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Table 1 Patient demographics and clinical characteristics before and after ultrasound intervention

From: The implementation of routine procedural transvaginal sonography to decrease retained products of conception: a quality improvement initiative

  Pre intervention
N = 130
Post intervention
N = 95
p value
Age at time of procedure (median, range) 32 (18–43) 33 (19–48) 0.64
Gravidity (median, range) 2 (1–8) 3 (1–10) 0.10
Parity (median, range) 1 (0–6) 1 (0–6) 0.19
Previous cesarean (N, %) 17, 13.1 13, 14.0 0.80
Previous Dilation and Curettage procedures (N, %) 29, 22.3 15, 16.1 0.30
Previous medical abortion or medical management of missed abortion (N, %) 23, 17.7 21, 22.3 0.40
Gestational Age in weeks at time of procedure by US (median, range) 7 (4–12) 7 (4–14) 0.67
Uterine Infection at presentation (N, %) 1, 0.8 2, 2.1 0.39
Missed Abortiona (N, %) 110, 84.6 68, 71.6 0.018
Incomplete Abortiona (N, %) 13, 10 26, 27.4  < 0.001
Molar Pregnancya (N) 2 3 0.70
  1. aCharacterizations of type of abortion or type of pregnancy are not mutually exclusive, and patients may be classified into more than one group