Rate: Number of hospitalizations per 100,000 children under 5 years old.

Definition: Rate of hospitalizations due to asthma (primary diagnosis of asthma, defined by ICD-9 code 493 for January 2000 through September 2015; and ICD-10 codes J44 and J45 for the last quarter of 2015).

Source: New Jersey Uniform Billing Patient Summary Data (Hospital Discharges), Office of Health Care Quality and Assessment, New Jersey Department of Health

Rate: Number of emergency room visits per 100,000 children age 0 - 4 years old.

Definition: Rate of emergency room visits due to asthma (primary diagnosis of asthma, defined by ICD-9 code 493 for January 2000 through September 2015; and ICD-10 codes J44 and J45 for the last quarter of 2015).

Source: New Jersey Uniform Billing Patient Summary Data (Hospital Discharges), Office of Health Care Quality and Assessment, New Jersey Department of Health

Ratio: Sum of blood lead levels in each child aged 1-5 years over total number of children aged 1-5 years

Definition: Mean (average) blood lead levels in children aged 1-5 years

Data Sources: LeadTrax Database, Maternal, Child, and Community Health Services, New Jersey Department of Health

Ratio: Sum of blood lead levels in each child aged 1-5 years over total number of children aged 1-5 years

Definition: Mean (average) blood lead levels in children aged 1-5 years

Data Sources: LeadTrax Database, Maternal, Child, and Community Health Services, New Jersey Department of Health

Ratio: Percent of children aged 1-5 years who have an initial blood lead level greater than or equal to 10 mcg/dL

Definition: Percentage of children aged 1-5 years who have an initial blood lead level greater than or equal to 10 mcg/dL (micrograms per deciliter)

Data Source: LeadTrax; Maternal, Child, and Community Health Services, New Jersey Department of Health

Ratio: Percent of children aged 1-5 years who have an initial blood lead level greater than or equal to 10 mcg/dL

Definition: Percentage of children aged 1-5 years who have an initial blood lead level greater than or equal to 10 mcg/dL (micrograms per deciliter)

Data Source: LeadTrax; Maternal, Child, and Community Health Services, New Jersey Department of Health