目的　比较猝死综合征婴儿与对照组肺组织中尼古丁和可待因的浓度。方法　依据家庭成员吸烟状况 ,分别测定 SIDS(n=44 )和非 - SIDS(n=2 9)婴儿肺组织中尼古丁和可待因的浓度。结果　不考虑吸烟状态时 ,测定所有 SIDS和非 - SIDS患儿肺组织尼古丁的浓度 ,发现 SIDS组较非 - SID Objective To compare the concentrations of nicotine and codeine in the lungs of infants and controls with sudden death syndrome. Methods The concentrations of nicotine and codeine in the lungs of infants with SIDS (n = 44) and non-SIDS (n = 29) were determined according to the smoking status of their family members. Results Regardless of the state of smoking, the concentrations of nicotine in the lungs of all SIDS and non-SIDS children were determined, and it was found that in the SIDS group,