Table 2 Relationship between social position and baseline characteristics before/after weighting the inverse probability of treatment
From: Social participation and mortality: does social position in civic groups matter?
Before weighting the inverse probability of treatment | After weighting the inverse probability of treatment | |||||
|---|---|---|---|---|---|---|
Regular position (%) | Leadership position (%) | P value | Regular position (%) | Leadership position (%) | P value | |
Age | <.0001 | 0.96 | ||||
65–69 | 31.8 | 42.5 | 35.7 | 35.4 | ||
70–74 | 28.3 | 31.9 | 29.6 | 29.4 | ||
75–79 | 23.6 | 18.0 | 21.6 | 21.9 | ||
80–84 | 11.3 | 5.8 | 9.3 | 9.4 | ||
85 or older | 5.0 | 1.8 | 3.8 | 3.9 | ||
Sex | <.0001 | 0.73 | ||||
Female | 57.3 | 41.2 | 51.4 | 51.6 | ||
Male | 42.7 | 58.8 | 48.7 | 48.4 | ||
Annual equivalized household income (JPY) | <.0001 | 0.42 | ||||
<19,999 | 43.7 | 38.3 | 42.0 | 42.9 | ||
20,000–39,999 | 44.6 | 49.3 | 46.1 | 45.3 | ||
≧40,000 | 11.7 | 12.4 | 11.9 | 11.8 | ||
Educational attainment | <.0001 | 0.86 | ||||
Less than 6 years | 4.8 | 2.1 | 3.8 | 4.0 | ||
6–9 years | 57.7 | 50.4 | 55.2 | 55.7 | ||
10–12 years | 28.8 | 33.7 | 30.5 | 30.0 | ||
13 years and more | 8.4 | 13.4 | 10.2 | 10.0 | ||
Other | 0.3 | 0.4 | 0.3 | 0.3 | ||
Marital status | <.0001 | 0.35 | ||||
Married and spouse is alive | 67.9 | 78.9 | 71.9 | 71.3 | ||
Other | 32.1 | 21.1 | 28.1 | 28.7 | ||
Self-reported health | <.0001 | 0.55 | ||||
Very good | 7.0 | 11.3 | 8.7 | 8.5 | ||
Good | 63.9 | 67.8 | 65.3 | 64.8 | ||
Poor | 23.8 | 17.8 | 21.6 | 21.9 | ||
Very poor | 5.2 | 3.1 | 4.4 | 4.8 | ||
Self-reported physical function | <.0001 | 0.31 | ||||
Very good | 11.3 | 17.5 | 13.6 | 13.3 | ||
Good | 67.3 | 68.8 | 67.8 | 67.6 | ||
Poor | 17.4 | 11.7 | 15.3 | 15.4 | ||
Very poor | 3.9 | 2.1 | 3.3 | 3.7 | ||
Self-reported medical conditions | <.0001 | 0.93 | ||||
No illness | 16.1 | 21.1 | 18.0 | 17.8 | ||
Having illness but need no treatment | 9.2 | 12.2 | 10.2 | 10.1 | ||
Having illness but discontinued treatment | 6.5 | 6.1 | 6.4 | 6.4 | ||
Receiving some treatment | 68.3 | 60.6 | 65.4 | 65.8 | ||
Geriatric Depression Scale | <.0001 | 0.58 | ||||
Normal | 63.3 | 76.6 | 68.1 | 67.7 | ||
Mildly depressed | 33.6 | 21.9 | 29.3 | 29.9 | ||
Severely depressed | 3.1 | 1.5 | 2.6 | 2.5 | ||
Residence year | <.0001 | 0.67 | ||||
Less than 10 years | 3.9 | 2.2 | 3.3 | 3.7 | ||
10–19 years | 5.1 | 3.7 | 4.6 | 4.9 | ||
20–29 years | 8.1 | 7.4 | 7.9 | 7.9 | ||
30–39 years | 12.9 | 12.8 | 12.9 | 12.9 | ||
40–49 years | 16.3 | 16.8 | 16.5 | 16.4 | ||
50 years and more | 53.8 | 57.0 | 54.8 | 54.3 | ||