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Bishop Scoring System

Modified from Bishop EH. Pelvic scoring for elective induction. Obstet Gynecol 1964;24:267
Source: ACOG Practice Bulletin, Number 10, November 1999

		FACTOR
SCORE	DILATATION (cm)	EFFACEMENT (%)	STATION*	CERVICAL CONSISTENCY	POSITION OF CERVIX
0 1 2 3	Closed 1-2 3-4 5-6	0-30 40-50 60-70 80	-3 -2 -1, 0 +1, +2	Firm Medium Soft —	Posterior Mid-position Anterior —

* Station reflects a -3 to +3 scale

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