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Table 1 Mortality rates by baseline characteristics (N=10,271)

From: Social participation and mortality: does social position in civic groups matter?

 

n

(%)

Incidence/person year

Incidence rate per 1000 person-years (95 % CI)

Age

    

 65–69

3680

36 %

139/14,441

9.6 (8.2–11.4)

 70–74

3046

30 %

160/11,855

13.5 (11.6–15.7)

 75–79

2205

21 %

196/8446

23.2 (20.2–26.6)

 80–84

948

9 %

143/3510

40.7 (34.7–47.8)

 85 or older

392

4 %

115/1355

84.9 (71.3–101.1)

Sex

    

 Female

5261

51 %

255/20,498

12.4 (11.0–14.1)

 Male

5010

49 %

498/19,108

26.1 (23.9–28.4)

Annual equivalized household income (JPY)

    

 <19,999

3304

32 %

240/12,746

18.8 (16.6–21.3)

 20,000–39,999

3880

38 %

292/14,940

19.5 (17.4–21.9)

40,000

1023

10 %

55/3981

13.8 (10.6–18.0)

 Missing

2064

20 %

166/7939

20.9 (18.0–24.3)

Educational attainment

    

 Less than 6 years

381

4 %

53/1418

37.4 (28.7–48.7)

 6–9 years

5298

52 %

411/20,435

20.1 (18.3–22.1)

 10–12 years

2964

29 %

175/11,494

15.2 (13.1–17.6)

 13 years and more

1002

10 %

61/3857

15.8 (12.3–20.3)

 Other

33

0 %

5/117

42.7 (18.1–100.7)

 Missing

593

6 %

48/2285

21.0 (15.9–27.8)

Marital status

    

 Married and spouse is alive

6932

67 %

473/26,825

17.6 (16.1–19.3)

 Other

2670

26 %

220/10,213

21.5 (18.9–24.5)

 Missing

669

7 %

60/2568

23.4 (18.2–30.0)

Self-reported health

    

 Very good

861

8 %

36/3377

10.7 (7.7–14.8)

 Good

6542

64 %

353/25,485

13.9 (12.5–15.4)

 Poor

2126

21 %

237/8057

29.4 (25.9–33.3)

 Very poor

438

4 %

101/1533

65.9 (54.6–79.6)

 Missing

304

3 %

26/1154

22.5 (15.4–32.9)

Self-reported physical function

    

 Very good

1373

13 %

68/5372

12.7 (10.0–16.0)

 Good

6844

67 %

406/26,562

15.3 (13.9–16.8)

 Poor

1522

15 %

192/5721

33.6 (29.2–38.6)

 Very poor

329

3 %

69/1180

58.5 (46.5–73.5)

 Missing

203

2 %

18/771

23.3 (14.8–36.9)

Self-reported medical conditions

    

 No illness

1707

17 %

67/6709

10.0 (7.9–12.7)

 Having illness but need no treatment

987

10 %

74/3817

19.4 (15.5–24.3)

 Having illness but discontinued treatment

627

6 %

37/2438

15.2 (11.0–20.9)

 Receiving some treatment

6323

62 %

537/24,210

22.2 (20.4–24.1)

 Missing

627

6 %

38/2433

15.6 (11.4–21.4)

Geriatric Depression Scale

    

 Normal

6109

59 %

339/23,803

14.2 (12.8–15.8)

 Mildly depressed

1944

19 %

192/7387

26.0 (22.6–29.9)

 Severely depressed

348

3 %

49/1283

38.2 (29.0–50.3)

 Missing

1870

18 %

173/7133

24.3 (20.9–28.1)

Residence year

    

 Less than 10 years

316

3 %

20/1205

16.6 (10.7–25.6)

 10–19 years

439

4 %

27/1670

16.2 (11.1–23.5)

 20–29 years

760

7 %

53/2926

18.1 (13.9–23.7)

 30–39 years

1237

12 %

67/4814

13.9 (11.0–17.7)

 40–49 years

1593

16 %

82/6207

13.2 (10.7–16.4)

 50 years and more

5648

55 %

473/21,713

21.8 (19.9–23.8)

 Missing

278

3 %

31/1072

28.9 (20.4–40.9)

Social participation

    

 Regular position in the social organization(s)

5928

58 %

479/22,718

21.1 (19.3–23.0)

 Leadership position in one or more social organization(s)

3600

35 %

214/14,014

15.3 (13.4–17.4)

 Missing

743

7 %

60/2874

20.9 (16.3–26.8)