Seroprevalence and risk factors for hepatitis B infection in an adult population in Northeast China.

Int J Med Sci · 2011 · PMC3100740 · PMID 21611114

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a negative trendno p-value reported

People in the 18-29 age group had a greater likelihood of having been infected by hepatitis B [HBsAg(+)], and a negative trend was seen with age.

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a positive trendno p-value reported

People in the 18-29 age group had a lower likelihood of having been exposed to hepatitis B [anti-HBc (+)] and a positive trend was seen with age (Table 6 ).

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.