Table 1 Acute hepatitis B in Poland in 2010–2014 in birth cohorts unvaccinated in infancy. Distribution of reported cases and incidence by demographic features and history of recent hospitalization
N | % | Incidence per 100,000 | p-valuea | ||
|---|---|---|---|---|---|
Total | 440 | 100 | 0.33 | ||
Onset year | 2010 | 123 | 28.0% | 0.45 | 0.822 |
2011 | 101 | 23.0% | 0.37 | ||
2012 | 74 | 16.8% | 0.28 | ||
2013 | 79 | 18.0% | 0.30 | ||
2014 | 63 | 14.3% | 0.24 | ||
Sex | Male | 285 | 64.8% | 0.45 | 0.0011 |
Female | 155 | 35.2% | 0.22 | ||
Birth cohort-groupb | 1976–1985 | 133 | 30.2% | 0.42 | < 0.001 |
1961–1975 | 96 | 21.8% | 0.25 | ||
1946–1960 | 113 | 25.7% | 0.28 | ||
born before 1946 | 98 | 22.3% | 0.42 | ||
Place of residence | Urban total | 304 | 69.1% | 0.35 | 0.0156c |
Cities< 100,000 | 129 | 29.3% | 0.28 | 0.0149d | |
Cities ≥100,000 | 175 | 39.8% | 0.42 | ||
Rural | 136 | 30.9% | 0.26 | ||
Professional activity (adults) | Employed | 191 | 43.4% | 0.26 | < 0.001 |
Unemployed | 37 | 8.4% | 0.58 | ||
Retirees | 117 | 26.6% | 0.37 | ||
Disability pensioners | 42 | 9.5% | 0.55 | ||
Hospitalization history | Not hospitalized | 274 | 62.3% | 0.24 | < 0.001 |
(during the incubation period) | Hospitalized | 166 | 37.7% | 0.74 |