The Association between Type 2 Diabetes Mellitus and Thyroid Cancer
Table 1
Subject characteristics.
Characteristics
No thyroid cancer () Mean ± SD or N (%)
Thyroid cancer () Mean ± SD or N (%)
valuea
Age (years)
54.9 ± 10.2
54.9 ± 10.2
Sex
Male
199 (48.0)
199 (48.0)
Female
216 (52.0)
216 (52.0)
Income (million KRW)
<0.001
<3
67 (16.1)
120 (28.9)
3–6
177 (42.7)
186 (44.8)
≥6
171 (41.2)
109 (26.3)
Education
0.038
≤Elementary school
17 (4.1)
24 (5.8)
Middle or high school
155 (37.4)
184 (44.3)
≥College
243 (58.6)
207 (49.9)
Smoking
0.515
Never
271 (65.3)
262 (63.1)
Ever
144 (34.7)
153 (36.9)
Alcohol
0.029
Never
185 (44.6)
154 (37.1)
Ever
230 (55.4)
261 (62.9)
Regular exercise
0.329
No
181 (43.6)
195 (47.0)
Yes
234 (56.4)
220 (53.0)
Obesityb
116 (28.0)
140 (33.7)
0.071
T2DM
67 (16.1)
50 (12.1)
0.090
Hypertension
112 (27.0)
116 (28.0)
0.756
Dyslipidemia
133 (32.0)
100 (24.1)
0.011
Ischemic heart disease
20 (4.8)
11 (2.7)
0.099
Benign thyroid disease
81 (19.5)
67 (16.1)
0.204
Other cancers
25 (6.0)
38 (9.2)
0.088
SD: standard deviation; T2DM: type 2 diabetes mellitus. a value from a χ2 test for binary outcomes, comparing differences between any 2 study groups. bBody mass index (weight in kilograms divided by height in meters squared) ≥ 25 kg/m2.
