a negative trendP = 0.113
Further multiple linear regression analysis, controlling for gestational age, birth weight, and CRP, showed that serum DUOX2 levels remained independently positively correlated with RDW (β=0.86, [95% CI 0.03–1.69], P = 0.043) and LDH (β=74.7, [95% CI 33.9–115.4], P = 0.002), while showing a negative trend with albumin (β= -0.93, [95% CI -2.11–0.26], P = 0.113), though this did not reach statistical significance. 3.5 Analysis of risk factors for NEC in preterm infants with GA <32 weeks As shown in Table 3 , multifactorial analysis using logistic regression analysis of risk factors with significant di