Table 4.
Demographic characteristics at baseline (day 1)
| Characteristic | Total (clinical) sample (N = 202) |
|---|---|
| Age | |
| Mean (SD) | 46.3 (14.4) |
| Min–Max | 18.0–79.0 |
| Gender | |
| Female, n (%) | 132 (65.3) |
| Race | |
| White/Caucasian, n (%) | 122 (60.4) |
| Black/African-American, n (%) | 38 (18.8) |
| Native Hawaiian/Pacific Islander, n (%) | 3 (1.5) |
| Other, n (%) | 39 (19.3) |
| Ethnicity | |
| Not Hispanic/Latino, n (%) | 176 (87.1) |
| Hispanic/Latino, n (%) | 26 (12.9) |
| Education | |
| High school diploma (or GED) or less, n (%) | 45 (22.3) |
| Some college or certification program, n (%) | 81 (40.1) |
| College or university degree (2- or 4-year), n (%) | 56 (27.7) |
| Graduate degree, n (%) | 16 (7.9) |
| Other, n (%) | 2 (1.0) |
| Missing/No response, n (%) | 2 (1.0) |
| Patient rating of current severity of diarrhea-specific IBS | |
| Very mild, n (%) | 5 (2.5) |
| Mild, n (%) | 46 (22.8) |
| Moderate, n (%) | 106 (52.5) |
| Severe, n (%) | 44 (21.8) |
| Very severe, n (%) | 1 (0.5) |