Sadre M, Karbasi K
Am J Clin Nutr. 1979 Sep;32(9):1948-54. doi: 10.1093/ajcn/32.9.1948.
One hundred five Iranian subjects, ranging in age from 4 months to 25 years, were tested for lactose absorption and tolerance. After ingesting a lactose dose, on the basis of low blood glucose response, 68% of the subjects were malabsorbers. Prevalence of lactose malabsorption increased with age, i.e., 31% of the children less than 3 years of age malabsorbed lactose, whereas 86% of adults did so. Clinical manifestations of lactose intolerance were shown by 39% of all subjects; of those who were lactose malabsorbers, only 57% manifested clinical symptoms. Among the lactose malabsorbers, the lowest prevalence of clinical symptoms occurred among the children less than 3 years of age and the highest in adults.
对105名年龄在4个月至25岁之间的伊朗受试者进行了乳糖吸收和耐受性测试。摄入乳糖剂量后，根据低血糖反应，68%的受试者存在吸收不良。乳糖吸收不良的患病率随年龄增长而增加，即3岁以下儿童中31%存在乳糖吸收不良，而成年人中这一比例为86%。所有受试者中有39%出现乳糖不耐受的临床表现；在乳糖吸收不良的受试者中，只有57%表现出临床症状。在乳糖吸收不良者中，临床症状患病率最低的是3岁以下儿童，最高的是成年人。
