Table 1.
Sociodemographic characteristics per Fibromyalgia Impact Questionnaire-Revised (FIQR) calculator-derived cluster.
| Sociodemographic Characteristics | Cluster 1 | Cluster 2 | Cluster 3 | Cluster 4 | p Value |
|---|---|---|---|---|---|
| Gender, N of females (%) | 1038 (95.2%) | 1466 (96.6%) | 1447 (96.7%) | 2118 (97.3%) | 0.009 |
| Age, M (SD) | 53.30 (11.78) | 52.77 (11.06) | 51.81 (10.67) | 51.34 (9.80) | <0.001 |
| Marital status, N of married (%) | 623 (72.4%) | 831 (72.1%) | 750 (68.9%) | 1049 (65.7%) | 0.001 |
| Education, N (%) | <0.001 | ||||
| Less than high school | 1 (0.1%) | 1 (0.1%) | 3 (0.3%) | 5 (0.3%) | |
| High school graduate | 75 (8.7%) | 96 (8.3%) | 115 (10.6%) | 252 (15.2%) | |
| College/trade school | 247 (28.7%) | 402 (34.9%) | 482 (44.3%) | 789 (49.4%) | |
| Bachelor’s degree | 313 (36.4%) | 409 (35.5%) | 327 (30.1%) | 420 (26.3%) | |
| Postgraduate | 224 (26%) | 244 (21.2%) | 161 (14.8%) | 140 (8.8%) | |
| Years of Fibromyalgia (FM) diagnosis, M (SD) | 12.59 (7.77) | 12.15 (7.54) | 11.70 (7.30) | 11.58 (7.63) | 0.007 |