Table 1 Patient characteristics for groups A (PSC patients) and B (PC patients) (N = 2692)
Characteristics | Group A (PSC Patients) n = 1363 | Group B (PC Patients) n = 1329 | Chi-square/t-test | p-value |
|---|---|---|---|---|
Age (mean) | t = − 10.45 | p < .001 | ||
Age in years at index (initial visit) | 48 | 54.5* | ||
Sex (%) | 10.06 | p = .002 | ||
Female | 64%* | 58% | ||
Race/ethnicity (%) | 4.07 | p = .91 | ||
White/Caucasian | 95% | 96% | ||
Marital status (%) (n = 2687) | ||||
Cohabiting | 57.5% | 58.3% | 0.199 | p = .655 |
Not cohabiting | 15.1% | 15.1% | ||
Employment status (%) | 55.15 | p < .001 | ||
Employed (FT, PT, self-employed) | 66.7% | 54.1% | ||
Retired | 16.2% | 26.9% | ||
Unemployed | 10.5% | 12.0% | ||
Other (student, unknown) | 6.6% | 6.9% | ||
Primary diagnosis (pain source) at index date—pain source (%) | 1263.12 | p < .001 | ||
Radicular | 7.7% | 17.8% | ||
Disc | 18.3% | 2.6% | ||
Facet or segmental dysfunction | 55.8% | 4.5% | ||
Myofascial | 3.2% | 12.6% | ||
Non-specific back pain | 14.2% | 56.7% | ||
Other | 0.9% | 5.8% | ||
Charlson Comorbidity Score (mean) | 0.63 | 0.95* | t = − 5.46 | p < .001 |