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Table 3 Associations of age, sex, and education with health conditions at baseline and over time

From: Health conditions in spousal caregivers of people with dementia and their relationships with stress, caregiving experiences, and social networks: longitudinal findings from the IDEAL programme

 

Unadjusted model

Partially adjusted model

Fully adjusted model

Mean intercept

(IRR, 95% CI)

Mean slope

(IRR, 95% CI)

Mean intercept

(IRR, 95% CI)

Mean slope

(IRR, 95% CI)

Mean intercept

(IRR, 95% CI)

Mean slope

(IRR, 95% CI)

Caregivers variables

      

Age group (reference: 70–74)

      

 <65 years

0.71 (0.56; 0.89)

0.98 (0.85; 1.13)

0.70 (0.56; 0.89)

0.98 (0.85; 1.13)

0.68 (0.53; 0.87)

0.98 (0.84; 1.15)

 65–69

0.81 (0.66; 1.00)

0.98 (0.87; 1.11)

0.81 (0.65; 1.00)

0.99 (0.87; 1.12)

0.76 (0.61; 0.95)

0.99 (0.87; 1.14)

 75–79

0.98 (0.81; 1.20)

1.01 (0.90; 1.13)

0.94 (0.77; 1.16)

0.99 (0.88; 1.12)

0.97 (0.78; 1.20)

0.99 (0.87; 1.13)

 ≥80

0.93 (0.76; 1.14)

1.07 (0.84; 1.22)

0.89 (0.72; 1.10)

1.09 (0.96; 1.25)

0.97 (0.77; 1.22)

1.10 (0.95; 1.27)

Sex (reference: female)

      

 Male

1.01 (0.87; 1.17)

0.99 (0.91; 1.08)

1.00 (0.86; 1.17)

0.97 (0.88; 1.06)

1.11 (0.94; 1.32)

0.97 (0.87; 1.07)

Education

      

 No qualification (Reference category)

      

 School leaving certificate age 16

0.90 (0.74; 1.09)

0.98 (0.88; 1.10)

0.96 (0.78; 1.17)

0.98 (0.87; 1.10)

1.01 (0.81; 1.25)

0.99 (0.87; 1.12)

 School leaving certificate age 18

0.86 (0.72; 1.04)

0.98 (0.88; 1.10)

0.87 (0.72; 1.06)

0.98 (0.87;1.10)

0.89 (0.73; 1.09)

0.98 (0.87; 1.12)

 University level education

0.71 (0.58; 0.87)

0.99 (0.88; 1.12)

0.72 (0.58; 0.89)

0.99 (0.87; 1.12)

0.73 (0.59; 0.91)

0.99 (0.86; 1.13)

Hours of care per day

      

 Less than one hour of care per day

0.76 (0.62; 0.92)

1.02 (0.91; 1.14)

0.78 (0.64; 0.95)

1.03 (0.91; 1.16)

0.78 (0.62; 0.99)

1.06 (0.92; 1.23)

 One to ten hours of care per day

0.89 (0.76; 1.04)

1.03 (0.94; 1.13)

0.93 (0.79; 1.09)

1.04 (0.94; 1.15)

0.91 (0.76; 1.08)

1.05 (0.95;1.18)

 More than ten hours of care per day (Reference category)

      

Informant/caregiver-rated variables

      

Functional ability

1.01 (0.93; 1.10)

1.01 (0.96; 1.07)

  

0.93 (0.82; 1.05)

1.02 (0.94; 1.10)

Neuropsychiatric symptoms

1.04 (1.01; 1.07)

1.00 (0.99; 1.02)

  

1.06 (1.02; 1.10)

1.00 (0.98; 1.02)

People with dementia variables

      

Cognition

1.04 (0.99; 1.09)

0.99 (0.96; 1.02)

  

1.08 (1.01; 1.15)

0.99 (0.95; 1.03)

Time since diagnosis

      

 Less than one year (Reference category)

      

 Between one and two years

1.06 (0.91; 1.24)

1.02 (0.91; 1.14)

1.03 (0.88; 1.21)

1.01 (0.92; 1.12)

1.05 (0.89; 1.24)

1.01 (0.91; 1.12)

 Three or more years

1.11 (0.91; 1.37)

1.03 (0.94; 1.13)

1.07 (0.87; 1.32)

0.99 (0.86; 1.13)

1.09 (0.87; 1.36)

0.97 (0.84; 1.12)

  1. Partially adjusted model: age, sex, education, time since diagnosis, baseline hours of care per day. Fully adjusted model: age, sex, education, time since diagnosis, baseline hours of care per day, baseline informant-rated functional ability, neuropsychiatric symptoms, cognition of the person with dementia. Scores for cognition of the person with dementia and informant-rated functional ability have been divided by 10 due to narrow confidence intervals. IRR: incidence rate ratio
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BMC Geriatrics

ISSN: 1471-2318

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