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Showing 1 to 20 of 110 for “"interquartile range"”.
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The Interquartile Range: Theory and Estimation.
<p>The interquartile range (IQR) is used to describe the spread of a distribution. In an introductory statistics course, the IQR might be introduced as simply the “range within which the middle half of the data points lie.” In other words, it is the distance between the two quartiles, …
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Platelet function Analyzer; closure times in children with congenital cyanotic heart disease A prospective observational pilot study
Objectives: To establish the median and interquartile range or the mean and standard deviation for closure times , with the CADP and CEPI cartridges for children with CCHD and to compare this to normal children. Design: Prospective observational pilot study Setting: Red Cross War Memorial …
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Efficacy of single fixed dose of radioiodine (I-131) therapy in patients with hyperthyroidism at Groote Schuur Hospital
… first RAI therapy appeared to be younger (median(interquartile range) age 39(16), p= 0.03), have severe hyperthyroidism as demonstrated by higher pre-treatment FT4 (median(interquartile range) 27 pmol/L(30.6), p= 0.05) and high pertechnetate uptake (median(interquartile range) uptake 9.9%(14), p= …
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Mid-Term Outcome Of A Decade Of Delayed Total Cavopulmonary Connection Completion Strategy At Red Cross War Memorial Children's Hospital.
… The median age at the time of operation was 9 [Interquartile range: 7 – 11] years. The median time interval between the bidirectional Glenn shunt and TCPC procedure was 6 [IQR: 4 - 9] years. The median followup was 24 [Interquartile range: 12 – 43] months. Results: Most common postoperative …
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Machine-Learning based Ship Traffic Prediction in the Suez Canal
… to ground-truth AADT values falling within the interquartile range of predictions for all validation sets. Furthermore, although the interquartile ranges have considerable variation, the 2-stage model with LSTM had a mean absolute percentage error (MAPE) of 13.2% based on its median AADT …
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Transport of critically ill children in a resource-limited setting
… and critical adverse events. Data are median (interquartile range, IQR). The transfers of 202 children, median age 2.8 months (1.1-14), median weight 3.5 kg (2.5-8.1) were analysed.
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Quantitative evaluation of the HTC Vive virtual reality system in controlled movement.
… distances traveled was 0.74 millimeters with an interquartile range (IQR) of 0.66 millimeters for all room-scale calibration trials and 0.63 millimeters with an IQR of 0.29 millimeters for all standing calibration trials. The mean difference in angle rotated was 0.46° with an IQR of 0.81° for all …
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Injury risk assessment and the incidence of musculo-skeletal injuries in recreational long-distance runners over a 3-month training period
… achieved a higher total FMS score (median = 16, Interquartile Range = 3) compared to uninjured runners (median = 15, Interquartile range = 3; p = 0.006). Binomial logistic regression models of external functional (FMS, Vertical Jump, Sit-and-Reach scores) factors [X² (3) = 9.764, p = 0.021] were …
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Long term mortality after lower extremity amputation in South Africa
… 152 patients; 90 (59%) males and the median age (interquartile range, IQR) was 60 (54-67) years. At 30 days, 102 patients were traced and 12 (12%) were dead. At one year, 86 (57%) were traced and 37 (43%) were dead. Conclusion: At this South African hospital, 43% of patients undergoing lower …
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Klebsiella pneumoniae bloodstream infections in hospitalised children at Red Cross War Memorial Children's Hospital : 2006 - 2011
… (ESBL) producing isolates. The median age (interquartile range, IQR) was 5.0 (2-16) months, 212 (51.7%) were male, 82 (20%) were HIV-infected, and 241 (58.8%) were moderately or severely underweight. The infection was nosocomial or healthcare-associated in 389 (95%) children and …
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The Influence of HIV-1 Subtype C LTR Genotype on Latency Potential
… two times higher than that of the BaL isolate (interquartile range: 1.38-2.14), and Tatinduced activity approximately nine times higher than that of BaL (interquartile range: 6.16-10.33). We observed consistently greater proportions of latently infected cells than actively infected cells. In …
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Feeding and swallowing in neonates with Hypoxic Ischemic Encephalopathy (HIE): a descriptive study
… with a median of 4 days (p = 0.036), and an interquartile range of 4 – 5 days (standard deviation = 3.7 days). The median number of days to full oral feeds for the sample was 5 days (p = 0.016) with an interquartile range of 4 – 6.8 days (standard deviation = 4.3 days). Participants with a …
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Assessing the role of top-down techniques for improving regional estimates of artisanal and small-scale gold mining mercury emissions
… distribution of GEM concentrations, such as the interquartile range and the 95% range, suggesting possible design guidelines for monitoring networks. The model-based analysis offers insights into improving regional estimates of ASGM emissions.
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Temporal Dynamics of Groundwater Flow Direction in a Glaciated, Headwater Catchment
… changing water-table elevation, having a maximum range of 0.12 m/m and 9.19 x 10-6 m/s, respectively. The direction of groundwater flow had an arithmetic mean deviating from surface topography by 2-10 degrees, and a total range that deviated from surface topography by as much as 51 degrees. During …
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Assessing the potential contribution of roads to variation in British bird populations
… negatively and others positively. Across the interquartile range of road exposure, the mean decrease in bird abundance (for species with significant negative associations) was -19% and the mean increase (for species with significant positive associations) was +47%. In Chapter 4, in order to …
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SLEEP PATTERNS AND WELL-BEING OF PERSONNEL IN AN OPERATIONAL USMC SQUADRON
… The median major sleep episode duration was 6.9 (interquartile range [IQR] = 1.79) hours over the duration of the study. Twenty-seven participants had major sleep episode durations shorter than seven hours and nine participants had less than six hours. At the three-month mark, four participants …
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Exercício aquático com dupla-tarefa para pacientes com doença de Parkinson avançada
… in mean and SD as well as in median and interquartile range for non-parametric variable. Data from the SFT was normalized by logarithmic transformation. Independent t test was used to compare parametric variables of the sample characterization, and Mann-Whitney U test, for non-parametric. …
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General anaesthesia for caesarean delivery for thrombocytopaenia: findings from an obstetric airway management registry
… platelet counts could be traced. The median (interquartile range) platelet count was 178 x 109 /L (93-233 x 109 /L), and > 75 x 109 /L in 41/46 (89.1%) patients. In the 5/46 patients with thrombocytopenia, 2 had hemolysis elevated liver enzymes and low platelets (HELLP) syndrome, 2 had …
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Petechiae in Children (PiC) study: evaluating potential clinical decision rules for the management of feverish children with non-blanching rashes, including the role of point of care testing for Procalcitonin & Neisseria meningitidis DNA
… in the analysis. Median age was 24 months (interquartile range 12 to 48), 1137(85·6%) underwent blood testing, and 596(44·8%) received parenteral antibiotics. There were 19 cases of MD (1·4%). All CPGs (n=8)demonstrated a sensitivity of 1·00 for the identification of MD. National Institute …
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Evaluation of a high-yield technique for pancreatic islet isolation from deceased canine donors
… isolation was completed in 6 dogs. Median (interquartile range) islet yield was 36,756 (28,527) islet equivalents (IEQ) per pancreas. A high degree of islet purity (percentage of endocrine tissue; 87.5% [10%]) and viability (87.4% [12.4%]) were achieved. The islet yield achieved using this …
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