TABLE 1.
Demographic characteristics by presence or absence of IC/BPS
| Group | Total sample (N = 202) |
Chronic pain (n = 137) |
IC/BPS+ (n = 64) |
|||||
|---|---|---|---|---|---|---|---|---|
| Demographics | M | SD | M | SD | M | SD | t | P |
| Age | 44.89 | 14.23 | 47.04 | 14.00 | 40.14 | 13.73 | 3.25 | 0.001 |
| n | % | n | % | n | % | χ2 | P | |
| Gender | 6.11 | 0.01 | ||||||
| Women | 161 | 79.7 | 104 | 75.9 | 56 | 87.5 | ||
| Men | 36 | 17.8 | 31 | 22.6 | 5 | 7.8 | ||
| Unknown | 5 | 2.5 | 2 | 1.5 | 3 | 4.7 | ||
| Race | 4.81 | 0.68 | ||||||
| African American, Black | 17 | 8.4 | 11 | 8.0 | 6 | 9.4 | ||
| Asian/Pacific Islander | 4 | 2.0 | 3 | 2.2 | 1 | 1.6 | ||
| Hispanic, Latina/o | 5 | 2.5 | 3 | 2.2 | 2 | 3.1 | ||
| Native American/American Indian | 1 | 0.5 | 1 | 0.7 | 0 | 0.0 | ||
| White | 164 | 81.2 | 113 | 82.5 | 50 | 78.1 | ||
| Multiracial | 6 | 3.0 | 2 | 1.5 | 4 | 6.3 | ||
| Other | 4 | 1.9 | 3 | 2.2 | 1 | 1.6 | ||
| Unknown | 1 | 0.5 | 1 | 0.7 | 0 | 0.0 | ||
| Relationship status | 9.01 | 0.06 | ||||||
| Single | 53 | 26.2 | 31 | 22.6 | 22 | 34.4 | ||
| Married/domestic partnership | 108 | 53.5 | 82 | 59.9 | 25 | 39.1 | ||
| Divorced | 36 | 17.8 | 20 | 14.6 | 16 | 25.0 | ||
| Separated | 4 | 2.0 | 3 | 2.2 | 1 | 1.6 | ||
| Widowed | 1 | 0.5 | 1 | 0.7 | 0 | 0.0 | ||
| Educational attainment | 1.47 | 0.96 | ||||||
| High school diploma or equivalent | 15 | 7.4 | 10 | 7.3 | 5 | 7.8 | ||
| Vocational or technical school | 8 | 4.0 | 5 | 3.6 | 3 | 4.7 | ||
| Some college | 40 | 19.8 | 26 | 19.0 | 13 | 20.3 | ||
| Bachelor’s degree | 70 | 34.7 | 49 | 35.8 | 21 | 32.8 | ||
| Master’s degree | 44 | 21.8 | 29 | 21.2 | 15 | 23.4 | ||
| Doctorate or professional degree | 17 | 8.4 | 11 | 8.0 | 6 | 9.4 | ||
| Other | 7 | 3.5 | 6 | 4.4 | 1 | 1.6 | ||
| Unknown | 1 | 0.5 | 1 | 0.7 | 0 | 0.0 | ||
| Employment status | 7.33 | 0.20 | ||||||
| Full-time | 106 | 52.5 | 74 | 54.0 | 32 | 50.0 | ||
| Part-time | 18 | 8.9 | 12 | 8.8 | 6 | 9.4 | ||
| Self-employed | 9 | 4.5 | 8 | 5.8 | 1 | 1.6 | ||
| Unemployed | 10 | 5.0 | 5 | 3.6 | 5 | 7.8 | ||
| Retired | 20 | 9.9 | 16 | 11.7 | 4 | 6.3 | ||
| Unable to work | 37 | 18.3 | 20 | 14.6 | 16 | 25.0 | ||
| Unknown | 2 | 1.0 | 2 | 1.5 | 0 | 0.0 | ||
| Income | 14.71 | 0.02 | ||||||
| Under $10000 | 8 | 4.0 | 3 | 2.2 | 5 | 7.8 | ||
| $10 000–19 999 | 16 | 7.9 | 8 | 5.8 | 8 | 12.5 | ||
| $20 000–$50 000 | 48 | 23.8 | 29 | 21.2 | 19 | 29.7 | ||
| $50 000–$100 000 | 55 | 27.2 | 43 | 31.4 | 11 | 17.2 | ||
| $100 000–$150 000 | 36 | 17.8 | 27 | 19.7 | 9 | 14.1 | ||
| $150 000 or higher | 15 | 7.4 | 13 | 9.5 | 2 | 3.1 | ||
| Unknown | 24 | 11.9 | 14 | 10.2 | 10 | 15.6 | ||
| Disability status | 9.45 | 0.009 | ||||||
| Currently receiving disability | 33 | 16.3 | 24 | 17.5 | 8 | 12.5 | ||
| In the process of applying for disability | 16 | 7.9 | 5 | 3.6 | 11 | 17.2 | ||
| Not receiving or applying for disability | 113 | 55.9 | 75 | 54.7 | 38 | 59.4 | ||
| Unknown | 40 | 19.8 | 32 | 23.4 | 7 | 10.9 | ||
M, mean; SD, standard deviation; n, frequency of demographic characteristic; %, percentage of subgroup. Statistical tests evaluate differences in distributions of each demographic variable by IC/BPS group. Fisher’s exact test P-values reported (two-tailed test) for all chi-square analyses. Significant tests at P < 0.01 are denoted by bold font.