Table 1.

Distribution of selected characteristics among thyroid cancer cases and controls

Cases (n = 440)Controls (n = 465)
Number (%)Number (%)P
Age (years)0.0001
 <4084 (19.1)61 (13.1)
 40–49112 (25.5)117 (25.2)
 50–59140 (31.8)126 (27.1)
 60–6978 (17.7)94 (20.2)
 ≥7026 (5.9)67 (14.4)
Gender<0.0001
 Male84 (19.1)145 (31.2)
 Female356 (80.9)320 (68.8)
Race0.21
 White396 (90.0)427 (91.8)
 Black16 (3.6)20 (4.3)
 Other28 (6.4)18 (3.9)
BMI (kg/m2)0.0005
 <25140 (31.8)185 (39.8)
 25–29.9138 (31.4)160 (34.3)
 ≥30159 (36.1)112 (24.1)
 Missing3 (0.7)8 (1.7)
Family history of thyroid cancer0.0051
 Yes71 (16.1)46 (9.9)
 No369 (83.9)419 (90.1)
Benign thyroid disease<0.0001
 Yes56 (12.7)12 (2.6)
 No384 (87.3)453 (97.4)