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ミャンヤン農村部における HBsAg 陽性および HBsAb 陰性集団の有病率
[Prevalence of HBsAg Positive and HBsAb Negative Populations in Rural Mianyang].
PMID: 32677411
抄録
目的:
ミャンヤン農村部における HBsAg 陽性者および陰性者の有病率を調査し、適切な予防接種戦略に対するエビデンスを提供すること。
OBJECTIVE: To determine the prevalence of positive HBsAg and negative HBsAg populations in rural Mianyang, and provide evidence support for proper immunization strategies.
方法:
多段階無作為抽出法により選抜された Mianyang の農村住民 163,797 人を対象にアンケート調査を実施した。参加者から血清サンプルを採取し、酵素連鎖免疫吸着法(ELISA)を用いてHBsAgおよびHBsAbを検出した。
METHODS: A questionnaire survey was conducted on 163 797 rural residents in Mianyang selected through a multistage random sampling strategy. Serum samples were taken from the participants to detect HBsAg and HBsAb with enzyme-linked immunosorbent assay (ELISA).
結果:
全体では、6.57% 〔95%信頼区間():6.45%-6.69%〕の人が HBsAg 陽性であった。HBsAg 陰性の参加者では、40.32% (95%: 40.36%-40.84%) が HBsAb 陰性であった。HBsAg陽性の有病率は、女性(5.73%)に比べて男性(7.74%)の方が高かった。しかし、HBsAg陰性の男性参加者は、女性参加者(40.61%)に比べて、HBsAb陰性(39.93%)の有病率が低かった。また、56~65歳ではHBsAg陽性の有病率が最も高く(7.36%)、86~96歳ではHBsAg/HBsAb陰性の有病率が最も高く(47.61%)、既婚者(6.6%)ではHBsAg陰性の有病率が最も高かった。既婚者(6.63%)、福城区在住者(9.23%)、B型肝炎の家族歴あり(21.01%)、ワクチン未接種者(7.30%)では、HBsAg陽性の有病率が他の人より高かった。離婚・寡婦(43.04%)、安郡在住(55.24%)、B型肝炎の家族歴なし(40.60%)、ワクチン接種済み(40.92%)の人は、HBsAg/HBsAb陰性の有病率が他の人より高かった。これらの差は統計的に有意であった(<0.05)。
RESULTS: Overall, 6.57% 〔95% confidence interval (): 6.45%-6.69%〕 of participants were HBsAg positive. In those with negative HBsAg, 40.32% (95%: 40.36%-40.84%) had negative HBsAb. Higher prevalence of positive HBsAg was found in the male participants (7.74%) compared with the females (5.73%). But the male participants with negative HBsAg were less likely to have negative HBsAb (39.93%) than their female counterparts (40.61%). Those aged between 56 and 65 years had the highest prevalence of positive HBsAg (7.36%); whereas, those aged between 86 and 96 years had the highest prevalence of negative HBsAg/HBsAb (47.61%). The participants who were married (6.63%), resided in Fucheng District (9.23%), had a family history of Hepatitis B (21.01%) and were not vaccinated (7.30%) had higher prevalence of positive HBsAg than others. Those who were divorced and widowed (43.04%), resided in An County (55.24%), had no family history of Hepatitis B (40.60%), and were vaccinated (40.92%) had higher prevalence of negative HBsAg/HBsAb than others. These differences were statistically significant (<0.05).
結論:
美観陽市の農村住民の高い割合は、HBsAg陽性またはHBsAg/HBsAb陰性である。高齢者やワクチン接種を受けていない人たちを、B型肝炎の予防と管理の主な対象とすべきである。
CONCLUSIONS: A high proportion of rural residents in Mianyang are HBsAg positive or HBsAg/HBsAb negative. The older population and those without vaccination should be the main target in the prevention and control of hepatitis B.
Copyright© by Editorial Board of Journal of Sichuan University (Medical Science Edition).