Table 2.

WHO age-standardized prevalence of thyroid dysfunction in older adults classified according to sex.

Diagnosis	Total		Female		Male
	Prevalence, %	95% CI	Prevalence, %	95% CI	Prevalence, %	95% CI
Euthyroid	72.26	65.19–78.38	69.83	59.92–78.19	73.60	63.80–81.52
Total thyroid dysfunction	27.74	21.62–34.81	30.17	21.81–40.08	26.40	18.48–36.20
Hypothyroidism
Subclinical	21.58	16.18–28.16	22.41	15.40–31.42	22.05	14.51–32.04
Overt	5.05	2.29–10.78	6.36	2.55–14.98	3.49	0.88–12.91
Total	26.63	20.58–33.69	28.77	20.54–38.70	25.55	17.73–35.33
Hyperthyroidism
Subclinical	0.97	0.39–2.37	1.13	0.34–3.73	0.85	0.22–3.26
Overt	0.14	0.02–1.00	0.27	0.04–1.87	No obs	No obs
Total	1.11	0.49–2.51	1.40	0.49–3.91	0.85	0.22–3.26

Obs observation.