Table 1. Baseline descriptive data.
Healthy Controls | Patients | P-value | |
---|---|---|---|
N = 20 | N = 20 | ||
Demographics | |||
| |||
Age | 29.2 (13.2) | 44.5 (9.2) | < 0.001 |
Sex (% Male) | 50% | 35% | 0.337 |
Race (% Caucasian) | 61% | 95% | 0.022 |
| |||
Pain Phenotype | |||
| |||
Pain Severity (BPI) | 0.1 (0.2) | 6.2 (1.3) | < 0.001 |
Neuropathic pain (PainDETECT) | 0.3 (1.0) | 19.7 (7.4) | < 0.001 |
Fibromyalgia Survey Score | 1.1 (1.2) | 14.2 (7.6) | < 0.001 |
Catastrophizing | 1.5 (2.7) | 17.8 (8.4) | < 0.001 |
Depressive symptoms (HADS) | 0.9 (1.1) | 9.2 (3.8) | < 0.001 |
Anxiety symptoms (HADS) | 1.5 (1.7) | 9.4 (3.7) | < 0.001 |
Fatigue (PROMIS) | 10.1 (1.0) | 24.3 (5.2) | < 0.001 |
Sleep (PROMIS) | 12.3 (3.0) | 33.3 (5.7) | < 0.001 |
The patient group was significantly older and had a higher percentage of Caucasians. As expected, the patient group also reported a significantly worse pain phenotype.
Note: Means and standard deviations are presented for continuous variables, and percentages are presented for dichotomous variables. Mean differences assessed using t-test, and percent differences were assessed using the chi-square test.
BPI = Brief Pain Inventory; HADS = Hospital Anxiety and Depression Scale; PROMIS = Patient Reported Outcomes Measurement Information System.