Table 2. The association between demographic characteristics and overall self-care ability in hemodialysis patients .

Demographic characteristics	Mean (SD)	Statistical test
Age
Under 39	40.5 (4.7)	Chi-square showed a significant correlation between age and self-care (p = 0.02).
39-62	34.5 (6.3)
Over 62	32.3 (4.5)
Sex
Male	36.9 (5.2)	Fisher’s exact test showed a significant correlation between sex and self-care (p = 0.04)
Female	34.4 (7.1)
Marital status
Married	35.5 (5.9)	Chi-square showed a significant correlation between marital status and self-care (p = 0.007).
Single	42 (4.1)
Lost spouse	31.3 (6.3)
Employment status
Unemployed and housekeeper	35.2 (7.1)	Fisher’s exact test showed no significant correlation between employment status and self-care (p = 0.16)
Employed	36.6 (5)
Educational status
Illiterate	32.3 (5.3)	Chi-square showed a significant correlation between educational status and self-care (p = 0.004)
Primary-secondary school	39.2 (5)
High-school & more	41.1 (4.7)
Hemodialysis duration
Less than a year	36 (6.4)	Chi-square showed no significant correlation between hemodialysis duration and self-care (p = 0.7)
1-5 years	35.7 (6.4)
More than 5 years	34.7 (6.6)