Weather parameters and nosocomial bloodstream infection: a case-referent study
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade de São Paulo
2015
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| _version_ | 1876469943612997632 |
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| author | Silvia Maria Caldeira |
| author_facet | Silvia Maria Caldeira |
| contents | Weather parameters and nosocomial bloodstream infection: a case-referent study Silvia Maria Caldeira Antonio Ribeiro da Cunha Renata Tamie Akazawa Rayana Gonçalves Moreira Lenice do Rosário de Souza Carlos Magno Castelo Branco Fortaleza Salud etiology Humidity Temperature microbiology Cross Infection OBJECTIVE:To evaluate if temperature and humidity influenced the etiology of bloodstream infections in a hospital from 2005 to 2010.METHODS:The study had a case-referent design. Individual cases of bloodstream infections caused by specific groups or pathogens were compared with several references. In the first analysis, average temperature and humidity values for the seven days preceding collection of blood cultures were compared with an overall “seven-days moving average” for the study period. The second analysis included only patients with bloodstream infections. Several logistic regression models were used to compare different pathogens and groups with respect to the immediate weather parameters, adjusting for demographics, time, and unit of admission. RESULTS:Higher temperatures and humidity were related to the recovery of bacteria as a whole (versus fungi) and of gram-negative bacilli. In the multivariable models, temperature was positively associated with the recovery of gram-negative bacilli (OR = 1.14; 95%CI 1.10;1.19) or Acinetobacter baumannii (OR = 1.26; 95%CI 1.16;1.37), even after adjustment for demographic and admission data. An inverse association was identified for humidity. CONCLUSIONS: The study documented the impact of temperature and humidity on the incidence and etiology of bloodstream infections. The results correspond with those from ecological studies, indicating a higher incidence of gram-negative bacilli during warm seasons. These findings should guide policies directed at preventing and controlling healthcare-associated infections. 2015 artículo científico 0034-8910 https://www.redalyc.org/articulo.oa?id=67240213016 en http://www.redalyc.org/revista.oa?id=672 Revista de Saúde Pública application/pdf Universidade de São Paulo Revista de Saúde Pública (Brasil) Vol.49 |
| format | Artículo científico |
| id | redalyc_67240213016 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidade de São Paulo |
| spellingShingle | Weather parameters and nosocomial bloodstream infection: a case-referent study Silvia Maria Caldeira Salud etiology Humidity Temperature microbiology Cross Infection Weather parameters and nosocomial bloodstream infection: a case-referent study Silvia Maria Caldeira Antonio Ribeiro da Cunha Renata Tamie Akazawa Rayana Gonçalves Moreira Lenice do Rosário de Souza Carlos Magno Castelo Branco Fortaleza Salud etiology Humidity Temperature microbiology Cross Infection OBJECTIVE:To evaluate if temperature and humidity influenced the etiology of bloodstream infections in a hospital from 2005 to 2010.METHODS:The study had a case-referent design. Individual cases of bloodstream infections caused by specific groups or pathogens were compared with several references. In the first analysis, average temperature and humidity values for the seven days preceding collection of blood cultures were compared with an overall “seven-days moving average” for the study period. The second analysis included only patients with bloodstream infections. Several logistic regression models were used to compare different pathogens and groups with respect to the immediate weather parameters, adjusting for demographics, time, and unit of admission. RESULTS:Higher temperatures and humidity were related to the recovery of bacteria as a whole (versus fungi) and of gram-negative bacilli. In the multivariable models, temperature was positively associated with the recovery of gram-negative bacilli (OR = 1.14; 95%CI 1.10;1.19) or Acinetobacter baumannii (OR = 1.26; 95%CI 1.16;1.37), even after adjustment for demographic and admission data. An inverse association was identified for humidity. CONCLUSIONS: The study documented the impact of temperature and humidity on the incidence and etiology of bloodstream infections. The results correspond with those from ecological studies, indicating a higher incidence of gram-negative bacilli during warm seasons. These findings should guide policies directed at preventing and controlling healthcare-associated infections. 2015 artículo científico 0034-8910 https://www.redalyc.org/articulo.oa?id=67240213016 en http://www.redalyc.org/revista.oa?id=672 Revista de Saúde Pública application/pdf Universidade de São Paulo Revista de Saúde Pública (Brasil) Vol.49 |
| title | Weather parameters and nosocomial bloodstream infection: a case-referent study |
| topic | Salud etiology Humidity Temperature microbiology Cross Infection |
| url | https://www.redalyc.org/articulo.oa?id=67240213016 |