Looking at the HAZ for instance, the CDFs for the unmatched rural children and matched children are observationally indistinguishable, with no discernible pattern of dominance by one sample over the other.
Costs for matched children were from 3 months post-delivery.
Chondroblasts isolated from vertebral growth plates of matched children were used as controls.
A pilot study involving 40 age-matched children was carried out prior to the fieldwork.
The parents of all children screening positive and the randomly matched children screening negative, are telephoned to invite them into the longitudinal study.
Interestingly, the results indicate that if the distributions of characteristics of matched rural children and matched urban children were to be equalized this would worsen the gap.
Importantly, when desires are matched, children can pass the task by responding to their own rather than the protagonist's desire.
In the case/control study, 660 children with moderate-to-severe diarrhea (cases), along with 660 matched children without diarrhea (controls), were recruited in each of 3 age strata (0 11, 12 23, and 24 59 months) in each country.
Contests that seem odd to the modern mind, such as those in which the physically impaired were matched against children, were replaced by horse races in which fleeter steeds were handicapped, a notion of equality that led eventually to age and weight classes (though not to height classes) in many modern sports.
Thirdly, closely matched control children are included which should minimize the effect of modifying factors that could be involved in the process of subject selection.
