objective the purpose of this study was to determine the prevalence and the most common risk factors of motor developmental delay in infants. materials & methods following ethical approval, a study was carried out on the prevalence and risk factors of infants with motor developmental delay. the first stage was conducted through a cross-sectional study to determine the prevalence of motor develo...

background: prematurity is the main cause of death in infants under one years of age and is the main reason for nicu hospitalization. the stressful environment of nicu exposes preterm infants to inappropriate stimuli. this study aimed to determine and compare the mean of heart rate and oxygen saturation of premature infants before and during a designed program in nicu. methods: in a clinical tr...

background: feeding intolerance is a common problem among premature infants. there is limited information on the safety and effects of oral probiotic supplements, especially products containing lactobacillus reuteri, and the incidence of necrotizing enterocolitis (nec) in low birth weight preterm infants. this study aimed to evaluate the effects of lactobacillus reuteri on the gastrointestinal ...

background: to determine whether using mechanical ventilation in neonatal intensive care unit (nicu) influences motor development of low birth weight (lbw) infants and to compare their motor development with normal birth weight (nbw) infants at the age of 8 to 12 months using peabody developmental motor scale 2 (pdms-2). methods: this cross sectional study was conducted on 70 lbw infants in two...

Background & Aims: The purpose of the present study was to compare feeding problems, infant eating behavior, and feeding styles between infants with and without feeding problems according to their mothers’ narratives. Methods: In this casual-comparative study, 50 mother-infant dyads were selected using convenient sampling. The infants’ ages ranged between 6 to...

Abstract The COVID-19 pandemic represents a collective trauma that may have enduring stress effects during sensitive periods, such as pregnancy. Prenatal result in epigenetic signatures of stress-related genes (e.g., the serotonin transporter gene, SLC6A4 ) turn influence infants’ behavioral development. In April 2020, we launched longitudinal cohort study to assess and vestiges COVID-19-relate...

Existing standard statistical procedures do not seem to fulfill the needs of the researcher in global quality-of-life (QOL) research, because the most interesting question seems to be the exact size of statistical covariations. A method is necessary if we are to isolate the most important factors connected to quality of life among the thousands of possible factors in life. We have developed a n...

This paper proposes a class of optimal design criteria for prediction in linear regression models with r responses based on the volume of the rectangular confidence region, termed RL-optimality. A general equivalence theorem and a geometrical characterization of the RL r -optimal design are established, which are used to obtain or verify the RL r optimality. Several examples are given for illus...

The Laboratory Standardization Panel of the National Cholesterol Education Program recommends that cholesterol method accuracy ideally be within 3% of the true value determined by the Abell-Kendall Reference Method, a component of the National Reference System for Cholesterol. As one of the Abell-Kendall network laboratories established to facilitate cholesterol standardization, the approach we...

This article describes the plreg Stata command, which implements the difference-based algorithm for estimating the partial linear regression models.