Table 1. Demographic characteristics of all samples and herbal medicine (HM) users in community-based surveys in Japan and United States (US).
| All samples, n(%) | HM users, n(%†) | |||
|---|---|---|---|---|
|
|
|
|||
| Japan n = 4129 | US n = 9282 | Japan n = 16 | US n = 345 | |
| Sex | ||||
| Male | 1946 (47.1) | 4445(47.9) | 5(0.3) | 79(1.8) |
| Female | 2183 (52.9) | 4837(52.1) | 11(0.5) | 265(5.5) |
| Age (years old) | ||||
| 20-34 | 958(23.2) | 2921(31.5) | 5(0.5) | 111(3.8) |
| 35-49 | 949(23.0) | 2921(31.5) | 6(0.5) | 148(5.1) |
| 50-64 | 1111(26.9) | 1957(21.1) | 3(0.3) | 74(3.8) |
| 65+ | 1111(26.9) | 1483(16.0) | 2(0.2) | 12(0.8) |
| Education (years) | ||||
| 0-11 years | 1125(27.9) | 1498(16.1) | 4(0.4) | 25(1.7) |
| 12 years | 1419(35.2) | 2993(32.2) | 2(0.1) | 89(3.0) |
| 13-15 years | 764(18.9) | 2568(27.7) | 5(0.6) | 108(4.2) |
| >=16 years | 726(18.0) | 2223(23.9) | 5(0.7) | 122(5.5) |
| Marital status | ||||
| Married/cohabiting | 2844(68.9) | 5182(55.8) | 8(0.3) | 174(3.4) |
| Separated/widowed/divorced | 557(13.5) | 1897(20.4) | 3(0.6) | 76(4.0) |
| Never married | 729(17.6) | 2202(23.7) | 4(0.6) | 95(4.3) |
| Employment | ||||
| Working | 2642(64.0) | 6287(67.7) | 12(0.5) | 269(4.3) |
| Student | 63(1.5) | 295(3.2) | - | 11(3.6) |
| Homemaker | 779(18.9) | 528(5.7) | 2(0.2) | 24(4.5) |
| Retired | 450(10.9) | 1346(14.5) | - | 16(1.2) |
| Other | 194(4.7) | 826(8.9) | 2(0.8) | 25(3.0) |
Samples were weighted to adjust for differential probabilities of selection and post-stratified to match the population distributions on the cross-classification for sex and age.
†
the percentage indicates the proportion of HM users among total respondents for each category.