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Table 1 Demographic characteristics of the subjects responding to a questionnaire, Japan, 2010

From: Group involvement and self-rated health among the Japanese elderly: an examination of bonding and bridging social capital

Characteristics Men (N = 4441) Women (N = 6705)
Mean age (SD) 76.13 (6.93) 77.31 (7.54)
Educational attainment (%)   
  Junior high school 2092 (47.11) 2927 (43.65)
  High school 1721 (38.75) 2816 (42.00)
  Some college or more 453 (10.20) 518 (7.73)
  Missing 175 (3.94) 444 (6.62)
Smoking (%)   
  Never/former 3487 (78.52) 5988 (89.31)
  Current 765 (17.23) 104 (1.55)
  Missing 189 (4.26) 613 (9.14)
Alcohol consumption (%)   
  None 1470 (33.10) 4817 (71.84)
  1-3 times/month 510 (11.48) 749 (11.17)
  1-6 times/week 957 (21.55) 566 (8.44)
  Everyday 1451 (32.67) 195 (2.91)
  Missing 53 (1.19) 378 (5.64)
Body mass index (%)   
  <25 kg/m2 3534 (79.58) 5202 (77.58)
  ≥25 kg/m2 740 (16.66) 1106 (16.50)
  Missing 167 (3.76) 397 (5.92)
Live alone (%)   
  Yes 473 (10.65) 1,404 (20.94)
  No 3798 (85.52) 4958 (73.94)
  Missing 170 (3.83) 343 (5.12)
Type-D personality (%)   
  Yes 1853 (41.72) 2674 (39.88)
  No 2138 (48.14) 3084 (46.00)
  Missing 450 (10.13) 947 (14.12)
Self-rated health (%)   
  Good health 3111 (70.05) 4731 (70.56)
  Poor health 1330 (29.95) 1974 (29.44)
  1. SD, standard deviation.