient	39.0	0.81	0.54-1.20	0.53*	0.30-0.96	-	-
Living with care recipient	16.6	1.40	0.85-2.30
Reason for care
Physical problems	61.2	0.71	0.48-1.06
Mental problems	29.9	1.87**	1.26-2.79
Ageing	30.7	0.63	0.37-1.07
Dementia	12.2	1.44	0.85-2.45
Kind of care
Domestic work	59.1	1.19	0.77-1.82
Personal care or nursing	27.0	1.39	0.89-2.16
Emotional support	89.5	6.83***	2.49-18.76	6.16***	2.18-17.39	83.0	14.4
Practical care	77.3	1.45	0.82-2.57
Eight or more hours per week	32.1	1.19	0.78-1.79
Longer than one year	48.7	1.88**	1.20-2.93	1.92**	1.19-3.12	22.6	28.6
Other characteristics
Lack of social support	11.2	4.55***	2.80-7.40	3.22***	1.97-5.25	23.7	6.3
Chronic physical disorder	45.5	1.52	0.97-2.38

*p < 0.05; **p < 0.01; ***p < 0.001; OR: Odds Ratio; CI: Confidence Intervals. PARP: Population Attributable Risk Proportion; NNT: Number Needed to Treat.

^aLogistic regression models, adjusted for age and gender.

^bFinal backward stepwise multivariable logistic regression model.