OBJECTIVE: To estimate the effectiveness of influenza vaccine in preventing hospital admission for pneumonia in non-institutionalised elderly people. DESIGN: This was a case-control study. SETTING: All three public hospitals in the Castellón area of Spain. PARTICIPANTS: Cases were people aged 65 or more not living in an institution who were admitted to hospital for pneumonia between November 15, 1994 and March 31, 1995. Each case was matched with two sex matched control subjects aged 65 years or older admitted to hospital in the same week for acute abdominal surgical conditions or trauma. The sampling of incident cases was consecutive. Eighty three cases and 166 controls were identified and included in the study. MEASUREMENTS: Trained interviewers completed a questionnaire for each subject on the vaccination status, smoking habits, previous diseases, health care use, social contacts, family background, the vaccination status of the family carer, home characteristics, and socioeconomic status. RESULTS: The adjusted odds ratio of the influenza vaccination preventing admission to hospital for pneumonia was 0.21 (95% confidence interval 0.09, 0.55). The variables which best explained the risk of being a case were age, intensity of social contacts, health care use, previous diseases, and the existence of a vaccinated family carer. CONCLUSIONS: Influenza vaccination reduced significantly hospital admissions for pneumonia in non-institutionalised elderly people.
OBJECTIVE: To estimate the effectiveness of influenza vaccine in preventing hospital admission for pneumonia in non-institutionalised elderly people. DESIGN: This was a case-control study. SETTING: All three public hospitals in the Castellón area of Spain. PARTICIPANTS: Cases were people aged 65 or more not living in an institution who were admitted to hospital for pneumonia between November 15, 1994 and March 31, 1995. Each case was matched with two sex matched control subjects aged 65 years or older admitted to hospital in the same week for acute abdominal surgical conditions or trauma. The sampling of incident cases was consecutive. Eighty three cases and 166 controls were identified and included in the study. MEASUREMENTS: Trained interviewers completed a questionnaire for each subject on the vaccination status, smoking habits, previous diseases, health care use, social contacts, family background, the vaccination status of the family carer, home characteristics, and socioeconomic status. RESULTS: The adjusted odds ratio of the influenza vaccination preventing admission to hospital for pneumonia was 0.21 (95% confidence interval 0.09, 0.55). The variables which best explained the risk of being a case were age, intensity of social contacts, health care use, previous diseases, and the existence of a vaccinated family carer. CONCLUSIONS: Influenza vaccination reduced significantly hospital admissions for pneumonia in non-institutionalised elderly people.
Authors: Jung Yeon Heo; Joon Young Song; Ji Yun Noh; Min Joo Choi; Jin Gu Yoon; Saem Na Lee; Hee Jin Cheong; Woo Joo Kim Journal: Hum Vaccin Immunother Date: 2017-12-19 Impact factor: 3.452
Authors: H Schwarz Chávarri; J L Ortuño López; A Lattur Vílchez; V Pedrera Carbonell; D Orozco Beltrán; V Gil Guillén Journal: Aten Primaria Date: 2005-03-15 Impact factor: 1.137
Authors: Rachel E Jordan; Jeremy I Hawker; Jon G Ayres; Peymané Adab; William Tunnicliffe; Babatunde Olowokure; Joe Kai; Richard J McManus; Ros Salter; Kar Keung Cheng Journal: Br J Gen Pract Date: 2008-06 Impact factor: 5.386
Authors: Travis S Hottes; Danuta M Skowronski; Brett Hiebert; Naveed Z Janjua; Leslie L Roos; Paul Van Caeseele; Barbara J Law; Gaston De Serres Journal: PLoS One Date: 2011-07-26 Impact factor: 3.240
Authors: Vittorio Demicheli; Tom Jefferson; Carlo Di Pietrantonj; Eliana Ferroni; Sarah Thorning; Roger E Thomas; Alessandro Rivetti Journal: Cochrane Database Syst Rev Date: 2018-02-01