Possible significance of degeneration and decreased expression of progesterone receptor in postmenopausal uterine leiomyoma

Table 1 Explanation of Allred score

	Observation	Score
Proportion score (PS)
Proportion of positive cells	None	0
	< 1/100	1
	1/100–1/10	2
	1/10–1/3	3
	1/3–2/3	4
	> 2/3	5
Intensity score (IS)
	Negative	0
	Weak	1
	Intermediate	2
	Strong	3
Total score (TS)	PS + IS	0, 2–8

A proportion score (PS) represents the estimated proportion of positive tumor cells (range, 0–5). An intensity score (IS) estimates the average staining intensity of positive tumor cells (range, 0–3). The PS and IS are added to obtain a total score (TS) (range, 0, 2–8)

ISSN: 1472-6874