Table 1.
Demographics and Baseline Characteristics of Women Who Had Undergone Primary Augmentation and Tried to Breast-feed During the Study
| Silicone implants (n = 2427) |
Saline implants (n = 1288) |
|
|---|---|---|
| Age, y | ||
| Mean (SD) | 27.9 (4.3) | 27.1 (3.9) |
| Median (min, max) | 27.0 (22, 44) | 26.5 (22, 42) |
| Age category, no. (%) | ||
| 22‒29 y | 1655 (68.2) | 972 (75.5) |
| 30‒39 y | 754 (31.1) | 312 (24.2) |
| 40‒49 y | 18 (0.7) | 4 (0.3) |
| Race, No. (%) | ||
| White | 1860 (76.6) | 876 (68.0) |
| Hispanic | 317 (13.1) | 259 (20.1) |
| Asian | 108 (4.5) | 62 (4.8) |
| Black | 43 (1.8) | 32 (2.5) |
| Other | 91 (3.8) | 55 (4.3) |
| Missing | 8 (0.3) | 4 (0.3) |
| BMI | n = 2393 | n = 1266 |
| Mean (SD) kg/m2 | 21.4 (2.7) | 21.9 (2.8) |
| BMI category, no. (%) | ||
| Underweight (<18.5 kg/m2) | 214 (8.8) | 94 (7.3) |
| Normal (18.5‒24.9 kg/m2) | 1950 (80.4) | 1018 (79.0) |
| Overweight (≥25 kg/m2) | 229 (9.4) | 154 (12.0) |
| Missing | 34 (1.4) | 22 (1.7) |
| Baseline pregnancy and breast-feeding history, no. (%) | ||
| Completed baseline reproductive questionnaire | n = 2400 | n = 1268 |
| Ever pregnanta | 1444 (60.2) | 774 (61.0) |
| Tried to breast-feedb | 762 (52.8) | 220 (28.4) |
| Difficulties of breast-feedingc | ||
| None | 479 (62.9) | 140 (63.6) |
| Not enough milk production | 103 (13.5) | 31 (14.1) |
| Mastitis | 101 (13.3) | 25 (11.4) |
| Excess pain | 43 (5.6) | 9 (4.1) |
| Too much milk production | 38 (5.0) | 7 (3.2) |
| Nipple inversion | 19 (2.5) | 8 (3.6) |
| Other | 22 (2.9) | 10 (4.5) |
aPercentage calculated using the number of patients who filled out the baseline reproductive questionnaire as the denominator. bPercentage calculated using the number of patients who were ever pregnant as the denominator. cPercentage calculated using the number of patients who tried to breast-feed as the denominator.