TY - JOUR
T1 - The 23-valent pneumococcal polysaccharide vaccine is effective in elderly adults over 75 years old-Taiwan's PPV vaccination program
AU - Tsai, Ying Huang
AU - Hsieh, Meng Jer
AU - Chang, Chee Jen
AU - Wen, Yu Wen
AU - Hu, Han Chung
AU - Chao, Yen Nan
AU - Huang, Yhu Chering
AU - Yang, Cheng Ta
AU - Huang, Chung Chi
N1 - Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/6/9
Y1 - 2015/6/9
N2 - Background: Pneumococcal infection is a serious cause of mortality and morbidity in the elderly. A nationwide pneumococcal polysaccharide vaccine (PPV) program for elderly adults aged 75 years and older was conducted in Taiwan in 2008. The efficacy of the PPV in this very elderly population was evaluated. Methods: The data were analyzed using the Taiwan National Health Insurance Research Database (NHIRD), the cause-of-death registration database and the invasive pneumococcal disease (IPD) notification database of Taiwan's Ministry of Health and Welfare. The efficacy of PPV administration in this very elderly population was evaluated using multivariate logistic regression after propensity score matching (PSM). The rates of IPD, death from IPD, pneumonia hospitalization, death from pneumonia, and all-cause mortality were compared for those who did and did not receive the PPV. Results: Among the 1078,955 eligible people, 318,257 (29.5%) received the PPV, and 760,698 (70.5%) were not vaccinated. Using PSM to adjust for confounding factors, including age, gender, influenza vaccination status, associated chronic diseases and health care utilization, those who received the PPV had significantly lower odds ratios (ORs) for IPD (OR = 0.24, 95% CI = 0.123-0.461, p<. 0.001), death from IPD (OR = 0.09, 95% CI = 0.011-0.704, p<. 0.022, p<. 0.001), pneumonia hospitalization (OR = 0.40, 95% CI = 0.395-0.415, p<. 0.001), death from pneumonia (OR = 0.07, 95% CI = 0.059-0.082, p<. 0.001), and all-cause mortality (OR = 0.07, 95% CI = 0.069-0.072, p<. 0.001) compared with those who were not vaccinated. Conclusions: PPV vaccination in the previous year was associated with a 60% reduction in pneumonia hospitalization, a 76% reduction in IPD, and a greater than 90% reduction in death from pneumonia, IPD and all causes among people over 75 years old in Taiwan. Data from subsequent years in Taiwan and similar populations elsewhere are needed to evaluate the contribution of underlying variations in the mortality rate and the confounding effects of prior disease severity to these findings.
AB - Background: Pneumococcal infection is a serious cause of mortality and morbidity in the elderly. A nationwide pneumococcal polysaccharide vaccine (PPV) program for elderly adults aged 75 years and older was conducted in Taiwan in 2008. The efficacy of the PPV in this very elderly population was evaluated. Methods: The data were analyzed using the Taiwan National Health Insurance Research Database (NHIRD), the cause-of-death registration database and the invasive pneumococcal disease (IPD) notification database of Taiwan's Ministry of Health and Welfare. The efficacy of PPV administration in this very elderly population was evaluated using multivariate logistic regression after propensity score matching (PSM). The rates of IPD, death from IPD, pneumonia hospitalization, death from pneumonia, and all-cause mortality were compared for those who did and did not receive the PPV. Results: Among the 1078,955 eligible people, 318,257 (29.5%) received the PPV, and 760,698 (70.5%) were not vaccinated. Using PSM to adjust for confounding factors, including age, gender, influenza vaccination status, associated chronic diseases and health care utilization, those who received the PPV had significantly lower odds ratios (ORs) for IPD (OR = 0.24, 95% CI = 0.123-0.461, p<. 0.001), death from IPD (OR = 0.09, 95% CI = 0.011-0.704, p<. 0.022, p<. 0.001), pneumonia hospitalization (OR = 0.40, 95% CI = 0.395-0.415, p<. 0.001), death from pneumonia (OR = 0.07, 95% CI = 0.059-0.082, p<. 0.001), and all-cause mortality (OR = 0.07, 95% CI = 0.069-0.072, p<. 0.001) compared with those who were not vaccinated. Conclusions: PPV vaccination in the previous year was associated with a 60% reduction in pneumonia hospitalization, a 76% reduction in IPD, and a greater than 90% reduction in death from pneumonia, IPD and all causes among people over 75 years old in Taiwan. Data from subsequent years in Taiwan and similar populations elsewhere are needed to evaluate the contribution of underlying variations in the mortality rate and the confounding effects of prior disease severity to these findings.
KW - Influenza vaccine
KW - Invasive pneumococcal disease
KW - Mortality
KW - Pneumococcal polysaccharide vaccine
KW - Pneumonia
UR - https://www.scopus.com/pages/publications/84930000420
U2 - 10.1016/j.vaccine.2015.04.068
DO - 10.1016/j.vaccine.2015.04.068
M3 - 文章
C2 - 25936662
AN - SCOPUS:84930000420
SN - 0264-410X
VL - 33
SP - 2897
EP - 2902
JO - Vaccine
JF - Vaccine
IS - 25
ER -
