Table 1 Patient characteristics

From: How often does office hysteroscopy reveal pathology not previously noted on transvaginal ultrasound—a look at two typical reproductive endocrinology patient groups, including failed IVF–ET patients

	Group A	Group B
Number of patients	40	40
Range of ages	27–41	20–41
Average age	34,7	34,37
Previous ART cycles (n)	2–9	0
Primary sterility	25 (=62.5%)	25 (=62.5%)
Secondary sterility	15 (=37.5%)	15 (=37.5%)
Pathologic tubal factor	9 (=22.5%)	6 (=15.0%)
Idiopathic sterility	6 (=15.0%)	18 (=45%)
OAT syndrome^a	25 (=62.5%)	6 (=15.0%)
Recurrent miscarriage	0	10 (=25.0%)

^aOligoasthenoteratozoospermia

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