Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study
<p>Abstract</p> <p>Background</p> <p>While floods can potentially increase the transmission of dengue, only few studies have reported the association of dengue epidemics with flooding. We estimated the effects of river levels and rainfall on the hospital admissions for...
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| Format: | Article |
| Language: | English |
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BMC
2012-04-01
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| Series: | BMC Infectious Diseases |
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| Online Access: | http://www.biomedcentral.com/1471-2334/12/98 |
| _version_ | 1811246706530975744 |
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| author | Hashizume Masahiro Dewan Ashraf M Sunahara Toshihiko Rahman M Yamamoto Taro |
| author_facet | Hashizume Masahiro Dewan Ashraf M Sunahara Toshihiko Rahman M Yamamoto Taro |
| author_sort | Hashizume Masahiro |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>While floods can potentially increase the transmission of dengue, only few studies have reported the association of dengue epidemics with flooding. We estimated the effects of river levels and rainfall on the hospital admissions for dengue fever at 11 major hospitals in Dhaka, Bangladesh.</p> <p>Methods</p> <p>We examined time-series of the number of hospital admissions of dengue fever in relation to river levels from 2005 to 2009 using generalized linear Poisson regression models adjusting for seasonal, between-year variation, public holidays and temperature.</p> <p>Results</p> <p>There was strong evidence for an increase in dengue fever at high river levels. Hospitalisations increased by 6.9% (95% CI: 3.2, 10.7) for each 0.1 metre increase above a threshold (3.9 metres) for the average river level over lags of 0–5 weeks. Conversely, the number of hospitalisations increased by 29.6% (95% CI: 19.8, 40.2) for a 0.1 metre decrease below the same threshold of the average river level over lags of 0–19 weeks.</p> <p>Conclusions</p> <p>Our findings provide evidence that factors associated with both high and low river levels increase the hospitalisations of dengue fever cases in Dhaka.</p> |
| first_indexed | 2024-04-12T14:57:17Z |
| format | Article |
| id | doaj.art-a57aacbcd45a440e8f0b46f1af4cedb2 |
| institution | Directory Open Access Journal |
| issn | 1471-2334 |
| language | English |
| last_indexed | 2024-04-12T14:57:17Z |
| publishDate | 2012-04-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Infectious Diseases |
| spelling | doaj.art-a57aacbcd45a440e8f0b46f1af4cedb22022-12-22T03:28:12ZengBMCBMC Infectious Diseases1471-23342012-04-011219810.1186/1471-2334-12-98Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series studyHashizume MasahiroDewan Ashraf MSunahara ToshihikoRahman MYamamoto Taro<p>Abstract</p> <p>Background</p> <p>While floods can potentially increase the transmission of dengue, only few studies have reported the association of dengue epidemics with flooding. We estimated the effects of river levels and rainfall on the hospital admissions for dengue fever at 11 major hospitals in Dhaka, Bangladesh.</p> <p>Methods</p> <p>We examined time-series of the number of hospital admissions of dengue fever in relation to river levels from 2005 to 2009 using generalized linear Poisson regression models adjusting for seasonal, between-year variation, public holidays and temperature.</p> <p>Results</p> <p>There was strong evidence for an increase in dengue fever at high river levels. Hospitalisations increased by 6.9% (95% CI: 3.2, 10.7) for each 0.1 metre increase above a threshold (3.9 metres) for the average river level over lags of 0–5 weeks. Conversely, the number of hospitalisations increased by 29.6% (95% CI: 19.8, 40.2) for a 0.1 metre decrease below the same threshold of the average river level over lags of 0–19 weeks.</p> <p>Conclusions</p> <p>Our findings provide evidence that factors associated with both high and low river levels increase the hospitalisations of dengue fever cases in Dhaka.</p>http://www.biomedcentral.com/1471-2334/12/98BangladeshClimateDengueRiver levelTime-series |
| spellingShingle | Hashizume Masahiro Dewan Ashraf M Sunahara Toshihiko Rahman M Yamamoto Taro Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study BMC Infectious Diseases Bangladesh Climate Dengue River level Time-series |
| title | Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study |
| title_full | Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study |
| title_fullStr | Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study |
| title_full_unstemmed | Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study |
| title_short | Hydroclimatological variability and dengue transmission in Dhaka, Bangladesh: a time-series study |
| title_sort | hydroclimatological variability and dengue transmission in dhaka bangladesh a time series study |
| topic | Bangladesh Climate Dengue River level Time-series |
| url | http://www.biomedcentral.com/1471-2334/12/98 |
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