Health numeracy in Japan: measures of basic numeracy account for framing bias in a highly numerate population

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 yen^b, %)
<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.

ISSN: 1472-6947