Results The incidence of VAP in our NICU was 42%,related risk factors of VAP were gestational age,time of ventilation,length of stay,reintubation.

• 结果我院NICU发生VAP为42%25,VAP发生的主要易感因素为胎龄,特别是极低出生体重儿,机械通气应用时间、住院时间及再插管情况等。