cliot (version 1.0.0)

vaco_index_score: Veterans Health Administration COVID-19 (VACO) Index

Description

Calculates the VACO Index to estimate the 30-day all-cause mortality risk for patients with COVID-19. The index is based on age, sex, and the Charlson Comorbidity Index (CCI) components.

Usage

vaco_index_score(age, sex, myocardial_infarction, congestive_heart_failure,
                 peripheral_vascular_disease, cerebrovascular_disease, dementia,
                 chronic_pulmonary_disease, rheumatologic_disease,
                 peptic_ulcer_disease, liver_disease, diabetes, hemiplegia,
                 renal_disease, cancer, aids)

Value

A list containing:

VACO_Index_Mortality_30_Day

The estimated 30-day mortality percentage.

Inputs

A summary of the provided inputs and the calculated Charlson Comorbidity Index (CCI) score.

Arguments

age

Numeric. Patient age in years.

sex

String. "male" or "female".

myocardial_infarction

Numeric (0 or 1). History of myocardial infarction.

congestive_heart_failure

Numeric (0 or 1). History of congestive heart failure.

peripheral_vascular_disease

Numeric (0 or 1). History of peripheral vascular disease.

cerebrovascular_disease

Numeric (0 or 1). History of cerebrovascular disease (e.g., stroke or TIA).

dementia

Numeric (0 or 1). History of dementia.

chronic_pulmonary_disease

Numeric (0 or 1). History of chronic pulmonary disease (e.g., COPD).

rheumatologic_disease

Numeric (0 or 1). History of connective tissue disease.

peptic_ulcer_disease

Numeric (0 or 1). History of peptic ulcer disease.

liver_disease

String. "none", "mild" (chronic hepatitis or cirrhosis without portal hypertension), or "moderate_severe" (cirrhosis with portal hypertension or varices).

diabetes

String. "none", "uncomplicated", or "complicated" (end-organ damage).

hemiplegia

Numeric (0 or 1). History of hemiplegia or paraplegia.

renal_disease

Numeric (0 or 1). Moderate to severe renal disease.

cancer

String. "none", "localized" (any tumor, leukemia, lymphoma), or "metastatic" (metastatic solid tumor).

aids

Numeric (0 or 1). History of AIDS.

References

King JT Jr, Yoon JS, Rentsch CT, et al. Development and validation of a 30-day mortality index based on pre-existing medical administrative data from 13,323 COVID-19 patients: The Veterans Health Administration COVID-19 (VACO) Index. PLoS One. 2020;15(11):e0241825. doi:10.1371/journal.pone.0241825

Examples

# Example 1: High Risk
# 75yo Male, Complicated Diabetes, CHF
vaco_index_score(75, "male", 0, 1, 0, 0, 0, 0, 0, 0, "none", "complicated", 0, 0, "none", 0)

# Example 2: Low Risk
# 40yo Female, No comorbidities
vaco_index_score(40, "female", 0, 0, 0, 0, 0, 0, 0, 0, "none", "none", 0, 0, "none", 0)