PLOD1 and hydrops fetalis: The LH/HF ratio had a negative association with age (B -0.02, 95% CI -0.02 ~ -0.01, p < 0.001) and white blood count level (B -0.08, 95% CI -0.12 ~ -0.04, p < 0.001), but had a positive association with baseline BUN level (B 0.01, 95% CI 0.01 ~ 0.02, p < 0.001).