Suls J, Wan C K, Blanchard E B
Department of Psychology, Spence Laboratories of Psychology, University of Iowa, Iowa City 52242.
Health Psychol. 1994 Mar;13(2):103-13. doi: 10.1037//0278-6133.13.2.103.
Four statistical strategies were used to evaluate whether occurrence of daily stressors increases lower gastrointestinal (GI) symptoms in irritable bowel syndrome (IBS) patients. Across-subject concurrent correlations between weekly stress and symptoms were positive but casually ambiguous and obscured between- and within-subject and occasion relationships. Multiple regressions assessing (weekly and daily) relations showed that prior symptoms predicted subsequent symptoms but that prior and concurrent daily stress had no consistent effects. Idiographic correlations also showed little evidence for a relationship between stress and symptoms. Daily stress did not appear to increase GI symptoms in IBS patients on a general basis. Daily recording methodology, in conjunction with within-subject analytic strategies, is proposed as an innovative approach to examine relations between stress and physical symptomatology.
采用四种统计策略来评估日常应激源的出现是否会增加肠易激综合征（IBS）患者的下消化道（GI）症状。每周应激与症状之间的受试者间并发相关性为正，但因果关系不明确，且受试者间、受试者内以及不同场合之间的关系相互混淆。评估（每周和每日）关系的多元回归分析表明，先前的症状可预测随后的症状，但先前和同时存在的日常应激并无一致的影响。个体内相关性也几乎没有显示出应激与症状之间存在关联的证据。一般而言，日常应激似乎并不会增加IBS患者的GI症状。建议将每日记录方法与受试者内分析策略相结合，作为一种检验应激与身体症状之间关系的创新方法。
