Clinical characteristics of infants in preterm cohort A.

&Up to transfer to peripheral centre or discharge home.*Based on neonates alive at 36 weeks PMA.†Differences considered statistically significant are underlined.£Differences were not statistically significant (p>0.05) based on non-parametric Mann-Whitney U testing. NC = Not calculated.& 可转诊至外周医疗中心或出院返家。* 基于校正胎龄（Postmenstrual Age, PMA）达36周的存活新生儿。† 具有统计学显著性的差异已下划线标注。£ 基于非参数曼-惠特尼U（Mann-Whitney U）检验，差异无统计学显著性（p>0.05）。NC = 未计算（Not calculated）。