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Table 3 Characteristics and complications of the intervention groups

From: Ectopic pregnancy: when is expectant management safe?

  Group I (N = 33) Group IIa (N = 130) P Test
Immediate intervention Unsuccessful expectant management
Laparotomiesa 4 11 NS Cramer’s V
Time surgery took place Time of surgery during the day NS Cramer’s V
Length of surgery (hh:mm)b 01:02 ± 00:03 01:04 ± 00:02 NS Mann–Whitney
Tubal rupture a 0 1 NS Cramer’s V
Persistent trophoblast a 0 9 NS Cramer’s V
(No decline of beta-hCG levels)
Conversions a 2 9 NS Cramer’s V
Heavy blood loss (>1 l) a 1 2 NS Cramer’s V
Conversions due to heavy blood loss a 1 0 <.05 Cramer’s V
  1. Comparison of the characteristics and complications of the two intervention groups. As explained in the “Methods” section, only asymptomatic patients of group I are analyzed (because of a presumed association between acute presentation and higher complication rates), whereas in group IIa, all patients are analyzed (because an increased risk is a direct consequence of expectant management)
  2. a N
  3. bMean ± SD