Records of children under 19 years receiving all levels of inpatient care discharged during 2010 with at least a 24-hour length of stay (study population n = 12,765) were eligible for randomization.
Third, the studies included were heterogeneous in terms of study population, length of each study, number of patients of different studies, basal condition, associated comorbidities and the way of evaluating conjunctival hyperaemia.
The study database contained a record for each study describing the following aspects: relevant publications; study title; study design; sexes considered; age range; details of the population studied; location; timing; length of follow-up; definition of lung cancer, and whether mortality or incidence.
The randomised treatment continued for a minimum of six months and a maximum of 12 months; the median length of study treatment in the overall population was 9.1 months.
The average length of each study was about six months.
Additional aging markers could be measured in parallel to telomere length, in the context of future human population studies such as p16 and 53BP1 levels, to be able to define an "aging signature".
Sequence comparisons and restriction fragment length polymorphism analysis of parasite crosses and population studies suggest that both small (~100 200 nt) and larger recombination events contribute to var gene evolution [ 19, 22, 23].
Such criteria typically include study design, population studied, year of study, outcomes assessed, and length of follow-up.
All the 18 studies included were briefly described regarding important characteristics, including 'type of physical exercise intervention, comparator, length of intervention, data collection, study population, country, setting, year(s) of the study, study design, type of economic evaluation'and key economic findings.
Attrition rates for the studies ranged from 9 to 73% depending upon the population studied, the nature of the intervention and the length of the follow-up period.
