Table 1.
Baseline Patient Characteristics
| Variable | Sub Category | # Missing | Summary | P-valuea | Statistical Test Useda | ||
|---|---|---|---|---|---|---|---|
| Entire Cohort N = 2106 | ‘Slightly Improved’ + ‘Improved’ Group for Anchor Question 1 N=1093 | ‘No Change’ Group for Anchor Question 1 N=533 | |||||
| Age (years) | Mean (SD) | 0 | 47.5 (16.9) | 46.7 (17.3) | 48.7 (16.4) | <0.05 | t-test |
| - Median (IQR) | - | 48 (33, 61) | 47 (32, 60) | 48 (36, 62) | - | - | |
| - Range | - | (18, 91) | (18, 91) | (18, 90) | - | - | |
| Provider | Provider A | 0 | 460 (22%) | 204 (18.7%) | 147 (26.6%) | <0.05 | Chi-square |
| Provider B | - | 554 (26%) | 318 (29.1%) | 136 (24.6%) | - | - | |
| Provider C | - | 285 (14%) | 130 (11.9%) | 87 (15.7%) | - | - | |
| Provider D | - | 217 (10%) | 117 (10.7%) | 45 (8.1%) | - | - | |
| Provider E | - | 543 (26%) | 291 (26.6%) | 130 (23.5%) | - | - | |
| Provider F | - | 47 (2%) | 33 (3%) | 8 (1.4%) | - | - | |
| Sex | Female | 0 | 1113 (53%) | 551 (50.4%) | 292 (52.8%) | 0.36 | Chi-square |
| Male | - | 993 (47%) | 542 (49.6%) | 261 (47.2%) | - | - | |
| Race | American Indian or Alaska Native | 2 | 22 (1%) | 12 (1.1%) | 6 (1.1%) | 0.63 | Fisher Exact |
| Asian | - | 37 (2%) | 20 (1.8%) | 12 (2.2%) | - | - | |
| Black or African American | - | 32 (2%) | 14 (1.3%) | 11 (2%) | - | - | |
| Choose not to disclose | - | 20 (1%) | 6 (0.5%) | 6 (1.1%) | - | - | |
| Native Hawaiian / Other Pacific Islander | - | 18 (1%) | 11 (1%) | 3 (0.5%) | - | - | |
| Other | - | 182 (9%) | 106 (9.7%) | 45 (8.1%) | - | - | |
| Unknown | - | 1 (0%) | 1 (0.1%) | 0 (0%) | - | - | |
| White or Caucasian | - | 1792 (85%) | 921 (84.4%) | 470 (85%) | - | - | |
| Marital Status | Divorced | 0 | 138 (7%) | 76 (7%) | 33 (6%) | 0.58 | Chi-square |
| Legally Separated | - | 20 (1%) | 9 (0.8%) | 6 (1.1%) | - | - | |
| Life Partner/Domestic Partner | - | 59 (3%) | 35 (3.2%) | 12 (2.2%) | - | - | |
| Married | - | 1183 (56%) | 592 (54.2%) | 328 (59.3%) | - | - | |
| Other | - | 28 (1%) | 17 (1.6%) | 7 (1.3%) | - | - | |
| Single | - | 573 (27%) | 311 (28.5%) | 139 (25.1%) | - | - | |
| Unknown | - | 32 (2%) | 17 (1.6%) | 9 (1.6%) | - | - | |
| Widowed | - | 73 (3%) | 36 (3.3%) | 19 (3.4%) | - | - | |
| Alcohol Use | Never | 190 | 4 (0%) | 1 (0.1%) | 2 (0.4%) | 0.20 | Fisher Exact |
| No | - | 893 (47%) | 464 (46.9%) | 231 (45.4%) | - | - | |
| Not Asked | - | 247 (13%) | 115 (11.6%) | 72 (14.1%) | - | - | |
| Not Currently | - | 1 (0%) | 0 (0%) | 1 (0.2%) | - | - | |
| Yes | - | 771 (40%) | 410 (41.4%) | 203 (39.9%) | - | - | |
| Tobacco Use | Never | 80 | 1430 (71%) | 738 (70%) | 367 (69.1%) | 0.16 | Fisher Exact |
| Not Asked | - | 3 (0%) | 3 (0.3%) | 0 (0%) | - | - | |
| Passive | - | 5 (0%) | 4 (0.4%) | 0 (0%) | - | - | |
| Quit | - | 338 (17%) | 162 (15.4%) | 100 (18.8%) | - | - | |
| Yes | - | 250 (12%) | 147 (13.9%) | 64 (12.1%) | - | - | |
a
Comparisons were made between the ‘No Change’ group on Anchor Question 1 and the combined ‘Slightly Improved’ and ‘Improved’ groups on Anchor Question 1.