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Table 1 Seroprevalence Rates of Hepatitis A among Different Subsets of the Study Population

From: Decrease in seroprevalence of Hepatitis A after the implementation of nationwide disposable tableware use in Taiwan

Characteristics   Participants Seropositive* Rate (%) p
All      
   11777 2592 22.0  
Gender      < 0.001
  Women 6704 1206 18.0  
  Men 5073 1386 27.3  
Age (year)      < 0.001
  15-19 162 3 1.9  
  20-24 2967 108 3.6  
  25-29 5461 959 17.6  
  30-34 2433 1050 43.2  
  35-39 662 405 61.2  
  ≥40 92 67 72.8  
Year of birth      < 0.001
  ≤1965 114 84 80.0  
  1966 72 48 66.7  
  1967 98 62 63.3  
  1968 119 84 70.6  
  1969 220 122 55.5  
  1970 247 139 56.3  
  1971 347 191 55.0  
  1972 391 181 46.3  
  1973 517 222 42.9  
  1974 621 238 38.3  
  1975 796 287 36.1  
  1976 1043 270 25.9  
  1977 1095 201 18.4  
  1978 1159 167 14.4  
  1979 1205 144 12.0  
  1980 1063 73 6.9  
  1981 951 32 3.4  
  1982 694 14 2.0  
  1983 413 12 2.9  
  1984 330 12 3.6  
  1985 191 9 4.7  
  1986 91 0 0.0  
Birth in or after 1982     < 0.001
  Yes 1719 47 2.7  
  No 10058 2545 25.3  
Childhood residence area     < 0.001
  Urban 4795 826 17.2  
  Rural 6216 1616 26.0  
  1. *seropositive for IgG-anti-hepatitis A