Table 4.
Estimated population sizes and hepatitis C prevalences among adults aged ≥18 years, United States 2013-2016
| Estimated Adult Population Sizea | HCV Antibody Prevalence | HCV RNA Prevalence | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Ever Infected Personsb | Prevalence | Number of Currently Infected Personsb | Prevalence | ||||||
| Population | Estimate | 95% CI | Estimate | 95% CI | Estimate | 95% CI | Estimate | 95% CI | |
| NHANESc | 241,152,600 | 3,721,000 | (3,094,000-4,434,800) | 1.5% | (1.3%-1.8%) | 2,139,000 | (1,794,200-2,529,700) | 0.9% | (0.7%-1.0%) |
| Additional populations | |||||||||
| Incarcerated | 2,131,000 | 344,100 | (308,800-382,500) | 16.1% | (14.5%-17.9%) | 227,400 | (201,900-255,600) | 10.7% | (9.5%-12.0%) |
| Unsheltered homeless | 160,600 | 23,700 | (20,300-27,100) | 14.7% | (12.7%-16.9%) | 17,400 | (14,400-20,500) | 10.8% | (8.9%-12.8%) |
| Active-duty military | 1,288,600 | 13,500 | (8,000-18,100) | 1.0% | (0.6%-1.4%) | 6,900 | (2,700-11,200) | 0.5% | (0.2%-0.9%) |
| Nursing homes | 1,425,500 | 18,900 | (11,700-21,000) | 1.3% | (0.8%-1.5%) | 6,900 | (4,600-9,300) | 0.5% | (0.3%-0.7%) |
| Additional populations (subtotal)d | 5,005,700 | 400,100 | 258,600 | ||||||
| NHANES (modified estimate excluding additional populations)d | 239,864,100 | 3,701,100 | (3,077,500-4,411,100) | 1.5% | (1.3%-1.8%) | 2,127,600 | (1,784,600-2,516,200) | 0.9% | (0.7%-1.0%) |
| Totald | 244,869,800 | 4,101,200 | (3,357,700-4,861,100) | 1.7% | (1.4%-2.0%) | 2,386,100 | (1,983,900-2,807,800) | 1.0% | (0.8%-1.1%) |
Population sizes are estimated as of December 2016 based on the American Community Survey 5-year estimates from 2012-2016.
Number of infected persons is calculated by multiplying the prevalence percentage estimate by the Estimated Adult Population Size; values may not multiply due to rounding.
NHANES prevalence percentage estimates are based on results from 2013-2016 NHANES. Population size includes noninstitutionalized adults eligible for NHANES from the 2012-2016 American Community Survey.
Values may not sum to column subtotal and total due to rounding.
Abbreviations: NHANES, National Health and Nutrition Examination Survey; HCV, hepatitis C virus