Table 1

Characteristics of the study sample (n = 300)
n = 300
Age (range, 20–69: % for each decade) 20
Gender (% women) 50
Education (% low attainment) 55
Household income (million yenb, %)
 <3 20
 3 ≤ 5 21
 3 ≤ 8 32
  ≥8 18
Hospital use (last year, % occasional or often) 53
TAIMI scores
 all (possible range 0–7, mean ± SD) 4.7 ± 1.7
 num (possible range 0–3, median ± IQR) 2.0 ± 2.0

aEducation, low attainment (high school or lower); high attainment (higher than high school).

b1 million yen was about 12,000 U.S. dollars at the time of the study.

Okamoto et al.

Okamoto et al. BMC Medical Informatics and Decision Making 2012 12:104   doi:10.1186/1472-6947-12-104

Open Data