Table 3 Analysis of death risk using the Cox proportion regression model

Sex (male = 1, female = 0)

1.49–3.20

<0.01

Age (per 1 year)

1.05–1.07

<0.001

Marital status (married = 1, unmarried = 0)

1.83–2.71

<0.001

Marital status (widowed = 1, unmarried = 0)

1.10–2.70

0.04

Census registration (hospital^a = 1, non-hospital = 0)

1.03–1.52

0.02

Comorbidity of neoplasms (yes = 1, no = 0)

1.06–1.86

0.02

Participation in sheltered or supported employment (yes = 1, no = 0)

0.16–0.28

<0.001