Table 1.
Baseline demographic and clinical characteristics of intervention arm participants who qualified for structured problem solving
| Demographics | Completed SPS (n = 147) |
Declined SPS (n = 36) |
Disengaged SPS (n = 92) |
|---|---|---|---|
| Age in years median (25th − 75th percentiles), n | 41 (25–54), 147 | 40 (28–60), 36 | 40 (30–57), 92 |
| Female sex (n/N (%)) | 95 / 147 (64.6%) | 24 / 36 (66.7%) | 49 / 92 (53.3%) |
| Male sex (n/N (%)) | 52 / 147 (35.4%) | 12 / 36 (33.3%) | 43 / 92 (46.7%) |
| Race (n/N (%))* | |||
| White | 126 / 147 (85.7%) | 32 / 36 (88.9%) | 82 / 92 (89.1%) |
| Black or African American | 15 / 147 (10.2%) | 2 / 36 (5.6%) | 8 / 92 (8.7%) |
| American Indian or Alaska Native | 0 / 147 (0.0%) | 0 / 36 (0.0%) | 0 / 92 (0.0%) |
| Asian | 2 / 147 (1.4%) | 0 / 36 (0.0%) | 0 / 92 (0.0%) |
|
Native Hawaiian or Other Pacific Islander |
0 / 147 (0.0%) | 0 / 36 (0.0%) | 1 / 92 (1.1%) |
| Other | 3 / 147 (2.0%) | 2 / 36 (5.6%) | 0 / 92 (0.0%) |
| Unknown | 0 / 147 (0.0%) | 0 / 36 (0.0%) | 0 / 92 (0.0%) |
| Multiracial | 1 / 147 (0.7%) | 0 / 36 (0.0%) | 1 / 92 (1.1%) |
| Ethnicity (n/N (%)) | |||
| Not Hispanic or Latino | 132 / 147 (89.8%) | 33 / 36 (91.7%) | 81 / 92 (88.0%) |
| Hispanic or Latino | 10 / 147 (6.8%) | 1 / 36 (2.8%) | 7 / 92 (7.6%) |
| Not reported | 5 / 147 (3.4%) | 1 / 36 (2.8%) | 3 / 92 (3.3%) |
| Unknown | 0 / 147 (0.0%) | 1 / 36 (2.8%) | 1 / 92 (1.1%) |
| Household Income (n/N (%)) | |||
| Less than $90,000 | 59 / 147 (40.1%) | 17 / 36 (47.2%) | 35 / 92 (38.0%) |
| $90,000 or more | 60 / 147 (40.8%) | 17 / 36 (47.2%) | 39 / 92 (42.4%) |
| Other* | 28 / 147 (19.0%) | 2 / 36 (5.6%) | 18 / 92 (19.6%) |
| Employment Status (n/N (%)) | |||
| Working full-time | 82 / 147 (55.8%) | 19 / 36 (52.8%) | 56 / 92 (60.9%) |
| Working part-time | 10 / 147 (6.8%) | 2 / 36 (5.6%) | 2 / 92 (2.2%) |
| Unemployed/looking for work | 5 / 147 (3.4%) | 0 / 36 (0.0%) | 2 / 92 (2.2%) |
| Stay at home full time | 6 / 147 (4.1%) | 2 / 36 (5.6%) | 5 / 92 (5.4%) |
| Retired | 11 / 147 (7.5%) | 5 / 36 (13.9%) | 8 / 92 (8.7%) |
| Temporarily laid off/sick leave | 1 / 147 (0.7%) | 0 / 36 (0.0%) | 2 / 92 (2.2%) |
| Permanently disabled | 3 / 147 (2.0%) | 0 / 36 (0.0%) | 2 / 92 (2.2%) |
| Student | 29 / 147 (19.7%) | 8 / 36 (22.2%) | 13 / 92 (14.1%) |
| Other** | 0 / 147 (0.0%) | 0 / 36 (0.0%) | 2 / 92 (2.2%) |
| Highest Education Level (n/N (%)) | |||
| Less than high school degree | 22 / 147 (15.0%) | 5 / 36 (13.9%) | 12 / 92 (13.0%) |
| High school graduate | 8 / 147 (5.4%) | 4 / 36 (11.1%) | 9 / 92 (9.8%) |
| Some college or associates degree | 30 / 147 (20.4%) | 18 / 36 (50.0%) | 21 / 92 (22.8%) |
| Bachelor’s degree | 45 / 147 (30.6%) | 2 / 36 (5.6%) | 27 / 92 (29.3%) |
| Master’s or higher professional degree | 39 / 147 (26.5%) | 7 / 36 (19.4%) | 21 / 92 (22.8%) |
| Prefer not to answer | 3 / 147 (2.0%) | 0 / 36 (0.0%) | 2 / 92 (2.2%) |
| Primary Health Care Insurance (n/N (%)) | |||
| Private | 122 / 147 (83.0%) | 23 / 36 (63.9%) | 70 / 92 (76.1%) |
| Medicare | 11 / 147 (7.5%) | 5 / 36 (13.9%) | 11 / 92 (12.0%) |
| Medicaid | 10 / 147 (6.8%) | 2 / 36 (5.6%) | 6 / 92 (6.5%) |
| Military Health Care | 0 / 147 (0.0%) | 4 / 36 (11.1%) | 2 / 92 (2.2%) |
| State Specific | 1 / 147 (0.7%) | 0 / 36 (0.0%) | 1 / 92 (1.1%) |
| Indian Health Service | 0 / 147 (0.0%) | 0 / 36 (0.0%) | 0 / 92 (0.0%) |
| Uninsured | 2 / 147 (1.4%) | 1 / 36 (2.8%) | 2 / 92 (2.2%) |
| Other** | 1 / 147 (0.7%) | 1 / 36 (2.8%) | 0 / 92 (0.0%) |
| Body Composition, median (25th − 75th percentiles), n | |||
| Weight (lbs) | 170.0 (141.0–198.0), 147 | 191.5 (154.2–248.0), 36 | 176.0 (150.0–206.5), 92 |
| Height (in) | 66.00 (63.74–68.00), 146 | 66.00 (63.00–70.00), 35 | 66.69 (64.00–70.00), 92 |
| Body mass index (kg/m2) | 27.28 (23.72–31.35), 146 | 29.56 (26.57–37.51), 35 | 27.91 (23.20–31.97), 92 |
| Kidney stone occurrence (n/N (%)) | |||
| First stone | 55/147 (37.4%) | 14/36 (38.9%) | 37/92 (40.2%) |
| Recurrent stone | 92/147 (62.6%) | 22/36 (61.1%) | 55/92 (59.8%) |
| Diabetes mellitus (n/N (%)) | 8 / 147 (5.4%) | 5 / 36 (13.9%) | 10 / 92 (10.9%) |
| Hypertension (n/N (%)) | 21 / 147 (14.3%) | 3 / 36 (8.3%) | 18 / 92 (19.6%) |
| Kidney disease - not stone related (n/N (%)) | 2 / 147 (1.4%) | 0 / 36 (0.0%) | 1 / 92 (1.1%) |
| Myocardial infarction (n/N (%)) | 1 / 147 (0.7%) | 2 / 36 (5.6%) | 1 / 92 (1.1%) |
| Obesity (n/N (%)) | 13 / 147 (8.8%) | 6 / 36 (16.7%) | 8 / 92 (8.7%) |
| Study follow-up time in days, median (25th − 75th percentiles), n | 731 (660–768), 147 | 713 (418–740), 36 | 733 (651, 763), 92 |
* Includes don’t know and prefer not to answer
** Includes other and prefer not to answer