Table 1. Baseline Patient Characteristics by Sex.
For body mass index (BMI) and Marx activity scores there were 12 individuals with unreported data. For age, BMI, and Marx, 25th percentile, median, and 75th percentile are shown.
| Male | Female | Combined | |||||||
|---|---|---|---|---|---|---|---|---|---|
| N=540 | N=440 | N=980 | |||||||
| 25% | Median | 75% | 25% | Median | 75% | 25% | Median | 75% | |
| Age at Surgery | 18 | 25 | 35 | 17 | 21 | 33 | 17 | 23 | 34 |
| Baseline BMI* | 23.7 | 25.8 | 28.7 | 21.1 | 23.0 | 26.3 | 22.3 | 25.0 | 28.0 |
| Baseline Marx* | 8 | 12 | 16 | 8 | 12 | 16 | 8 | 12 | 16 |
| Smoke | |||||||||
| Never | 418 (77%) | 355 (81%) | 773 (79%) | ||||||
| Quit | 54 (10%) | 39 (9%) | 93 (9%) | ||||||
| Current | 63 (12%) | 43 (10%) | 106 (11%) | ||||||
| Unreported | 5 (1%) | 3 (1%) | 8 (1%) | ||||||
| Ethnicity | |||||||||
| White | 450 (83%) | 372 (85%) | 822 (84%) | ||||||
| Black | 37 (7%) | 32 (7%) | 69 (7%) | ||||||
| Asian | 16 (3%) | 15 (3%) | 31 (3%) | ||||||
| Hispanic | 3 (1%) | 6 (1%) | 9 (1%) | ||||||
| Other | 14 (3%) | 7 (2%) | 21 (2%) | ||||||
| Unreported | 20 (4%) | 8 (2%) | 28 (2%) | ||||||
| Marital Status | |||||||||
| Single | 315 (58%) | 296 (67%) | 611 (62%) | ||||||
| Married | 175 (32%) | 111 (25%) | 286 (29%) | ||||||
| Divorced | 13 (2%) | 13 (3%) | 26 (3%) | ||||||
| Separated | 6 (1%) | 2 (0%) | 8 (1%) | ||||||
| Widowed | 2 (0%) | 1 (0%) | 3 (0%) | ||||||
| Unreported | 29 (5%) | 17 (4%) | 46 (5%) | ||||||
*
12 unreported