Table 1.

Demographics of the Sample Population

Characteristic	Subclincal Hypothyroidism(n = 215) No. (%)	Control (n = 8,013) No. (%)	PValue
Sex			<.01
Male	72 (27.4)	3,890 (47.9)
Female	143 (72.6)	4,123 (52.1)
Race			<.01
Non-Hispanic white	142 (90.0)	4,025 (80.5)
Non-Hispanic black	20 (3.2)	1,916 (9.1)
Mexican-American	43 (3.0)	1,751 (3.5)
Other	10 (3.8)	321 (6.9)
Age			<.01
40–49 y	29 (23.0)	2,294 (37.9)
50–59 y	35 (17.3)	1,580 (24.1)
60–69 y	45 (23.4)	1,865 (20.4)
70–79 y	64 (27.7)	1,338 (12.8)
>80 y	42 (8.6)	936 (4.8)

Note: Percentages are weighted totals using SUDAAN to account for the complex sampling design of the NHANES III.