An Evaluation of Hand Foot and Mouth Disease Surveillance, Koh Samui District, Surat Thani Province, Thailand, January – December 2013

Abstract

Background: Hand Foot and Mouth Disease (HFMD) is a notifiable disease in the national disease surveillance system of Thailand. The HFMD is prone to outbreak among children who age below 5 years. It can caused children died each year. The situation of HFMD in Koh Samui district, Surat Thani province had a high incidence in 2013 which was 175.22 cases per 100,000 population without fatal case. Thus the preventive medicine department conducted the surveillance evaluation of HFMD with aimed to know the attributes of qualitative and quantitative and to improve the existing HFMD surveillance system in Koh Samui Hospital.
Methods: A cross sectional study was conducted. The population was a case who lives in Koh Samui district and took medical service at Koh Samui hospital in 2013. We reviewed medical record of HFMD that reported to the national notifiable disease surveillance system or report 506 and we reviewed medical records of relevant ICD10 disease which similar symptom of HFMD in both OPD and IPD during 1 January – 31 December 2013. We also interviewed the hospital staffs who involved to the HFMD surveillance including medical doctors, nurses, public health technician and medical record librarian.
Results: The sensitivity of HFMD surveillance of Koh Samui hospital in 2013 was 86.54%. The positive predictive value was 84.91%. The data accuracy in the surveillance system was 100% for gender and age but the address was 96.20% correctly. The representativeness was good in gender. Among 106 cases were met the case definition and had 99.82% on timeliness of reporting. Overall HFMD surveillance was good in flexibility, stability and usefulness among hospital staff’s opinion.
Discussions and Conclusion: Overall, the attributes of quantitative of Koh Samui hospital was very good and the attributes of qualitative was good. The hospital must improve the education of clinical criteria of HFMD among clinician and nurse to avoid confusing with similar disease such as Herpangina.