nemsqar (version 1.0.0)

safety_02: Safety-02 Calculation

Description

The safety_02 function calculates the Safety-02 metric, evaluating the proportion of emergency medical calls involving transport where no lights and sirens were used. This function categorizes the population into adult and pediatric groups based on their age, and summarizes results with a total population count as well.

Usage

safety_02(
  df = NULL,
  patient_scene_table = NULL,
  response_table = NULL,
  disposition_table = NULL,
  erecord_01_col,
  incident_date_col = NULL,
  patient_DOB_col = NULL,
  epatient_15_col,
  epatient_16_col,
  eresponse_05_col,
  edisposition_18_col,
  edisposition_28_col,
  transport_disposition_cols,
  ...
)

Value

A tibble summarizing results for three age groups (< 10 yrs, 10–65 yrs, and >= 65 yrs) with the following columns:

measure: The name of the measure being calculated. pop: Population type (< 18 yrs, >= 18 yrs, all). numerator: Count of incidents from a 911 request during which lights and sirens were not used during patient transport. denominator: Total count of incidents. prop:Proportion of incidents from a 911 request during which lights and sirens were not used during patient transport. prop_label: Proportion formatted as a percentage with a specified number of decimal places.

Arguments

df

A data frame where each row is an observation, and each column represents a feature.

patient_scene_table

A data.frame or tibble containing only epatient and escene fields as a fact table.

response_table

A data.frame or tibble containing only the eresponse fields needed for this measure's calculations.

disposition_table

A data.frame or tibble containing only the edisposition fields needed for this measure's calculations.

erecord_01_col

The column representing the EMS record unique identifier.

incident_date_col

Column that contains the incident date. This defaults to NULL as it is optional in case not available due to PII restrictions.

patient_DOB_col

Column that contains the patient's date of birth. This defaults to NULL as it is optional in case not available due to PII restrictions.

epatient_15_col

Column giving the calculated age value.

epatient_16_col

Column giving the provided age unit value.

eresponse_05_col

Column giving response codes, identifying 911 responses.

edisposition_18_col

Column giving transport mode descriptors, including possible lights-and-sirens indicators.

edisposition_28_col

Column giving patient evaluation and care categories for the EMS response.

transport_disposition_cols

One or more unquoted column names (such as edisposition.12, edisposition.30) containing transport disposition details.

...

Additional arguments for summary calculation, if needed.

Author

Nicolas Foss, Ed.D., MS

Examples

# Synthetic test data
  test_data <- tibble::tibble(
    erecord_01 = c("R1", "R2", "R3", "R4", "R5"),
    epatient_15 = c(34, 5, 45, 2, 60),  # Ages
    epatient_16 = c("Years", "Years", "Years", "Months", "Years"),
    eresponse_05 = rep(2205001, 5),
    edisposition_18 = rep(4218015, 5),
    edisposition_28 = rep(4228001, 5),
    edisposition_30 = rep(4230001, 5)
  )

  # Run function
  safety_02(
    df = test_data,
    erecord_01_col = erecord_01,
    epatient_15_col = epatient_15,
    epatient_16_col = epatient_16,
    eresponse_05_col = eresponse_05,
    edisposition_18_col = edisposition_18,
    edisposition_28_col = edisposition_28,
    transport_disposition_cols = edisposition_30
  )