Cross-sectional associations between sleep duration, sedentary time, physical activity, and adiposity indicators among Canadian preschool-aged children using compositional analyses

Abstract Background Sleep duration, sedentary behaviour, and physical activity are three co-dependent behaviours that fall on the movement/non-movement intensity continuum. Compositional data analyses provide an appropriate method for analyzing the association between co-dependent movement behaviour data and health indicators. The objectives of this study were to examine: (1) the combined associations of the composition of time spent in sleep, sedentary behaviour, light-intensity physical activity (LPA), and moderate- to vigorous-intensity physical activity (MVPA) with adiposity indicators; and (2) the association of the time spent in sleep, sedentary behaviour, LPA, or MVPA with adiposity indicators relative to the time spent in the other behaviours in a representative sample of Canadian preschool-aged children. Methods Participants were 552 children aged 3 to 4 years from cycles 2 and 3 of the Canadian Health Measures Survey. Sedentary time, LPA, and MVPA were measured with Actical accelerometers (Philips Respironics, Bend, OR USA), and sleep duration was parental reported. Adiposity indicators included waist circumference (WC) and body mass index (BMI) z-scores based on World Health Organization growth standards. Compositional data analyses were used to examine the cross-sectional associations. Results The composition of movement behaviours was significantly associated with BMI z-scores (p = 0.006) but not with WC (p = 0.718). Further, the time spent in sleep (BMI z-score: γ sleep  = −0.72; p = 0.138; WC: γ sleep  = −1.95; p = 0.285), sedentary behaviour (BMI z-score: γ SB  = 0.19; p = 0.624; WC: γ SB  = 0.87; p = 0.614), LPA (BMI z-score: γ LPA  = 0.62; p = 0.213, WC: γ LPA  = 0.23; p = 0.902), or MVPA (BMI z-score: γ MVPA  = −0.09; p = 0.733, WC: γ MVPA  = 0.08; p = 0.288) relative to the other behaviours was not significantly associated with the adiposity indicators. Conclusions This study is the first to use compositional analyses when examining associations of co-dependent sleep duration, sedentary time, and physical activity behaviours with adiposity indicators in preschool-aged children. The overall composition of movement behaviours appears important for healthy BMI z-scores in preschool-aged children. Future research is needed to determine the optimal movement behaviour composition that should be promoted in this age group

Relative Abundances of Low Energy Cosmic Ray Nuclei of Z<img src='http://www.niscair.res.in/jinfo/greaterequal.gif' border=0>7 Using Plastic Detectors

132-135An attempt has been made to study the charge composition of low energy primary cosmic rays of 7Z30, using cellulose nitrate plastic detector. Charge resolution of 0·2 charge units for nuclei of charge 7 are depicted in the form of a histogram

Quality Measures for the Care of Pediatric Patients with Obstructive Sleep Apnea

The Board of Directors of the American Academy of Sleep Medicine (AASM) commissioned a Task Force to develop quality measures as part of its strategic plan to promote high quality patient-centered care. Among many potential dimensions of quality, the AASM requested Workgroups to develop outcome and process measures to aid in evaluating the quality of care of five common sleep disorders: insomnia, obstructive sleep apnea in adults, obstructive sleep apnea in children, restless legs syndrome, and narcolepsy. This paper describes the rationale, background, general methods development, and considerations in implementation of these quality measures in obstructive sleep apnea (OSA) in children. This document describes measurement methods for five desirable process measures: assessment of symptoms and risk factors of OSA, initiation of an evidence-based action plan, objective evaluation of high-risk children with OSA by obtaining a polysomnogram (PSG), reassessment of signs and symptoms of OSA within 12 months, and documentation of objective assessment of positive airway pressure adherence. When these five process measures are met, clinicians should be able to achieve the two defined outcomes: improve detection of childhood OSA and reduce signs and symptoms of OSA after initiation of a management plan. The AASM recommends the use of these measures as part of quality improvement programs that will enhance the ability to improve care for patients with childhood OSA. CITATION: Kothare SV, Rosen CL, Lloyd RM, Paruthi S, Thomas SM, Troester MM, Carden KA. Quality measures for the care of pediatric patients with obstructive sleep apnea. J Clin Sleep Med 2015;11(3):385–404

A comparative prospective randomised controlled study for mesh fixation by cyanoacrylate glue versus prolene sutures in patients undergoing Lichtenstein hernioplasty

Background: Inguinal hernia repair is one of the most commonly performed procedures by general surgeons. Cyanoacrylate is the generic name for a family of fast acting adhesives. The aim of the present study done in Department of General Surgery, Safdarjung Hospital, New Delhi was to compare the newer emerging technique of mesh fixation.Methods: A total of sixty patients were included in the present study and were allotted in case and control group randomly by sealed envelope technique. In case (study) group, all the patients underwent mesh fixation by cyanoacrylate glue and in control group, by prolene 3-0 sutures.Results: Most frequency in age group 31-40 yrs, males:females ratio &gt;1 and right sided inguinal hernia was more common. Bi-lateral hernia was common in elderly. Indirect: direct ratio 4.5:1. Operating time period for the patients of the case (study) group is less than control group. P value of post-operative pain in immediate post-operative period (day 1 and 2) and POD 30, 60 and 90 was not of clinical significance whereas the p-value on 6,120,150 and 180 post op day was of clinical significance. In our study, there was a case of incidental observation: a) reaction due to use of cyanoacrylate glue, b) rejection of mesh for which mesh had to be removed.Conclusions: There is no statistically significant difference between mesh fixation with cyanoacrylate glue and mesh fixation by prolene suture techniques in immediate post-operative pain. Statistically significant difference favoring mesh fixation by cyanoacrylate glue technique was seen with respect to operating time and post-operative groin pain with increasing post-operative duration.</jats:p