Table 2.

Actor and partner effects of socioeconomic position on subjective and objective caregiver burden: Unadjusted and adjusted odds ratios (OR) and their 95% confidence intervals (CI) from logistic regressions

	High subjective caregiver burden (ZBI-s ≥ 12)		High objective caregiver burden (≥3 h of daily caregiving)
	Model 1	Model 2	Model 1	Model 2
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Actor effects
Net-equivalent household income
Per CHF 1000	0.93 (0.69–1.26)	0.94 (0.66–1.34)	0.96 (0.71–1.29)	0.88 (0.61–1.28)
Years of formal education
Per year	0.89 (0.74–0.98)*	0.94 (0.79–1.12)	0.84 (0.71–0.99)*	0.88 (0.73–1.00)*
Subjective social position
0–10	0.71 (0.52–0.96)*	0.66 (0.48–0.92)*	0.92 (0.70–1.20)	0.90 (0.67–1.22)
Financial strain
No	Reference	Reference	Reference	Reference
Yes	2.08 (0.81–5.31)	2.34 (0.86–6.39)	2.20 (1.01–4.80)*	2.51 (1.05–6.02)*
Home ownership
No	Reference	Reference	Reference	Reference
Yes	0.26 (0.10–0.67)**	0.17 (0.05–0.53)**	1.11 (0.43–2.85)	0.87 (0.29–2.62)
Partner effects
Net-equivalent household income
Per CHF 1000	0.84 (0.61–1.15)	0.87 (0.59–1.27)	0.99 (0.76–1.30)	1.15 (0.82–1.62)
Years of formal education
Per year	0.92 (0.79–1.07)	0.96 (0.81–1.14)	0.82 (0.71–0.94)**	0.84 (0.72–0.97)*
Subjective social position
0–10	0.87 (0.67–1.12)	1.00 (0.73–1.38)	0.89 (0.72–1.10)	1.20 (0.90–1.59)
Financial strain
No	Reference	Reference	Reference	Reference
Yes	1.23 (0.46–3.23)	0.82 (0.28–2.42)	1.84 (0.84–4.04)	0.99 (0.40–2.49)
Home ownership
No	Reference	Reference	Reference	Reference
Yes	0.26 (0.10–0.67)**	0.19 (0.06–0.58)**	0.98 (0.44–2.17)	0.91 (0.34–2.47)

Model 1: Unadjusted; Model 2: Adjusted for age, sex, employment status and lesion characteristics of partner with SCI.

Abbreviations: CHF Swiss Francs, ZBI-s Zarit Burden Interview-short form

*p<0.05; **p<0.01