Table 1 Baseline characteristics of the subjects and incidence rate of functional disability: the Aichi Gerontological Evaluation Study (AGES), Aichi, Japan, 2003–2006
Baseline characteristicsMen (4061 respondents)Incidence rateWomen (3612 respondents)Incidence rate
NIncidence/person–yearNIncidence/person–year
Age (years)
    65–742900234/83680.0282464157/71670.022
    75+1161270/30880.0871148275/30490.090
Marital status
    Married3660420/10 3710.0402205182/63570.029
    Divorced/separated33569/9080.0761267228/34690.066
    Never married224/580.0698919/2390.079
    Other154/410.097110/330.000
Household equivalised income* (ranges in million Japanese yen)
    Quartile 1 (0.88–1.57)809139/22160.0631032152/28870.053
    Quartile 2 (1.58–2.46)1118129/31620.04187390/24940.036
    Quartile 3 (2.47–3.17)992123/28060.04472966/20860.032
    Quartile 4 (3.18–10.66)1142113/32720.035978124/27500.045
    Mean (SD)2.53 (1.35)2.38 (1.46)
Educational attainment
    9 years or less2225312/62330.0502213276/62400.044
    10+ years1804188/51360.0371364150/38810.039
Medical care utilisation
    None (no health problems)119889/34780.02690768/26300.026
    Have health problems but not have medical care by patient choice23326/6620.03923824/6820.035
    Have regular medical care2505375/69620.0542314324/64670.050
Smoking
    Never1104136/31130.0443317388/93950.041
    Ever1900243/53520.0459815/2680.056
    Current944107/26780.0408218/2230.081
Alcohol consumption
    None1674286/45880.0623104392/87450.045
    Drink 35 g/day of alcohol or less1976180/56850.03244631/12960.024
    Drink >35 g alcohol/day36430/10540.02872/190.104
Health check-up
    Yes: in last 2–3 years2685251/76950.0332472224/71140.031
    Yes: 4+ years ago597111/16300.06833343/9390.046
    Never684117/18840.062699152/18500.082
Relative deprivation defined by geographical area (municipality) of residence (ranges ×1000)
    Quartile 1 (0–284)103999/29800.033871114/24370.047
    Quartile 2 (285–610)1059124/30140.04183575/23990.031
    Quartile 3 (611–1055)1090135/30630.04484891/24150.038
    Quartile 4 (1056–2579)873146/24000.0611058152/29650.051
    Mean (SD)702 (534)813 (639)
Relative deprivation defined by age group (ranges ×1000)
    Quartile 1 (0–274)105393/30350.031916112/25770.043
    Quartile 2 (275–563)1092142/30760.04678879/22480.035
    Quartile 3 (564–1023)1042116/29560.03983983/24030.035
    Quartile 4 (1024–2370)874153/23890.0641069158/29890.053
    Mean (SD)705 (534)818 (642)
Relative deprivation defined by educational attainment (ranges ×1000)
    Quartile 1 (0–292)1007105/28800.036894122/24900.049
    Quartile 2 (293–631)995114/28280.04078667/22650.030
    Quartile 3 (632–1031)1149131/32560.04081788/23340.038
    Quartile 4 (1032–2706)878150/24050.0621080149/30310.049
    Mean (SD)696 (521)789 (626)
  • *100 yen  = US$0.95 in September 2008.