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. 2021 Jul 6;21:487. doi: 10.1186/s12884-021-03955-7

Table 5.

Subgroup analysis of women who did and did not have fluid in the cavity

Parameter Non-cavity fluid group (n = 49) Cavity fluid group (n = 25) Crude OR (95%CI) Adjusted OR (95%CI)
Live birth 22.4%(11/49) 20.0%(5/25) 0.86(0.26 ~ 2.83) 1.06(0.26 ~ 4.34)
Positive hCG test 38.8%(19/49) 28%(7/25) 0.61(0.21 ~ 1.74) 0.76(0.20 ~ 2.85)
Clinical pregnancy 32.7%(16/49) 24%(6/25) 0.65(0.21 ~ 1.94) 0.96(0.24 ~ 3.77)
Mean implantation rate (mean ± SD) 0.26 ± 0.39 0.22 ± 0.41 0.95(0.79 ~ 1.15) 1.01(0.84 ~ 1.20)
Early abortion 4/16 0/6
Ectopic pregnancy 0/16 1/6

(adjusted for age, infertility cause, infertility category, BMI, endometrial thickness at the hCG trigger, fertilization methods, the number of embryos transferred, high-quality embryos transferred, and day of transfer)