About Carbon Monoxide Data
About the Data
This site provides data for the number and rate of CO hospitalizations and emergency department (ED) visits for New York State. Information is extracted from the Statewide Planning and Research Cooperative System (SPARCS) database. These data include people who were treated in hospital emergency rooms or required extended care in a hospital because of CO poisoning.
Mortality data is provided for the number and rate of CO deaths for New York State. Information is extracted from the Centers for Disease Control and Prevention (CDC)-maintained WONDER (Wide-ranging Online Data for Epidemiologic Research) database -- an easy-to-use, menu-driven system that makes the information resources of the CDC available to public health professionals and the public at large. It provides access to a wide array of public health information. The Multiple Cause of Death data available on WONDER are county-level national mortality and population data.
| Data Source | ED Visits and Hospitalizations: Statewide Planning and Research Cooperative System (SPARCS), Bureau of Biometrics and Health Statistics, New York State Department of Health Mortality: Wide-ranging Online Data for Epidemiologic Research database, Centers for Disease Control and Prevention (CDC WONDER) |
|---|---|
| Time Frame | ED Visits and Hospitalizations: 2000-2019 Mortality: 2000-2019 |
| Geographic Coverage | ED Visits and Hospitalizations: New York State by Region and by County Mortality: New York State |
| Last Update | February 2021 |
| ICD Codes & Data Methodology | See Technical Notes |
Interpreting Data
The hospitalization, ED visit, and mortality data represent individual cases of CO poisoning and individual deaths. They do not provide insight into the number of episodes which resulted in individual cases of CO poisoning or CO deaths. Annual variations in the number of people hospitalized and visited the emergency department for CO poisoning and the number of CO deaths may not reflect an increase in episodes of CO poisoning or mortality, but instead may reflect variations in the number people who were poisoned per episode.
Rate
A rate provides information about patterns of carbon monoxide hospitalizations, ED visits, and mortality over time and by geographic location. ED visits rates are calculated by dividing the total number carbon monoxide poisoning ED visits by the total population of a particular geographic area. That number is than multiplied by 100,000. Hospitalization rates are calculated by dividing the total number carbon monoxide poisoning hospitalizations by the total population of a particular geographic area. That number is than multiplied by 100,000. Age adjusted rates are calculated by multiplying the age-specific death rate for each age group by the corresponding weight from the 2000 standard population, summing across all age groups, and then multiplying this result by 100,000.
View by Month and Year
Users can view by year to see tables and charts of the number and rate of CO ED visits and hospitalizations in New York State. Users can view by month to see tables and charts displaying the sum of CO ED visits or hospitalizations in New York State by month. These data show annual and seasonal trends in CO ED visits and hospitalizations and relationship between colder weather and CO poisoning.
View by Region
Users can view by region to see tables and charts comparing the number and rate of CO ED visits and hospitalizations in New York State Excluding New York City and New York City.
View by Place of Exposure
Users can view by place of exposure to show a table and chart with the distribution of CO ED visits and hospitalizations by ICD-09 Place-of-injury code. These data show that most CO poisonings occur from exposures at home.
View by Cause
Users can view by cause to see a table and chart with the CO ED visits and hospitalization rate by fire-relatedness. The user can view these data for the entire state or for New York State excluding New York City and New York City. These data show the difference in CO ED visits and hospitalizations and the potential sources of exposure for each region.
View by CO Age-Adjusted Mortality by Year
Users can view by year to see tables and charts with the number and rate of CO deaths in NYS by year and can better understand trends in CO mortality.
Technical Notes
ED Visits and Hospitalizations:
- Data on carbon monoxide are extracted from SPARCS.
- CO ED visit or hospitalization years and months are based on hospital admission date.
- In October 2015, reporting of diagnosis codes in the hospitalization and ED visit datasets switched from International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) coding to International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) coding. This may result in apparent changes in trends between 2015 and 2016 that are due solely to the switch from ICD-9-CM to ICD-10-CM.
- For ED visits and Hospitalizations that had a hospital admission date before October 1, 2015: A CO ED visit or hospitalization is defined as having a principal diagnosis with an International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) code of 986 or ICD-9-CM External Cause-of-Injury code (E-code) E8682, E8683, E8688, E8689, E9520, E9521, E9820, E9821 in any of the SPARCS diagnosis fields or the E-code field.
- For ED visits and Hospitalizations that had a hospital admission date on or after October 1, 2015: A CO ED visit or hospitalization is defined as having a principal diagnosis with an International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) code of T5801, T5804, T5811, T5814, T582X1, T582X4, T588X1, T588X4, T5891, T5894 (in primary or other diagnosis codes), excluding those with primary or other codes indicating intentional violence (T5802, T5803, T5812, T5813, T582X2, T582X3, T588X2, T588X3, T5892, T5893).
- Population estimates used for calculating CO ED visits and hospitalization rates were taken from the U.S. Census Bureau. Annual population estimates for 2000-2010 are taken from the county intercensal tables and county intercensal datasets. Annual population estimates for 2011-2018 are from county population by characteristics 2010-2018. CO hospitalization rates were calculated per 100,000 residents.
- Non-NYS residents who were hospitalized in NYS for CO poisoning have been excluded.
- ED visits and hospitalizations for intentional CO poisoning have been excluded.
Mortality:
- Data on CO deaths are extracted from CDC-WONDER Multiple Cause of Death files. For more information on WONDER Multiple Cause of Death Files, visit the WONDER website.
- Each death certificate contains a single underlying cause of death, up to twenty additional multiple causes, and demographic data. CO deaths were extracted by querying all records with multiple cause of International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) code 'T58' along with an underlying cause of death that was unintentional or of undetermined intent.
- The age-adjusted rate produced in the WONDER MCD files is calculated by multiplying the age-specific death rate for each age group by the corresponding weight from the 2000 standard population, summing across all age groups, and then multiplying this result by 100,000 (or whatever multiplier is specified in the query).
- Age-Adjusted Death Rate = Sum of (Age Specific Death Rate * Standard Population weight) * 100,000.
- CO deaths by intentional causes have been excluded.
