Table 3 Baseline characteristics of completers and noncompleters
Short-term completer* N = 223 | Short-term noncompleter N = 47 | p-value | 2-year completer N = 137 | 2-year noncompleter N = 133 | p-value | |
|---|---|---|---|---|---|---|
Age (years) | 50 ± 8 | 46 ± 9 | 0.0033 | 51 ± 8 | 47 ± 8 | 0.0002 |
Race/ethnicity | 0.6995 | 0.0490 | ||||
NonHispanic White | 190 (85%) | 39 (83%) | 122 (89%) | 107 (80%) | ||
Other | 33 (15%) | 8 (17%) | 15 (11%) | 26 (20%) | ||
Education (missing = 2) | 0.0644 | 0.6864 | ||||
High school or less | 8 (4%) | 1 (2%) | 4 (3%) | 5 (4%) | ||
Some college | 34 (15%) | 14 (30%) | 24 (18%) | 24 (18%) | ||
College graduate | 102 (46%) | 14 (30%) | 64 (47%) | 52 (40%) | ||
Professional degree | 78 (35%) | 17 (37%) | 45 (33%) | 50 (38%) | ||
Employment (missing = 5) | 0.0880 | 0.4907 | ||||
Employed | 181 (83%) | 33 (72%) | 106 (79%) | 108 (83%) | ||
Retired/keeping house/other | 38 (17%) | 13 (28%) | 28 (21%) | 23 (18%) | ||
Insurance group | 0.4122 | 0.1119 | ||||
Healthy Blue Living | 215 (96%) | 44 (94%) | 134 (98%) | 125 (94%) | ||
Other | 8 (4%) | 3 (6%) | 3 (2%) | 8 (6%) | ||
Body Mass Index (kg/m 2 ) | 40 ± 5 | 43 ± 7 | 0.0177 | 40 ± 5 | 42 ± 6 | 0.0015 |
EQ-5D (missing = 3) | 0.84 ± 0.13 | 0.82 ± 0.14 | 0.3662 | 0.85 ± 0.12 | 0.82 ± 0.14 | 0.0745 |
Mobility limitations | 58 (26%) | 10 (21%) | 0.4675 | 36 (27%) | 32 (24%) | 0.6494 |
Self-care limitations | 7 (3%) | 0 | 0.6103 | 4 (3%) | 3 (2%) | 0.7242 |
Usual activities | 52 (24%) | 12 (26%) | 0.7823 | 32 (24%) | 32 (24%) | 0.9179 |
Pain | 141 (64%) | 33 (70%) | 0.4239 | 87 (64%) | 87 (66%) | 0.8017 |
Anxiety/depression | 69 (31%) | 17 (36%) | 0.5221 | 36 (27%) | 50 (38%) | 0.0500 |
IWQOL-lite** (missing = 3) | 68 ± 17 | 64 ± 19 | 0.1441 | 70 ± 17 | 65 ± 18 | 0.0138 |
IDS-SR*** (missing = 65) | 14 ± 9 | 17 ± 10 | 0.0826 | 13 ± 9 | 16 ± 10 | 0.0331 |