. Author manuscript; available in PMC: 2019 Feb 1.

Published in final edited form as: Arthritis Rheumatol. 2018 Jan 3;70(2):185–192. doi: 10.1002/art.40355

TABLE 2.

Posterior probability estimates for the measurement error-adjusted prevalence of arthritis among US adults in 2015.

Sex	Age (Year)	Posterior Median (95% PI)
		Model with Distinct Sensitivity for 4 Sub-Populations Stratified by Age and Sex	Model with Identical Sensitivity for Men and Women, and Distinct Sensitivity by Age
Men	18–64	29.9% (23.4%, 42.3%)	24.3% (18.3%, 32.3%)
Women	18–64	31.2% (25.8%, 44.1%)	34.0% (25.8%, 44.5%)
Men	≥65	55.8% (49.9%, 70.4%)	57.9% (50.6%, 65.3%)
Women	≥65	68.7% (62.1%, 79.9%)	75.8% (66.6%, 84.6%)

PI: probability interval.

Adjusted prevalence, in contrast to unadjusted prevalence, is the estimate that is corrected for the measurement errors as a result of imperfect sensitivity and specificity of the surveillance criteria.