2008-2009シーズンの庄内地域におけるインフルエンザ外来患者からみた医療施設への負荷の検討 : 新型インフルエンザA(H1N1)を視野に入れて [in Japanese] Epidemiological Study of Health Impact on Influenza Outpatients During 2008-2009 Influenza Season, Shonai, Yamagata [in Japanese]
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Abstract
これまで我が国においてインフルエンザ流行時にインフルエンザ患者がどの程度医療施設へ集積するのか分かっていない．そこで，我々は2008/09 シーズンに山形県庄内地域における医療施設の外来受診状況を調査し，季節性インフルエンザによる医療施設への負荷を評価した．その結果，インフルエンザ患者受診数は病院で最も多かったが，外来受診者全体に対するインフルエンザ患者の占める割合が最も高かったのは小児科診療所であった．さらに，厚生労働省の発表した新型インフルエンザの推定発症率をもとに庄内地域における新型インフルエンザの患者発生数の推定を行ったところ発症者総数は59,600-89,400 人と推定できた．今回の結果より，今冬新型インフルエンザ患者が2008/09 シーズンと近い医療受療行動をとった場合，病院外来および小児科標榜診療所へ著しい負荷の増加が予想され，その対策が必要と考える．
To make up for the lack of data on influenza-like illness (ILI), we studied patterns among 6,828 ILI patients seen at 34 healthcare facilities during the 2008-2009 influenza season in Shonai, Yamagata, Japan. Healthcare facilities were classified into 1) hospitals, 2) pediatric clinics, 3) internal medicine and pediatric clinics, 4) internal medicine clinics, and 5) others. The majority went to hospitals, but the highest percentage in all outpatient visits was 13.7％seen at pediatric clinics during the peak epidemiological week. Based on estimated incidence and hospitalization data for pandemic (H1N1) 2009 from Ministry of Health, Labour and Welfare, Japan, we estimated the number of ILI patients at 59,600-89,400 and the number hospitalized for pandemic (H1N1) 2009 at 895-2,240 in Shonai. If those with ILI follow the same consultation patterns as outpatients in the 2008<i>?</i>09 influenza season, this indicates an estimated 23,800-35,700 with ILI will go to hospitals and 20,040-30,060 to pediatric clinics during the H1N1 pandemic. This in turns means that an urgent need will arise for appropriate measures reducing this potentially huge burden during pandemic (H1N1) 2009 outbreak in Japan.
Journal
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- Kansenshogaku Zasshi
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Kansenshogaku Zasshi 84(1), 52-58, 2010-01-20
The Japanese Association for Infectious Diseases