Table 1.

Stool samples were examined from children enrolled in the study at each site by January 1, 2010^*

^*These stool samples were analyzed for three stool markers neopterin (NEO), myeloperoxidase (MPO), and alpha-anti-trypsin (AAT) when stool collection occurred in the absence of a clinical diarrheal episode or the administration of lactulose as part of lactulose mannitol (L/M) testing as specified in the columns, which indicate age of child in months. The outcome measured was changed in LAZ or length over the subsequent 6-month interval. Analysis revealed that markers at the different ages predicted growth to the same degree and so the models were simplified across age categories at which the stool was obtained.