Publication: The clinical features, risk of prolonged hospitalization and household infections of hospitalized children for pandemic 2009 influenza A (H1N1) virus infection in Thailand
Issued Date
2012-03-01
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ISSN
01252208
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2-s2.0-84858412252
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of the Medical Association of Thailand. Vol.95, No.3 (2012), 403-411
Suggested Citation
Songkiat Udompornwattana, Krissada Srajai, Pongsan Suwan, Auchara Tangsathapornpong, Orasi Wittawatmongkol, Wanatpreeya Phongsamart, Nirun Vanprapar, Maneeratn Nuntarukchaikul, Pawinee Taeprasert, Sirinthip Sricharoenchai, Surapong Tanchaweng, Pilaipan Phutwattana, Walter R J Taylor, Alan Maleesatharn, Kulkanya Chokephaibulkit The clinical features, risk of prolonged hospitalization and household infections of hospitalized children for pandemic 2009 influenza A (H1N1) virus infection in Thailand. Journal of the Medical Association of Thailand. Vol.95, No.3 (2012), 403-411. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/14945
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Title
The clinical features, risk of prolonged hospitalization and household infections of hospitalized children for pandemic 2009 influenza A (H1N1) virus infection in Thailand
Author(s)
Songkiat Udompornwattana
Krissada Srajai
Pongsan Suwan
Auchara Tangsathapornpong
Orasi Wittawatmongkol
Wanatpreeya Phongsamart
Nirun Vanprapar
Maneeratn Nuntarukchaikul
Pawinee Taeprasert
Sirinthip Sricharoenchai
Surapong Tanchaweng
Pilaipan Phutwattana
Walter R J Taylor
Alan Maleesatharn
Kulkanya Chokephaibulkit
Krissada Srajai
Pongsan Suwan
Auchara Tangsathapornpong
Orasi Wittawatmongkol
Wanatpreeya Phongsamart
Nirun Vanprapar
Maneeratn Nuntarukchaikul
Pawinee Taeprasert
Sirinthip Sricharoenchai
Surapong Tanchaweng
Pilaipan Phutwattana
Walter R J Taylor
Alan Maleesatharn
Kulkanya Chokephaibulkit
Abstract
Objective: To evaluate the clinical features, risk of prolonged hospitalization, and household infection in Thai children hospitalized with 2009 pandemic influenza A/H1N1 virus (pH1N1). Material and Method: The authors conducted a retrospective chart review of children hospitalized in four Thai tertiary care hospitals between June 1 and September 30, 2009, with reverse-transcriptase-polymerase-chain-reaction confirmed pH1N1. Household contact data were obtained by telephone. Results: Pediatric admissions numbered 115, 58 were females (50.4%). Median age was 5.2 (range 0.5 to 15) years. Fifty-one (44.4%) children had underlying diseases, most commonly asthma 17 (14.8%). Median preadmission illness duration was two days (range 1 to 10). Sixty-one (53.0%) children had lymphopenia. Chest X-ray infiltration was detected in 89 (77.4%) children. Oseltamivir was prescribed in 104 (90.4%) children; 47 (45.2%) within 48 hours of illness. 70 (60.9%) children received antibiotics. The median hospitalization was three days (ran ge 1 to 94). Independent (multivariate analysis) factors associated with prolonged hospitalization (≥ 7 days) were aged five to nine years (OR 7.4; 95% CI 1.1-48.9, p = 0.037) and having an underlying disease (OR 5.9; 95% CI 1.5-23.3, p = 0.01). Five (4.3%) children required mechanical ventilation; two (1.7%) children died. Household data showed that 63 of 109 (57.8%) patients had contact with a suspected or confirmed pH1N1 case. There were 39 (15.7%) of 249 household contacts who were probable secondary cases: 23 suspected and 16 confirmed pH1N1 of whom 25 (64.1%) were aged ≤ 18 years. Conclusion: Most pH1N1 infected hospitalized children had pneumonia, an uneventful short hospitalization, and a low in hospital mortality. Half of the patients were household acquired. Secondary household cases affected mostly children.