bishop_score_induction: Bishop Score for Vaginal Delivery / Induction of Labor

In cliot: Clinical Indices and Outcomes Tools

Bishop Score for Vaginal Delivery / Induction of Labor

Description

Calculates the Bishop Score to assess cervical readiness for induction of labor. The score evaluates five parameters: Dilation, Effacement, Station, Consistency, and Position of the cervix. A higher score indicates a more favorable cervix and a higher likelihood of successful vaginal delivery.

Usage

bishop_score_induction(dilation_cm, effacement_percent, station,
                       consistency, position)

Arguments

dilation_cm	Numeric. Cervical dilation in centimeters. 0 cm: 0 pts. 1-2 cm: 1 pt. 3-4 cm: 2 pts. >= 5 cm: 3 pts.
effacement_percent	Numeric. Cervical effacement percentage. 0-30%: 0 pts. 40-50%: 1 pt. 60-70%: 2 pts. >= 80%: 3 pts.
station	Numeric. Fetal station relative to ischial spines (-3 to +2). -3: 0 pts. -2: 1 pt. -1, 0: 2 pts. +1, +2: 3 pts.
consistency	String. Consistency of the cervix. Options: "firm" (0 pts), "medium" (1 pt), "soft" (2 pts).
position	String. Position of the cervix. Options: "posterior" (0 pts), "midposition" (1 pt), "anterior" (2 pts).

Value

A list containing:

Bishop_Score	The calculated total score (Range 0-13).
Interpretation	Clinical assessment of inducibility (Favorable > 8, Unfavorable < 6).

References

Bishop EH. Pelvic scoring for elective induction. Obstet Gynecol. 1964;24:266-268.

Examples

# Example 1: Unfavorable Cervix
# Closed, 30% effaced, -3 station, Firm, Posterior
# Score = 0
bishop_score_induction(0, 30, -3, "firm", "posterior")

# Example 2: Favorable Cervix
# 4cm dilated (2), 60% effaced (2), -1 station (2), Soft (2), Anterior (2)
# Score = 10
bishop_score_induction(4, 60, -1, "soft", "anterior")

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