Table 1. Proportion of patients with missing data for each variable.
| Variables | Patients with data | Patients with missing data | |
|---|---|---|---|
| Frequency of visits (per year) | <24 | 272 (19.3) | 43 (3.1) |
| 24–47 | 353 (25.1) | ||
| 48–95 | 539 (38.3) | ||
| ≥96 | 202 (14.3) | ||
| Age (years) | 16–39 | 228 (16.2) | 26 (1.8) |
| 40–59 | 496 (35.2) | ||
| ≥60 | 659 (46.8) | ||
| Sex | Male | 395 (28.0) | 18 (1.3) |
| Female | 996 (70.7) | ||
| Working status | Not working | 698 (49.5) | 54 (3.8) |
| Working | 657 (46.6) | ||
| Location of acupuncture clinic | Rural | 1040 (73.8) | 0 (0) |
| Urban | 369 (26.2) | ||
| Household income (yen) | <3 million | 429 (30.4) | 88 (6.2) |
| 3–4.9 million | 384 (27.3) | ||
| 5–6.9 million | 222 (15.8) | ||
| 7–9.9 million | 176 (12.5) | ||
| ≥10 million | 110 (7.8) | ||
| Education level | Lower than HS | 197 (14.0) | 54 (3.8) |
| HS graduate | 498 (35.3) | ||
| Higher than HS graduate | 660 (46.8) | ||
| Pain | No | 210 (14.9) | 27 (1.9) |
| Yes | 1172 (83.2) | ||
| Treatment costs (yen) | 0–1,000 | 214 (15.2) | 26 (1.8) |
| 1,001–2,000 | 205 (14.5) | ||
| 2,001–3,000 | 287 (20.4) | ||
| 3,001–4,000 | 382 (27.1) | ||
| 4,001–5,000 | 196 (13.9) | ||
| > 5,001 | 99 (7.0) | ||
| Use of conventional medicine | No | 854 (60.6) | 26 (1.8) |
| Yes | 529 (37.5) | ||
| Use of other CAMs | No | 1253 (88.9) | 26 (1.8) |
| Yes | 130 (9.2) | ||
| Trust in the practitioners | Not trust | 95 (6.7) | 9 (0.6) |
| Trust | 614 (43.6) | ||
| Trust very much | 691 (49.0) | ||
| Effectiveness of treatment | Not effective | 221 (15.7) | 23 (1.6) |
| Effective | 768 (54.5) | ||
| Very effective | 397 (28.2) | ||
| Number of symptoms | 1382 (98.1) | 27 (1.9) | |
| Duration of visits (years) | 1366 (96.9) | 43 (3.1) | |
| SF-36 | PCS | 1363 (96.7) | 46 (3.3) |
| MCS | 1363 (96.7) | 46 (3.3) | |
| RCS | 1363 (96.7) | 46 (3.3) |
HS, high school; CAM, complementary and alternative medicine; SF-36, Short-Form 36; PCS, physical component summary; MCS, mental component summary; RCS, role/social component summary.
Data are n (%).