Weaver L T, Steiner H
Arch Dis Child. 1984 Jul;59(7):649-52. doi: 10.1136/adc.59.7.649.
The bowel habit of 350 preschool children from a single general practice was studied. Eighty five per cent of 1 to 4 year olds eating a predominantly low fibre diet opened their bowels once or twice a day and 96% of the children fell within the range of three times a day to every other day. At all ages most children produced soft stools of about 25 ml volume. Mean intestinal transit time of 35 (10%) randomly selected children was 33 hours. There is a significant correlation between infrequency of bowel action, longer transit time, hard stools, and the passage of blood.
对来自一家普通诊所的350名学龄前儿童的排便习惯进行了研究。1至4岁的儿童中,85%的人主要食用低纤维饮食,他们每天排便一到两次,96%的儿童排便次数在每天三次至隔天一次的范围内。在所有年龄段,大多数儿童排出的是体积约为25毫升的软便。随机抽取的35名(10%)儿童的平均肠道转运时间为33小时。排便次数少、转运时间长、大便硬以及便血之间存在显著相关性。