ich_score: Intracerebral Hemorrhage (ICH) Score

In cliot: Clinical Indices and Outcomes Tools

Intracerebral Hemorrhage (ICH) Score

Description

Calculates the ICH Score to estimate 30-day mortality in patients with spontaneous intracerebral hemorrhage. The score is a simple clinical grading scale ranging from 0 to 6, derived from the Glasgow Coma Scale (GCS), ICH volume, presence of intraventricular hemorrhage (IVH), infratentorial origin, and age.

Usage

ich_score(gcs_score, ich_volume_cm3, intraventricular_hemorrhage,
          infratentorial_origin, age_years)

Arguments

gcs_score	Numeric. Glasgow Coma Scale score on admission (3-15). 3-4: +2 pts. 5-12: +1 pt. 13-15: 0 pts.
ich_volume_cm3	Numeric. Volume of the hematoma in cubic centimeters. (>= 30 cm3 adds 1 point).
intraventricular_hemorrhage	Numeric (0 or 1). Presence of intraventricular hemorrhage. (1 = Yes, +1 point).
infratentorial_origin	Numeric (0 or 1). Is the hemorrhage infratentorial in origin (e.g., brainstem, cerebellum)? (1 = Yes, +1 point).
age_years	Numeric. Patient age in years. (>= 80 years adds 1 point).

Value

A list containing:

ICH_Score	The calculated total score (Range 0-6).
Est_30_Day_Mortality	Estimated 30-day mortality percentage based on the derivation cohort.

References

Hemphill JC 3rd, Bonovich DC, Besmertis L, Manley GT, Johnston SC. The ICH score: a simple, reliable grading scale for intracerebral hemorrhage. Stroke. 2001;32(4):891-897. doi:10.1161/01.str.32.4.891

Examples

# Example 1: High Mortality
# GCS 4 (+2), Vol 40 (+1), IVH Yes (+1), Infratentorial Yes (+1), Age 85 (+1)
# Score = 6
ich_score(4, 40, 1, 1, 85)

# Example 2: Low Mortality
# GCS 15 (0), Vol 10 (0), No IVH (0), Supratentorial (0), Age 60 (0)
# Score = 0
ich_score(15, 10, 0, 0, 60)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.