Table 1.

Distributions of selected characteristics among PTC cases and matched controls

Cases (N = 741)Controls (N = 741)
n (%)n (%)P
Age at diagnosis, y
 <30210 (28.3)203 (27.4)
 30–39309 (41.7)322 (43.5)
 40–49185 (25.0)179 (24.2)
 ≥5037 (5.0)37 (5.0)0.92
Gender
 Male400 (54.0)400 (54.0)
 Female341 (46.0)341 (46.0)1.00
Race
 White467 (63.0)466 (62.9)
 Black131 (17.7)132 (17.8)
 Hispanic68 (9.2)68 (9.2)
 Other55 (7.4)55 (7.4)
 Unknown20 (2.7)20 (2.7)1.00
BMI, kg/m²
 <25256 (34.6)285 (38.5)
 25–29.9148 (20.0)129 (17.4)
 ≥3016 (2.2)10 (1.4)
 Missing321 (43.3)317 (42.8)0.23
Service
 Army299 (40.4)253 (34.1)
 Air Force193 (26.1)150 (20.2)
 Marines and Coast Guard combined64 (8.6)91 (12.3)
 Navy185 (25.0)247 (33.3)<0.0001