Incidence, prognosis, and perinatal outcomes of and risk factors for severe twin–twin transfusion syndrome with right ventricular outflow tract obstruction in the recipient twin after fetoscopic laser photocoagulation

Table 4 Predisposing factors for recipient RVOTO in severe TTTS cases

variable	odds ratio (95% CI)	P
Whether Quintero Stage IV	7.206 (2.226~23.328)	0.001
Gestational age at operation (week)	0.779 (0.609~0.996)	0.046

RVOTO Right ventricular outlet obstruction, TTTS Twin-twin transfusion syndrome
The odds ratios of the variables were expressed as odds ratio (95% confidence interval)
Results were calculated by Forward Stepwise (Conditional) model
Variables to enter the mode when the p-value was less than 0.05 and removed when the probability value was more than 0.1

ISSN: 1471-2393