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Table 1 Sociodemographics and health characteristics as a function of caregiver status

From: Impact of caring for persons with Alzheimer’s disease or dementia on caregivers’ health outcomes: findings from a community based survey in Japan

  Non-caregivers (n = 53758) Caregivers (n = 1302) Total (n = 55060)
Mean/% SD/n Mean/% SD/n Mean/% SD/n
Age of the respondent: mean 47.53 15.66 52.63* 13.89 47.65 15.64
Age: category 18–29 17.1 % 9191 11.2 % 146* 17.0 % 9337
30–39 18.7 % 10045 8.8 % 114* 18.5 % 10159
40–49 17.9 % 9635 10.8 % 140* 17.8 % 9775
50–64 25.6 % 13765 46.2 % 602* 26.1 % 14367
≥65 20.7 % 11122 23.0 % 300* 20.7 % 11422
Gender Female 49.2 % 26425 53.0 % 690* 49.2 % 27115
Male 50.8 % 27333 47.0 % 612* 50.8 % 27945
BMI category Underweight 11.0 % 5910 9.8 % 128 11.0 % 6038
Normal weight 67.9 % 36486 68.7 % 894 67.9 % 37380
Overweight 14.7 % 7909 16.4 % 214 14.8 % 8123
Obese 2.7 % 1433 3.1 % 41 2.7 % 1474
Unknown 3.8 % 2020 1.9 % 25* 3.7 % 2045
Exercise frequency (20+ minutes) in past month 0–11 times 83.6 % 44933 80.6 % 1050* 83.5 % 45983
≥12 times 16.4 % 8825 19.4 % 252* 16.5 % 9077
Alcohol use per week ≤ once 61.6 % 33131 54.6 % 711* 61.5 % 33842
≥2–3 times 38.4 % 20627 45.4 % 591* 38.5 % 21218
Smoke cigarettes No 79.7 % 42842 74.9 % 975* 79.6 % 43817
Yes 20.3 % 10916 25.1 % 327* 20.4 % 11243
Marital status Single 30.2 % 16252 22.9 % 298* 30.1 % 16550
Married/living with partner 62.4 % 33519 68.2 % 888* 62.5 % 34407
Divorced/separated/widowed > 1 year 7.0 % 3777 8.2 % 107 7.1 % 3884
Divorced/separated/widowed ≤ 1 year 0.4 % 210 0.7 % 9 0.4 % 219
CCI: mean score 0.136 0.47 0.369* 1.67 0.14 0.53
CCI: category 0 89.3 % 48022 80.8 % 1052* 89.1 % 49074
1 8.5 % 4556 13.5 % 176* 8.6 % 4732
2 1.7 % 906 3.1 % 40* 1.7 % 946
>3 0.5 % 274 2.6 % 34* 0.6 % 308
Health insurance None of the above 3.2 % 1731 1.5 % 19* 3.2 % 1750
National/Social/Late Stage Elderly 96.8 % 52027 98.5 % 1283* 96.8 % 53310
Types of current medical insurance National Health Insurance 44.9 % 24142 50.1 % 652* 45.0 % 24794
Social Insurance 48.7 % 26207 45.9 % 598* 48.7 % 26805
Late Stage Elderly Insurance 1.5 % 780 1.1 % 14 1.4 % 794
Other 1.7 % 898 1.5 % 19 1.7 % 917
None of the above 3.2 % 1731 1.5 % 19* 3.2 % 1750
Education: college or above High school or lower 36.6 % 19651 33.3 % 433* 36.5 % 20084
College or above 63.4 % 34107 66.7 % 869* 63.5 % 34976
Highest level of education completed or highest degree received Elementary School 0.2 % 121 0.3 % 4 0.2 % 125
Junior High School 2.5 % 1346 2.0 % 26 2.5 % 1372
High School 33.8 % 18184 31.0 % 403* 33.8 % 18587
2 Year College 15.6 % 8385 15.9 % 207 15.6 % 8592
4 Year College 42.7 % 22966 45.2 % 588 42.8 % 23554
Graduate School 5.1 % 2756 5.7 % 74 5.1 % 2830
Employment status Not employed, disabled, retired, student, or homemaker 40.5 % 21790 43.8 % 570* 40.6 % 22360
Full-time, part-time, or self-employed 59.5 % 31968 56.2 % 732* 59.4 % 32700
Income < ¥3,000,000 18.6 % 10012 18.0 % 234 18.6 % 10246
¥3,000,000 to < ¥5,000,000 26.1 % 14014 23.3 % 303* 26.0 % 14317
¥5,000,000 to < ¥8,000,000 25.2 % 13564 25.5 % 332 25.2 % 13896
≥ ¥8,000,000 20.3 % 10937 27.3 % 356* 20.5 % 11293
Declined to answer 9.7 % 5231 5.9 % 77* 9.6 % 5308
Children (<18) in household 0 75.1 % 40376 79.3 % 1032* 75.2 % 41408
1 13.1 % 7038 12.3 % 160 13.1 % 7198
2 9.5 % 5125 6.6 % 86* 9.5 % 5211
≥3 2.3 % 1219 1.8 % 24 2.3 % 1243
  1. Caregivers were defined as those currently caring for an adult relative with Alzheimer’s disease or dementia, whereas non-caregivers were those not currently caring for an adult relative with any listed condition
  2. BMI body mass index, CCI Charlson comorbidity index, SD standard deviation
  3. *p < 0.05 for the two-tailed significance of differences across caregivers and non-caregivers within a given row