Table 3.
Characteristics of the STRONG transgender cohort
| Participant characteristics | Overall transgender cohort, n (%) | TF cohort, n (%)* | TM cohort, n (%)* |
| Health plan site | |||
| KPNC | 3842 (60) | 1949 (56) | 1831 (63) |
| KPSC | 2440 (38) | 1431 (41) | 982 (34) |
| KPGA | 174 (2.7) | 95 (2.7) | 79 (2.7) |
| Race/ethnicity | |||
| Non-Hispanic white | 3532 (55) | 1828 (53) | 1669 (58) |
| Non-Hispanic black | 510 (7.9) | 248 (7.1) | 256 (8.9) |
| Asian | 515 (8.0) | 305 (8.8) | 203 (7.0) |
| Hispanic | 1232 (19) | 710 (20) | 503 (17) |
| Other/unknown | 667 (10) | 384 (11) | 261 (9.0) |
| Age† | |||
| 3–17 years | 1347 (21) | 588 (17) | 745 (26) |
| 18–25 years | 1431 (22) | 655 (19) | 753 (26) |
| 26–35 years | 1329 (21) | 600 (17) | 707 (24) |
| 36–45 years | 939 (15) | 577 (17) | 347 (12) |
| 46–55 years | 779 (12) | 552 (16) | 219 (7.6) |
| >55 years | 631 (9.8) | 503 (14) | 121 (4.2) |
| Smoking status† | |||
| Current | 1011 (16) | 506 (15) | 489 (17) |
| Former | 873 (14) | 461 (13) | 401 (14) |
| Never | 4029 (62) | 2196 (63) | 1795 (62) |
| Unknown | 543 (8.4) | 312 (9.0) | 207 (7.2) |
| BMI† | |||
| Underweight | 150 (2.3) | 96 (2.8) | 52 (1.8) |
| Normal weight | 2404 (37) | 1356 (39) | 1025 (35) |
| Overweight | 1648 (26) | 915 (26) | 710 (25) |
| Obese | 1690 (26) | 777 (22) | 886 (31) |
| Unknown | 564 (8.7) | 331 (9.5) | 219 (7.6) |
| Medicaid status† | |||
| Yes | 265 (4.1) | 138 (4.0) | 123 (4.3) |
| No | 6029 (93) | 3251 (94) | 2702 (93) |
| Unknown | 162 (2.5) | 86 (2.5) | 67 (2.3) |
| Census-level education status | |||
| <30% of residents have high school or less | 2634 (41) | 1405 (40) | 1194 (41) |
| 30%–50% of residents have high school or less | 2233 (35) | 1218 (35) | 979 (34) |
| >50% have high school or less | 1467 (23) | 795 (23) | 655 (23) |
| Unknown | 122 (1.9) | 57 (1.6) | 64 (2.2) |
| Total, n (%) | 6456 (100) | 3475 (54) | 2892 (45) |
*Excludes 89 persons with unknown natal sex.
†Assessed at index date (date of first evidence of transgender status in electronic medical records).
KPGA, Kaiser Permanente health plan located in Georgia; KPNC, Kaiser Permanente health plan located in Northern California; KPSC, Kaiser Permanente health plan located in Southern California; STRONG, Study of Transition, Outcomes and Gender; TF, transfeminine; TM, transmasculine.