Table 1.
Participant Demographics.
| Baseline Characteristic | Posterior | Transgluteal | Anterior | All | P Valuea |
|---|---|---|---|---|---|
| N (% of total) | 1452 (48.1) | 633 (20.1) | 933 (30.9) | 3017 | |
| Age | |||||
| Age (mean) | 60.7 | 62.1 | 62.1 | 61.4 | .004 |
| BMI | |||||
| BMI (mean) | 30.9 | 31.3 | 29.8 | 30.6 | <.001 |
| Sex | |||||
| Male (%) | 48.1 | 35.5 | 48.1 | 45.5 | <.001 |
| Female (%) | 51.9 | 64.5 | 51.9 | 54.5 | |
| Race | |||||
| White (%) | 82.5 | 76.2 | 86.9 | 82.6 | <.001 |
| Black (%) | 12.9 | 22.2 | 10.1 | 14.0 | |
| Other/multiple (%) | 4.6 | 1.6 | 3.0 | 3.5 | |
| Ethnicity | |||||
| Not Hispanic (%) | 97.6 | 97.4 | 99.0 | 98.0 | <.025 |
| Hispanic or Latino (%) | 2.4 | 2.6 | 1.0 | 2.0 | |
| Education | |||||
| Less than college (%) | 54.5 | 62.1 | 52.4 | 55.5 | <.001 |
| College graduate (%) | 45.5 | 37.9 | 47.6 | 44.5 | |
| Work | |||||
| Working (%) | 43.7 | 38.2 | 44.6 | 42.8 | .003 |
| Unemployed looking (%) | 2.4 | 0.8 | 1.3 | 1.7 | |
| Sick of leave or disability (%) | 19.4 | 18.8 | 16.9 | 18.5 | |
| Student, homemaker, retired (%) | 34.4 | 41.4 | 37.1 | 36.7 | |
| Alcohol | |||||
| Never (%) | 31.0 | 30.5 | 25.8 | 29.3 | .007 |
| Monthly or less (%) | 24.0 | 25.9 | 21.9 | 23.8 | |
| 2–4 Times a mo (%) | 15.2 | 16.4 | 16.1 | 15.7 | |
| 2–3 Times a wk (%) | 15.4 | 16.1 | 19.5 | 16.8 | |
| ≥4 Times a wk (%) | 15.3 | 11.7 | 17.1 | 15.1 | |
| Smoke | |||||
| Never (%) | 53.4 | 52.8 | 47.5 | 51.5 | .025 |
| Current (%) | 6.7 | 8.7 | 8.6 | 7.7 | |
| Former (%) | 39.8 | 38.4 | 43.9 | 40.8 | |
| Comorbidity count | .009 | ||||
| 0 (%) | 66.1 | 59.5 | 65.3 | 64.5 | |
| 1 (%) | 25.1 | 37.5 | 23.7 | 25.2 | |
| 2+ (%) | 8.8 | 13.0 | 11.0 | 10.3 |
BMI, body mass index.
a
Significance testing based on χ-square comparisons for categorical variables and analysis of variance for continuous variables.