Chemical and stress exposures assessed included 69 human and animal studies on developmental outcomes from combined exposure.

The sum of the number of studies for either exogenous chemical or psychosocial stress is greater than 69 because some studies reported more than one stressor variable. Numbers in parentheses indicate the number of studies which were included in the quantitative review. Under the stress/stressor exposure, “multiple stressors” refers to a random schedule administered in two rat studies consisting of exposure to each of the following stressors: mouse cage, food & water deprivation, empty water bottle, damp bedding, cage tilting, noise, crowding, alone in cage, alone in cage, no bedding and new partner [92, 93].

因部分研究同时报告了多种应激源变量，针对外源性化学应激与心理社会应激的研究总数量超过69项。括号内的数字代表纳入本次定量综述的研究数量。在应激/应激源暴露相关描述中，"多重应激源"指两项大鼠实验所采用的随机刺激方案，该方案要求受试动物依次暴露于下述各类应激源：鼠笼暴露、禁食禁水、空水瓶刺激、潮湿垫料、笼架倾斜、噪音刺激、拥挤饲养、单独饲养、单独饲养、无垫料饲养以及更换笼伴[92, 93]。