Table 3.
Comparison of clinical features of fibromyalgia between Chinese patients and patients of other race or ethnic groups
| Reference | Jiao | Scudds3 | Zhang24a | Wolfe10b | Ohta25 | Kim26 | Branco27 | Jiao28 |
|---|---|---|---|---|---|---|---|---|
| Country of research | Beijing, China | Hong Kong, China | Beijing, China | USA | Japan | Korea | Europe | USA |
| Date of publication | This report | 2006 | 2017 | 2010 | 2012 | 2012 | 2010 | 2015 |
| ACR criteria | 1990 | 1990 | 2010 | 1990 | 1990 | 1990 | 1990 | 1990 |
| No. of patients | 124 | 7 | 107 | 196 | 498 | 77 | 876 | 939 |
| Age (mean (SD)) | 49.4 (10.8) | 50.1 (15.6) | 37 (NA) | 54.6 (12.9) | 47.3 (12.3) | 49.3 (1.3) | 48.8 (9.8) | 48.6 (12.9) |
| Female gender (n (%)) | 107 (86.3) | 4 (57.1) | 86 (80.4) | 236 (91.8) | 443 (89.0) | 67 (87.0) | 826 (94.3) | 886 (94.4) |
| Male-to-female ratio | 1:6.3 | 1:1.3 | 1:4.1 | 1:5.9 | 1:8.1 | 1:6.7 | 1:27.5 | 1:16.7 |
| TPC (n (%)) | 14.2 (3.0) | 12.9 (1.9) | 9.7 (5.2) | 15.9 (2.3) | NA | 13.7 (0.3) | NA | 16.2 (NA) |
| WPI (mean (SD)) | 10.6 (4.7) | NA | 11.3 (3.8) | 11.4 (4.4) | NA | 10.9 (0.5) | NA | NA |
| SSS (mean (SD)) | 7.5 (2.5) | NA | 7.9 (2.1) | 8.0 (2.6) | NA | 8.4 (0.3) | NA | NA |
| FS (mean (SD)) | 18.1 (5.7) | NA | 19.2 (4.4) | 19.1 (NA) | NA | NA | NA | NA |
| Pain VAS score (mean (SD)) | 55.9 (22.2) | 40.3 (15.3) | 42.7 (18.1) | 65.0 (23.0) | 67.7 (9.6) | 76.0 (1.0) | 65.2 (12.8) | NA |
| BDI-II score (mean (SD)) | 9.4 (6.4) | NA | NA | NA | NA | NA | 10.6 (6.7) | NA |
| FIQ total score (mean (SD)) | 49.7 (15.1) | NA | NA | NA | 52.2 (15.2) | 75.8 (2.2) | 56.9 (11.9) | 62.9 (NA) |
| SF-36 PCS (mean (SD)) | 32.5 (16.7) | NA | 40.5 (NA) | NA | NA | NA | 33.6 (6.8) | 26.8 (NA) |
| SF-36 MCS (mean (SD)) | 48.8 (20.9) | NA | 40.5 (NA) | NA | NA | NA | 46.6 (9.8) | 39.9 (NA) |
ACR American College of Rheumatology, TPC tender point count by physical examination, WPI Widespread Pain Index, SSS Symptom Severity Scale, FS Fibromyalgia Severity Scale, VAS visual analog scale, MAF-GFI Global Fatigue Index of the Multidimensional Assessment of Fatigue, PSQI Pittsburgh Sleep Quality Index scores, BDI-II Beck II Depression Inventory, PSS Perceived Stress Scale, FIQ = Fibromyalgia Impact Questionnaire, SF-36 Short Form-36 Health Status Questionnaire, PCS physical component score, MCS mental component score, NA not available, means studies did not evaluate the specific symptom, except for using Multidimensional Fatigue Inventory (MFI) instead of the MAF-GFI in Branco’s study
aThe scores of the SF-36 PCS and MCS in Zhang’s report were based on a smaller cohort of 86
bThe age and female gender in Wolfe’s report were based on a larger cohort of 258