Table 2.

Characteristics of patients who scored BIRAD grade IV (Extremely dense)

Characteristics	Value (s)
Age: Mean	38 years 3 months
	(SD ± 12 years)
Family history of breast cancer‡:
No	9
Yes	0
Missing value	1
Menopause:
No	9 (90%)
Yes	1 (10%)
Age at menarche:	Mean 14 years 3 months
	(SD ± 2 years)
Non-pregnant state	10
Number of pregnancies:
Mean	3.7
Range	1–8
Mammographic findings:
Benign lesions	7
Indeterminate	1
Suspicious	1
Missing value	1