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Nevin Manimala Statistics

Fatigue and physical activity patterns in children with Inflammatory Bowel Disease

J Pediatr Gastroenterol Nutr. 2023 Jul 26. doi: 10.1097/MPG.0000000000003905. Online ahead of print.

ABSTRACT

OBJECTIVES: Fatigue is a common symptom in children with inflammatory bowel disease (IBD). Diagnostic tests to evaluate biological causes of fatigue commonly include markers of inflammation and haemoglobin (Hb), yet functional parameters have been inadequately studied in paediatric IBD. In this study we compared fatigued and non-fatigued children with IBD from both a biological and functional point of view.

METHODS: A cross-sectional study of 104 paediatric IBD patients with mild to moderately active IBD was conducted. Fatigued children were defined as those with a Pediatric Quality of Life Inventory (PedsQL TM) Multidimensional Fatigue Scale Z-score <-2.0. Non-fatigued children had a Z-score ≥ -2.0. Disease-specific quality of life (measured with IMPACT-III score), C-reactive protein (CRP), faecal calprotectin (FC), haemoglobin Z-score (Hb Z-score) and physical activity tests including 6-minute walking distance Z-score (6MWD Z-score) and triaxial accelerometry (TA) were evaluated.

RESULTS: Fatigued children (n=24) had a significant lower IMPACT-III score than non-fatigued children (n=80). Hb Z-scores, CRP, FC and 6 MWD Z-scores were not significantly different between groups. TA was performed in 71 patients. Wear time validation requirements were met in only 31 patients. Fatigued patients spent significant shorter median time in moderate-to-vigorous activity than non-fatigued patients (18.3 versus 37.3 minutes per day, P=0.008).

CONCLUSION: Biological parameters did not discriminate fatigued from non-fatigued patients. TA possibly distinguishes fatigued from non-fatigued patients; the potential association may provide a target for interventions to combat fatigue and improve quality of life.

PMID:37494540 | DOI:10.1097/MPG.0000000000003905

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Nevin Manimala Statistics

Neonatal Catheter and Tube Placement and Radiographic Assessment Statistics in Relation to Important Anatomic Landmarks

Am J Perinatol. 2023 Jul 20. doi: 10.1055/s-0043-1771051. Online ahead of print.

ABSTRACT

OBJECTIVE: Neonatal catheters and tubes are commonly used for monitoring and support for intensive care and must be correctly positioned to avoid complications. Position assessment is routinely done by radiography. The objective of this study is to characterize neonatal catheter and tube placement in terms of the proportion of those devices that are malpositioned.

STUDY DESIGN: Using an institutional dataset of 723 chest/abdominal radiographs of neonatal intensive care unit (ICU) patients (all within 60 days of birth), we assessed the proportion of catheters that are malpositioned. Many radiographs contained multiple catheter types. Umbilical venous catheters (UVCs; 448 radiographs), umbilical arterial catheters (UACs; 259 radiographs), endotracheal tubes (ETTs; 451 radiographs), and nasogastric tubes (NGTs; 603 radiographs) were included in our analysis.

RESULTS: UVCs were malpositioned in 90% of radiographs, while UACs were malpositioned in 36%, ETTs in 30%, and NGTs in just 5%. The most common locations in which UVCs were malpositioned were in the right atrium (31%) and umbilical vein (21%), and for UACs the most common malpositioned tip location was the aortic arch (8%). For the remaining tubes, 5% of ETTs were found to be in the right main bronchus and 4% of NGTs were found in the esophagus.

CONCLUSION: A substantial proportion of catheters and tubes are malpositioned, suggesting that optimizing methods of catheter placement and assessment ought to be areas of focus for future work.

KEY POINTS: · Neonatal catheters are frequently malpositioned.. · Most umbilical venous catheters need readjustment.. · X-ray and ultrasound are important for assessment.. · Catheter tips should be assessed in all X-rays..

PMID:37494483 | DOI:10.1055/s-0043-1771051

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Nevin Manimala Statistics

Contemporary Obstetric and Neonatal Outcomes in Sickle Cell Disease: A Retrospective Cohort Study

Am J Perinatol. 2023 Jul 20. doi: 10.1055/s-0043-1771050. Online ahead of print.

ABSTRACT

OBJECTIVE: Sickle cell disease is associated with adverse perinatal outcomes. Aspects of sickle cell disease in pregnancy, such as health care utilization and neonatal abstinence syndrome, are understudied. We aimed to describe contemporary sickle cell disease outcomes in a U.S. hospital system to improve perinatal counseling.

STUDY DESIGN: We conducted a retrospective cohort study of patients with sickle cell disease who delivered at >20 weeks’ gestation at two sites within the University of Pennsylvania Health System from May 1, 2017 to August 30, 2020. Descriptive statistics were utilized.

RESULTS: Over the study period, 48 patients with sickle cell disease had 52 deliveries of 53 neonates. Sickle cell disease-related morbidity was prevalent prior to pregnancy; 27% had a history of avascular necrosis, and 58% had experienced acute chest syndrome. In the year prior to pregnancy, 52% used daily opioids. During pregnancy, more than half of patients were admitted at least once for sickle cell disease-related complications, spending a median 3 days admitted interquartile range (0-23); >10% spent >70 days of pregnancy admitted. New daily opioids were prescribed during pregnancy for 10% to manage pain crises. Acute chest syndrome was experienced by 23% of patients during pregnancy, and 8% required placement of long-term intravenous access. Preterm delivery <37 weeks occurred in 48%. The primary cesarean rate in nulliparas was 43%. Additionally, 50% experienced a hypertensive disorder of pregnancy, 35% underwent transfusion during delivery admission, and 10% had a perinatal venous thromboembolism. Finally, 53% of neonates were admitted to the intensive care unit. Low birth weight was noted in 34%, severe respiratory distress in 15% of infants, and neonatal abstinence syndrome in 21%.

CONCLUSION: Sickle cell disease remains associated with significant perinatal morbidity and need for hospitalization. These data provide contemporary outcomes to target improvements in the care of patients with sickle cell disease.

KEY POINTS: · SCD was associated with significant perinatal morbidity and healthcare utilization.. · Most patients with SCD required hospitalization during pregnancy.. · Neonates of patients with SCD experienced preterm birth, NICU admission, and neonatal abstinence syndrome..

PMID:37494482 | DOI:10.1055/s-0043-1771050

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Nevin Manimala Statistics

A green-and-white integrative analytical strategy combining univariate and chemometric techniques for quantifying recently approved multi-drug eye solution and potentially cancer-causing impurities: Application to the aqueous humour

J AOAC Int. 2023 Jul 26:qsad087. doi: 10.1093/jaoacint/qsad087. Online ahead of print.

ABSTRACT

BACKGROUND: Drug impurities are now seen as a major threat to the production of pharmaceuticals around the world and a major part of the global contamination problem, especially when it comes to carcinogenic impurities.

OBJECTIVE: we present the first spectrophotometric strategy based on a combination of univariate and multivariate methods as impurity profiling methods for the estimation of lignocaine (LIG) and fluorescein (FLS) with their carcinogenic impurities: 2,6-xylidine (XYL) and benzene-1,3-diol (BZD).

METHODS: The data processing strategy depends on overcoming unresolved bands by employing five affordable, accurate, selective, and sensitive methods. The methods applied were a direct UV univariate spectrophotometric analysis (D0) and four multivariate chemometric methods including, classical least squares (CLS), Principal component regression (PCR), Partial least squares (PLS), and genetic algorithm (GA-PLS). FLS analysis (1-16 μg/mL) was performed using the D0 method at 478 nm; then, the application of the ratio subtraction method (RSM) allowed the removal of interference caused by the FLS spectrum. From the resulting ratio spectra, LIG, XYL, and BZD can be efficiently determined by chemometrics. The calibration set was carefully selected at 5 concentration levels utilizing a partial factorial training design, resulting in 25 mixtures with central levels of 160, 40, and 3 μg/mL for LIG, XYL, and BZD, respectively. Another 13 samples were applied to validate the predictive ability.

RESULTS: The statistical parameters demonstrated exceptional recoveries and smaller prediction errors, confirming the experimental model’s predictive power.

CONCLUSION: The proposed approach was effectively tested using newly FDA-approved LIG and FLS pharmaceutical preparation and aqueous humour. Additionally, it was effectively assessed for whiteness, greenness, and sustainability using five assessment tools.

HIGHLIGHTS: With its remarkable analytical performance, sustainability, affordability, simplicity, and cost-efficiency, the proposed strategy is an indispensable tool for quality control and in-situ analysis in little-equipped labs, increasing the proposed approach’s surveillance ability.

PMID:37494481 | DOI:10.1093/jaoacint/qsad087

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Nevin Manimala Statistics

Construct Validity of the Sensory Profile Interoception

Am J Occup Ther. 2023 Jul 1;77(Supplement_2):7711500001p1. doi: 10.5014/ajot.2023.77S2-RP1.

ABSTRACT

Date Presented 04/20/2023 The concurrent and construct validity of the Sensory Profile Interoception (SPI) was supported by statistically significant relationships with the Adolescent/Adult Sensory Profile and other measures associated with interoception. With the more precise information the SPI provides, professionals can design tailored interventions to support everyday life goals, and researchers can study interoception in authentic activities. Primary Author and Speaker: Winnie Dunn Additional Authors and Speakers: Catana Brown.

PMID:37494480 | DOI:10.5014/ajot.2023.77S2-RP1

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Nevin Manimala Statistics

The chronicles of statistical methods employed in occupational hygiene

Ann Work Expo Health. 2023 Jul 26:wxad042. doi: 10.1093/annweh/wxad042. Online ahead of print.

NO ABSTRACT

PMID:37494458 | DOI:10.1093/annweh/wxad042

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Nevin Manimala Statistics

Animal naming test is a simple and valid tool for detecting covert hepatic encephalopathy and predicting outcomes in Chinese-speaking regions: a preliminary study

Ann Med. 2023 Dec;55(1):2236013. doi: 10.1080/07853890.2023.2236013.

ABSTRACT

BACKGROUND AND AIMS: Hepatic encephalopathy (HE) implies high morbidity and mortality. The assessment of covert HE (CHE) [i.e. minimal HE (MHE) plus grade 1 HE] is often neglected in Taiwan. Therefore, the aim was to investigate the potential of the animal naming test (ANT1 and simplified ANT1 (S-ANT1)) for assessing CHE in Chinese-speaking regions, specifically Taiwan.

METHODS: A prospective cohort study was conducted, comprising 65 cirrhotic patients and 29 healthy controls (relatives of the patients). Patients were followed up every three months and censored after two years or until death. Hospitalization for overt HE (OHE) and mortality were considered. All subjects underwent ANT1, psychometric HE score (PHES), and mini-mental state examination (MMSE). The patients underwent an electroencephalogram (EEG) to detect slowing indicative of MHE. Cut-off values for ANT1 and S-ANT1 were assessed by ROC analysis and Youden’s index, considering CHE as a reference. The prognostic values for OHE and OHE-free survival were assessed.

RESULTS: Preliminary analysis confirmed that PHES ≤-4 is a good discriminant point for abnormal results. CHE was found in 29 patients: 9 had MHE (PHES ≤ -4 or altered EEG) and 20 had grade 1 HE. ANT1 and S-ANT1 were found to have diagnostic values for CHE: AUC = 0.807, 0.786; cut off: 18 and 19, respectively. ANT1 and S-ANT1 were found to have prognostic value for OHE, number of hospitalization episodes for OHE, and OHE recurrence-free survival.

CONCLUSIONS: ANT1 shows promise as a tool for CHE detection, quantification, and follow-up in Taiwan and other Chinese-speaking regions.Key messagesThe animal naming test (ANT1) is a simple and valid semantic fluency test that can be easily performed in outpatient or bedside settings in one minute and can also be used as a tool for covert hepatic encephalopathy (CHE) detection, quantification, and follow-up in Taiwan, other Chinese-speaking regions, and many other countries.The diagnostic value of ANT1 and S-ANT1 for CHE were found to be significant, with area under the receiver operating characteristic curve (AUROC) values of 0.807 and 0.786 respectively, and cut-off scores of 18 and 19.ANT1 and S-ANT1 have prognostic value for the first breakthrough of overt hepatic encephalopathy (OHE), number of hospitalization episodes for OHE, and OHE recurrence-free survival, independent of the MELD score.

PMID:37494454 | DOI:10.1080/07853890.2023.2236013

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Nevin Manimala Statistics

Determinants of initiation, continuation and cessation of smokeless tobacco among pregnant and lactating women: A qualitative study from low-income communities in urban India

Health Policy Plan. 2023 Jul 26:czad056. doi: 10.1093/heapol/czad056. Online ahead of print.

ABSTRACT

Smokeless tobacco (SLT) consumption increases risk of cardiovascular diseases, different cancers and leads to adverse reproductive health outcomes among women and new-borns. This study examines the factors associated with initiation, continuation and cessation of SLT use among women in the reproductive age so as to formulate and include prevention and cessation interventions from its inception. The study was conducted in the urban low-income communities in India. Using snowball and purposive sampling techniques, in-depth interviews were conducted with 20 pregnant and 22 lactating women who currently used SLT products. Data was analysed using thematic analysis with the help of QSR NVivo software. Findings revealed that factors such as people influencing usage, change with different life stages including pre-marital and post-marital periods. Perceived health benefits, altered taste preferences during pregnancy and social influences were also studied. Women were found to be more aware of the harmful effects of tobacco during pregnancy than during breastfeeding. Social stigma around women consuming tobacco acted as a major driving factor for cessation. Most of the participants were willing to quit, but were not aware of any technique or program for cessation. The findings of the study highlight the need to develop behavioural change intervention tools which are culturally and locally appropriate and have a gender sensitive approach. Different socio-cultural factors associated with initiation/cessation at different life stages should also be taken into consideration while developing these tools.

PMID:37494416 | DOI:10.1093/heapol/czad056

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Nevin Manimala Statistics

Genetics of cannabis use in opioid use disorder: A genome-wide association and polygenic risk score study

PLoS One. 2023 Jul 26;18(7):e0289059. doi: 10.1371/journal.pone.0289059. eCollection 2023.

ABSTRACT

BACKGROUND: Individuals with an Opioid Use Disorder (OUD) have increased rates of cannabis use in comparison to the general population. Research on the short- and long-term impacts of cannabis use in OUD patients has been inconclusive. A genetic component may contribute to cannabis cravings.

AIMS: Identify genetic variants associated with cannabis use through Genome-wide Association Study (GWAS) methods and investigate a Polygenic Risk Score (PRS). In addition, we aim to identify any sex differences in effect size for genetic variants reaching or nearing genome-wide significance in the GWAS.

METHODS: The study outcomes of interest were: regular cannabis use (yes/no) (n = 2616), heaviness of cannabis use (n = 1293) and cannabis cravings (n = 836). Logistic and linear regressions were preformed, respectively, to test the association between genetic variants and each outcome, regular cannabis use and heaviness of cannabis use. GWAS summary statistics from a recent large meta-GWAS investigating cannabis use disorder were used to conduct PRS’s. Findings are limited to a European ancestry sample.

RESULTS: No genome-wide significant associations were found. Rs1813412 (chromosome 17) for regular cannabis use and rs62378502 (chromosome 5) for heaviness of cannabis use were approaching genome-wide significance. Both these SNPs were nominally significant (p<0.05) within males and females, however sex did not modify the association. The PRS identified statistically significant association with cannabis cravings. The variance explained by all PRSs were less than 1.02×10-2.

CONCLUSION: This study provides promising results in understanding the genetic contribution to cannabis use in individuals living with OUD.

PMID:37494403 | DOI:10.1371/journal.pone.0289059

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Nevin Manimala Statistics

The impact of lipid degradation on fingerprint quality on fired firearm cartridges

J Forensic Sci. 2023 Jul 26. doi: 10.1111/1556-4029.15342. Online ahead of print.

ABSTRACT

The recovery of identifiable fingerprints from fired cartridge cases is challenging. Therefore, the characterization of chemical modifications and their effects on fingerprint integrity post-firing is essential. In this study, the primary fingerprint lipids, including myristic acid, pentadecanoic acid, palmitoleic acid, palmitic acid, stearic acid, squalene, and cholesterol in fired and unfired cartridges, were extracted with acetonitrile, followed by derivatization using N,O-Bis(trimethylsilyl)trifluoroacetamide with 1% trimethylchlorosilane (BSTFA/1%TMCS). Squalane was used as the internal standard, and all quantifications were performed using gas chromatography coupled with mass spectrometry using a triple-quadrupole mass filter. All lipids identified in the unfired cartridges were also detected in the fired cartridges, and statistical analysis using Student’s t-test and F tests was performed with a 95% confidence level. The concentration of lipids in the unfired cartridges was found to be similar to that detected in the fired cartridges, except for squalene, the recovery of which was 28% lower in the fired cartridges.

PMID:37493034 | DOI:10.1111/1556-4029.15342