Table 4.

The St. Mark's (Vaizey) score

Type of incontinence	Frequency
	Never	Rarely	Sometimes	Usually	Always
Solid	0	1	2	3	4
Liquid	0	1	2	3	4
Gas	0	1	2	3	4
Lifestyle alteration	0	1	2	3	4
				No	Yes
Need to wear a pad or plug				0	2
Taking constipating medicines				0	2
Lack of ability to defer defecation for 15 minutes				0	4

Never = no episodes in the past four weeks; Rarely = 1 episode in the past four weeks;

Sometimes = >1 episode in the past four weeks but <1 a week; Usually = 1 or more episodes a week but <1 a day; Always = 1 or more episodes a day.

Add one score from each row.

Minimum score is 0 = perfect continence; maximum score is 24 = totally incontinent.