Identifying the key influencing factors of psychological birth trauma in primiparous women with interpretable machine learning.
Yuze Wu, Fengling Li, Huilan Shu and 5 others
PMID 40529457WHAT IT FOUND
Pain scores above 6 and anxiety scores above 2 were linked to more psychological birth trauma in first-time mothers.
Resilience scores above 20 were linked to less trauma.
Key findings
01The best model identified intrapartum pain, anxiety, postpartum pain, resilience, and planned pregnancy as the most important factors.
02Intrapartum and postpartum pain were associated with higher psychological birth trauma scores.
03Higher resilience was associated with lower psychological birth trauma scores.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The design was cross-sectional, so it cannot show that pain, anxiety, resilience, or planned pregnancy caused psychological birth trauma. The sample was convenience-sampled first-time mothers from four hospitals in Sichuan, China. This restricts generalizability. Participants were only aged 18 to 40. The direction for planned pregnancy was inconsistent. The correlation analysis reported a positive association with trauma, while the SHAP analysis reported lower risk with planned pregnancy. The Childbirth Trauma Index had not previously been used or tested in Chinese primiparous women.
Declared interests
Funded by the Sichuan Province Nursing Scientific Research Project Plan and the 2022 Municipal-University Science and Technology Strategic Cooperation Special Fund of Nanchong Science and Technology Bureau. The authors declared no conflict of interest.
The easy way to misread this
Do not treat pain above 6 or anxiety above 2 as proven causes of birth trauma. The study is cross-sectional and based on questionnaire data, so it shows associations and model patterns, not tested clinical effects.