Table 2: Demographic and clinical characteristics of the sample.
| Characteristic |
Baseline
(N=76)
|
Follow-up
(N=71)
|
P value* |
| Age (years), mean (SD) |
50.9 (11.3) |
53.2 (11.9) |
N/A |
| Female, n (%) |
68 (89.5) |
63 (88.7) |
N/A |
| Non-Hispanic/Latino, n (%) |
72 (94.7) |
67 (94.4) |
N/A |
| Employed for pay, n (%) |
25 (32.9) |
19 (26.8) |
0.157 |
| Annual household income, n (%) |
|
|
0.335 |
| Under $20,000 |
19 (25.0) |
24 (33.8) |
|
| $20,000 to $44,999 |
26 (34.2) |
17 (23.9) |
|
| $45,000 to $64,999 |
11 (14.5) |
10 (14.1) |
|
| $65,000 to $89,999 |
11 (14.5) |
14 (19.7) |
|
| $90,000 to $124,999 |
6 (7.9) |
3 (4.2) |
|
| $125,000 or more |
3 (3.9) |
3 (4.2) |
|
| Health insurance, n (%) |
58 (76.3) |
59 (83.1) |
0.157 |
| Prescription drug insurance, n (%) |
58 (76.3) |
57 (80.3) |
0.317 |
| Body mass index, n (%) |
|
|
0.172 |
| Underweight (< 18.50 kg/m2) |
3 (3.9) |
0 (0.0) |
|
| Normal (18.50 to 24.99 kg/m2) |
14 (18.4) |
13 (18.3) |
|
| Overweight (25.00 to 29.99 kg/m2) |
12 (15.8) |
17 (23.9) |
|
| Obese (≥ 30 kg/m2) |
47 (61.8) |
41 (57.7) |
|
| Time since fibromyalgia diagnosis (years), mean (SD)†
|
4.1 (7.0) |
6.2 (7.0) |
N/A |
| Number of comorbid conditions,‡ mean (SD) |
5.1 (2.9) |
4.8 (2.6) |
0.240 |
Abbreviations: N/A, not applicable; SD, standard deviation.
* While descriptive statistics are provided for all available patients, P values are only presented for the 71 patients who completed these questions at both time points, where applicable.
†N=76 at Baseline and Follow-up. Patients who reported being diagnosed prior to Baseline were reevaluated by the site physician to confirm FM diagnosis. If the prior diagnosis was confirmed, the patient-reported month and year of the initial diagnosis was used. For patients diagnosed for the first time at Baseline (N=44), time since diagnosis was 0.0 months.
‡For those patients with at least one: N=73 at Baseline and N=67 at Follow-up. Patients answered the following question regarding FM-related comorbid conditions: “Please indicate if you have been diagnosed or are currently being treated for any of the following conditions and symptoms.” Listed FM-related comorbid conditions included arthritis, depression, irritable bowel syndrome, and sleep apnea, among others.