Journal of International Obstetrics and Gynecology ›› 2024, Vol. 51 ›› Issue (2): 189-193.doi: 10.12280/gjfckx.20230951

• Obstetric Physiology & Obstetric Disease: Original Article • Previous Articles     Next Articles

Decision Tree Analysis of Influencing Factors of Fetal Pleural Effusion

DONG Yue, ZHANG Hui-fang, GUO Xiao-pei, LI Zhu-yin, JI Ruo-nan, LUO Xiao-hua()   

  1. Department of Obstetrics, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
  • Received:2023-11-25 Published:2024-04-15 Online:2024-04-19
  • Contact: LUO Xiao-hua, E-mail: luoxiaohua620@163.com

Abstract:

Objective: To analyze the influencing factors of fetal pleural effusion complicated with edema by using decision tree model. Methods: The patients with fetal pleural effusion admitted to the Third Affiliated Hospital of Zhengzhou University from January 2016 to January 2023 were selected for the study. The 148 patients were divided into the fetal hydrops group (83 cases) and the fetal no hydrops group (65 cases) according to whether the fetus was edema or not. The χ2 test or t test was used for single factor test, and the factors with statistical difference between the two groups were screened out and incorporated into the decision tree model (classification regression tree, CRT). The factors influencing the prognosis of fetal pleural effusion were explored. Results: The results of univariate analysis showed that in the single-factor analysis, these factors for the first diagnosis of pregnancy week ( χ2=2.044, P=0.043), the location of fetal pleural effusion ( χ2=5.628, P=0.018), the severity of fetal pleural effusion ( χ2=12.955, P=0.001), the return of fetal pleural effusion during pregnancy ( χ2=11.704, P=0.001) between the two groups had statistically difference. The results of Logistic regression analysis suggested that late gestational week at first diagnosis (OR=0.909, 95%CI: 0.844-0.978, P=0.011) was a protective factor for hydrops fetalis, and severe pleural effusion (OR=6.045, 95%CI: 1.980-18.451, P=0.002) was a risk factor for hydrops fetalis. Decision tree analysis showed that the earlier the first gestational age, the severity of pleural effusion, and bilateral pleural effusion were the influencing factors for edema caused by fetal pleural effusion, and the strongest association was between the first gestational age and fetal pleural effusion leading to edema. Conclusions: Fetal pleural effusion is often accompanied with fetal edema. The earlier the first gestation week, the more serious the pleural effusion, and the bilateral pleural effusion of the fetus, the more likely it is to cause fetal edema and the worse the prognosis of the fetus.

Key words: Fetus, Pleural effusion, Decision trees, Hydrops fetalis, Fetal prognosis