[영문]Objectives. The purpose of this study was to describe results from a pilotsurveillance system for carbon monoxide poisoning?a significant yet preventablepublic health issue for which most public health agencies do not conductroutine public health surveillance.Methods. The authors developed a rate-based statewide surveillance system.Cases were identified using the 1998 Council of State and Territorial Epidemiologists’case definition in hospital discharges, emergency department andhospital outpatient visits, and mortality data. Intentional and fire-related injurieswere excluded. The system was supplemented with qualitative informationfrom newspaper articles. Annual, age, and sex-specific incidence rates wereestimated. Exposure source/setting was described using E-codes; occupationalsetting was assessed by combining E-codes and payer code. Cases occurringduring a disaster-related power outage in January 1998 were compared withcases identified during routine surveillance from 1999 through 2003.Results. During the five years of routine surveillance, 740 cases were identified;47 (6.4%) were hospitalized, 442 (59.7%) were seen in an emergency department,and 251 (34.3%) were seen in another outpatient setting. More caseswere observed in fall/winter; 23.1% of patients aged 16 or older were classifiedas exposed in an occupational setting. Among disaster-related cases, morewere older (？65 years of age; 11.9% vs. 4.2%) and female (61.6% vs. 45.3%);and fewer were in occupational settings (1.8% vs. 23.1%).Conclusions. Establishing state-based public health surveillance for CO poisoningis feasible and essential for guiding prevention and control efforts. Thefinding that more than 20% of cases were classified as occupational should beinvestigated further.