Table 5.

Risk factors for Shypo in the elderly stratified by age analyzed by binary logistic regression.

	65–69 years old			70–79 years old			≥80 years old
	OR	95% CI	p-value	OR	95% CI	p-value	OR	95% CI	p-value
Sex (female)	1.06	[0.63, 1.79]	0.82	0.72	[0.47, 1.11]	0.14	0.89	[0.41, 1.93]	0.77
TC	1.22	[0.75, 1.99]	0.43	1.11	[0.66, 1.87]	0.70	1.96	[1.04, 3.71]	0.04
TG	1.01	[0.79, 1.28]	0.95	1.18	[0.89, 1.56]	0.25	0.86	[0.50, 1.46]	0.57
HDL-c	1.51	[0.77, 2.97]	0.23	1.10	[0.54, 2.25]	0.79	0.26	[0.08, 0.90]	0.03
LDL-c	0.83	[0.48, 1.45]	0.52	0.93	[0.53, 1.64]	0.80	0.76	[0.39, 1.48]	0.42
UIC	1.00	[1.00, 1.00]	0.46	1.00	[0.99, 1.00]	0.06	1.00	[0.99, 1.00]	0.44
TAI	2.22	[1.23, 3.99]	<0.01	1.77	[1.02, 3.08]	0.04	1.65	[0.68, 3.97]	0.27
25(OH)D <20 ng/mL	1.30	[0.68, 2.46]	0.43	0.46	[0.20, 1.04]	0.06	0.86	[0.31, 2.37]	0.77

TC, total cholesterol; TG, triglyceride; HDL-c, high-density lipoprotein cholesterol; LDL-c, low-density lipoprotein cholesterol; UIC, urinary iodine concentration; TAI, thyroid autoimmunity; 25(OH)D, 25-hydroxy vitamin D; Shypo, subclinical hypothyroidism.