Table 1 Characteristics of the 425 transmasculine subjects, stratified by testosterone therapy (TT) use
Used TT | Did not use TT | p value | |
|---|---|---|---|
n = 357 | n = 68 | ||
Age at surgery, median [IQR] | 25.0 [21.0, 29.0] | 27.0 [23.8, 32.2] | 0.003a |
Race/ethnicity, n (%) | 0.47b | ||
White | 277 (77.6) | 49 (72.1) | |
Black or African American | 30 (8.4) | 6 (8.8) | |
Asian | 20 (5.6) | 1 (1.5) | |
Multiracial | 18 (5.0) | 4 (5.9) | |
Native American/Pacific Islander | 2 (0.6) | 1 (1.5) | |
Unspecified | 10 (2.8) | 7 (10.3) | |
Family history of breast cancer, n (%) | 0.63b | ||
Yes | 94 (26.3) | 18 (26.5) | |
No | 207 (58.0) | 34 (50.0) | |
Not reported | 56 (15.7) | 16 (23.5) | |
Parity, n (%) | 0.41b | ||
Parous | 8 (2.2) | 3 (4.4) | |
Nulliparous | 142 (39.8) | 29 (42.6) | |
Not reported | 207 (58.0) | 36 (52.9) | |
Oophorectomy prior to surgery, n (%) | 0.22b | ||
Yes | 20 (5.6) | 1 (1.5) | |
No | 337 (94.4) | 67 (98.5) | |
Breast lesions, n (%) | 0.03b | ||
Atypical lesions | 9 (2.5) | 0 (0.0) | |
Benign lesions | 290 (81.2) | 64 (94.1) | |
None | 58 (16.2) | 4 (5.9) | |
BMI at surgery, median [IQR] | 25.8 [23.2, 29.9] | 25.4 [23.0, 29.5] | 0.57a |
Alcohol consumption, n (%) | 0.01b | ||
Current | 186 (52.1) | 48 (70.6) | |
Never | 159 (44.5) | 20 (29.4) | |
Not reported | 12 (3.4) | 0 (0.0) | |
Duration of TT at surgery, n (%) | – | ||
Never | 0 (0.0) | 68 (100.0) | |
< 1 year | 93 (26.1) | 0 (0.0) | |
> = 1 to < 2 years | 139 (38.9) | 0 (0.0) | |
> = 2 to < 5 years | 97 (27.2) | 0 (0.0) | |
> = 5 years | 14 (3.9) | 0 (0.0) | |
Unspecified duration | 14 (3.9) | 0 (0.0) | |
Chest binding, n (%) | 0.03b | ||
Yes | 169 (47.3) | 20 (29.4) | |
No | 15 (4.2) | 6 (8.8) | |
Not reported | 173 (48.5) | 42 (61.8) |