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Nevin Manimala Statistics

Predictors and differences in fertility level among Nigerian women of reproductive age: a function of subgroup social norms fertility behaviour

Hum Fertil (Camb). 2022 Nov 12:1-15. doi: 10.1080/14647273.2022.2137859. Online ahead of print.

ABSTRACT

Fertility rates in Nigeria are declining at such a modest rate, that if more proactive measures are not employed to reduce fertility, the nation may double its population before long. We empirically examined fertility behaviour as derivatives of specific subgroup social norms, and the variations in the factors responsible for different fertility behaviours, using the 2018 Nigeria Demographic and Health Survey. Descriptive bivariate, and multinomial logistic regression analyses were used to predict the contribution of demographic and sociocultural factors contributing to the fertility level, and findings were reported as odds ratios. Results revealed that age, religion and level of education are the most significant predictors of fertility level, with remarkable differences in birth rate across subgroups, whereas North-West Nigeria had the highest fertility level. Furthermore, marriage had a significantly negative effect on high fertility among North-Western women, whereas higher education significantly increased high fertility among North-Eastern women. In conclusion, subgroup social norms fertility behaviour is responsible for the persistent fertility differential outcome in Nigeria. Thus, the paper strongly advocates the need to intensify community-led, norm-based solution and not a universal approach in addressing fertility control in Nigeria.

PMID:36369930 | DOI:10.1080/14647273.2022.2137859

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Nevin Manimala Statistics

Urban-rural disparities in geographic accessibility to care for people living with HIV

AIDS Care. 2022 Nov 12:1-8. doi: 10.1080/09540121.2022.2141186. Online ahead of print.

ABSTRACT

In the United States, people living with HIV (PLWH) in rural areas fare worse along the HIV care continuum than their urban counterparts; this may be due in part to limited geographic access to care. We estimated drive time to care for PLWH, focusing on urban-rural differences. Adult Medicaid enrollees living with HIV and their usual care clinicians were identified using administrative claims data from 14 states (Medicaid Analytic eXtract, 2009-2012). We used geographic network analysis to calculate one-way drive time from the enrollee’s ZIP code tabulation area centroid to their clinician’s practice address, then examined urban-rural differences using bivariate statistics. Additional analyses included altering the definition of rurality; examining subsamples based on the state of residence, services received, and clinician specialty; and adjusting for individual and county characteristics. Across n = 49,596 PLWH, median drive time to care was 12.8 min (interquartile range 26.3). Median drive time for rural enrollees (43.6 (82.0)) was nearly four times longer than for urban enrollees (11.9 (20.6) minutes, p < 0.0001), and drive times exceeded one hour for 38% of rural enrollees (versus 12% of urban, p < 0.0001). Urban-rural disparities remained in all additional analyses. Sustained efforts to circumvent limited geographic access to care are critical for rural areas.

PMID:36369925 | DOI:10.1080/09540121.2022.2141186

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Nevin Manimala Statistics

Selection Bias Due to Delayed Comprehensive Genomic Profiling in Japan

Cancer Sci. 2022 Nov 12. doi: 10.1111/cas.15651. Online ahead of print.

ABSTRACT

Patients with advanced cancer undergo comprehensive genomic profiling only after treatment options have been exhausted in Japan. Patients with a very poor prognosis were not able to undergo profiling tests, resulting in a selection bias called length bias, which makes accurate survival analysis impossible. The actual impact of length bias on the overall survival of patients who have undergone profiling tests is unclear, yet appropriate methods for adjusting for length bias have not been developed. To assess the length bias in overall survival, we established a simulation-based model for length bias adjustment. This study utilized clinicogenomic data of 8813 patients with advanced cancer who underwent profiling tests at hospitals throughout Japan between June 2019 and April 2022. Length bias was estimated by conditional Kendall’s τ statistics and was significantly positive for 13 of the 15 cancer subtypes, suggesting a worse prognosis for patients who underwent profiling tests in early timing. The median overall survival time in colorectal, breast, and pancreatic cancer from the initial survival-prolonging chemotherapy with adjustment for length bias was 937 (886-991), 1225 (1152-1368), and 585 (553-617) days, respectively (median; 95% credible interval). Adjusting for length bias made it possible to analyze the prognostic relevance of oncogenic mutations and treatments. In total, 12 tumor-specific oncogenic mutations correlating with poor survival were detected after adjustment. There was no difference in survival between FOLFIRINOX or Gemcitabine with nab-paclitaxel-treated groups as first-line chemotherapy for pancreatic cancer. Adjusting for length bias is an essential part of utilizing real-world clinicogenomic data.

PMID:36369895 | DOI:10.1111/cas.15651

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Nevin Manimala Statistics

STOX1 promotor region -922 T > C polymorphism is associated with Early-Onset preeclampsia

J Obstet Gynaecol. 2022 Nov 11:1-7. doi: 10.1080/01443615.2022.2141612. Online ahead of print.

ABSTRACT

Preeclampsia (PE), affecting 5-8% of pregnancies, is a common pregnancy disease that has harmful effects on mother and foetus. It has been found that the STOX1 (Storkhead Box 1), which is a transcription factor, carries variants associated with PE. Previous studies showed that, there was a strong relationship between PE and STOX1 variants. Therefore, we hypothesised that variants in the promoter region of the gene may be related to the onset of PE. The aim of this study is to investigate the contribution of STOX1 gene promoter region variants to PE. The blood samples taken from 118 PE patients and 96 healthy pregnant women were analysed by Sanger sequencing method. Sequence analysis results showed that, there is a-922 T > C polymorphism (rs884181) in the promoter region of the STOX1 gene. This polymorphism was found to be statistically significant in individuals with early onset PE (p = 0.02) and in PE (p = 0.014) compared to the control group.IMPACT STATEMENTWhat is already known on this subject? As a result of whole-exon studies on the STOX1 gene, polymorphisms were found to disrupt the structure/expression/function of the gene and strengthen its relationship with PE and HELLP syndrome. A previous study by our team found an association between Y153H, the most common polymorphism of STOX1, and early onset PE.What do the results of this study add? In our study, it was aimed to investigate the effect of genetic modifications in STOX1 gene promoter region on PE through the maternal genotype. Because any change in the promoter region affects the expression level of the gene. Also, for the first time, sequence analysis of the promoter region of STOX1 is investigated in PE. The variations in STOX1 appear to be important in PE especially in Early Onset PE.What are the implications of these findings for clinical practice and/or further research? Although PE is a disease that occurs with pregnancy and shows its effects most during this period, women and children with a history of PE are more prone to various disorders, especially cardiovascular diseases in the following years. Therefore, understanding the pathogenesis of the disease is important for both prevention and treatment process. Variations on STOX1 appear to be important in terms of disease risk.

PMID:36369889 | DOI:10.1080/01443615.2022.2141612

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Nevin Manimala Statistics

Changes in survival of patients with non-small cell lung cancer in Japan: an interrupted time series study

Cancer Sci. 2022 Nov 11. doi: 10.1111/cas.15646. Online ahead of print.

ABSTRACT

The epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) gefitinib and erlotinib were approved for metastatic or relapsed non-small cell lung cancer (NSCLC) in Japan in 2002 and 2007, respectively. EGFR mutation testing was also approved in 2007. Although clinical trials showed efficacy in NSCLC patients harboring activating EGFR mutations, these effects have rarely been reported in real-world practice. We evaluated changes in survival in NSCLC patients following introduction of these agents and EGFR mutation testing by extracting patients diagnosed with NSCLC from 1993 through 2011 from six prefectural population-based cancer registries in Japan. Relative survival (RS) was calculated by sex, histological subtype, and cancer stage. We conducted interrupted time series analysis to assess survival changes following introduction of EGFR-TKIs and EGFR mutation testing. 120,068 patients with NSCLC were analyzed. One- and 3-year RS gradually increased in overall NSCLC for men and women. For adenocarcinoma, among men, slopes of 1- and 3-year RS increased steeply in patients diagnosed from 2007 through 2011; among women, significant level increases were seen in 1-year RS in patients diagnosed in 2002 (4.55% [95% confidence interval: 1.76-7.33]) and 2007 (3.40% [95% CI: 1.27-5.52]). These significant level increases were particularly obvious in women with adenocarcinoma at an advanced stage. Our results suggest that recent improvements in survival in men and women with adenocarcinoma are due at least partly to introduction of EGFR-TKIs into real-world practice, and to prescription based on appropriate patient selection following introduction of EGFR mutation testing into real-world practice in Japan.

PMID:36369880 | DOI:10.1111/cas.15646

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Nevin Manimala Statistics

Evaluation of Levocetirizine in Beagle Dog and Cynomolgus Monkey Telemetry Assays: Defining the No QTc Effect Profile by Timepoint and Concentration-QTc Analysis

Clin Transl Sci. 2022 Nov 11. doi: 10.1111/cts.13454. Online ahead of print.

ABSTRACT

In prior clinical studies, levocetirizine (LEVO) has demonstrated no effect on ventricular repolarization (QTc intervals), therefore it is a relevant negative control to assess in nonclinical assays to define low proarrhythmic risk. LEVO was tested in beagle dog and cynomolgus monkey (NHP) telemetry models to understand the nonclinical-clinical translation of this negative control. One oral dose of vehicle, LEVO (10 mg/kg/species) or moxifloxacin (MOXI: 30 mg/kg/dog; 80 mg/kg/NHP) was administered to instrumented animals (N=8/species) using a cross-over dosing design; MOXI was the in-study positive control. Corrected QT values (QTcI) were calculated using an individual animal correction factor. Blood samples were taken for drug exposure during telemetry and for pharmacokinetic (PK) analysis (same animals; different day) for exposure-response (C-QTc) modeling. Statistical analysis of QTc-by-timepoint data showed that LEVO treatment was consistent with vehicle, thus no effect on ventricular repolarization was observed over 24 hr in both species. PK analysis indicated that LEVO-Cmax levels in dog (range: 12300-20100 ng/ml) and NHP (range: 4090-12700 ng/ml) were ≥ 4-fold higher than supra-therapeutic drug levels in clinical QTc studies. Slope analysis values in dog (0.00019 ms/ng/mL) and NHP (0.00016 ms/ng/mL) were similar to the human C-QTc relationship and indicated no relationship between QTc intervals and plasma levels of LEVO. MOXI treatment caused QTc interval prolongation (dog: 18 ms; NHP: 29 ms). The characterization of LEVO in these non-rodent telemetry studies further demonstrates the value and impact of the in vivo QTc assay to define a “no QTc effect” profile and support clinical safety assessment.

PMID:36369797 | DOI:10.1111/cts.13454

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Nevin Manimala Statistics

Progression of endolymphatic hydrops and vertigo during treatment in Meniere’s disease

Acta Otolaryngol. 2022 Nov 11:1-5. doi: 10.1080/00016489.2022.2138968. Online ahead of print.

ABSTRACT

BACKGROUND: Patients with Meniere’s disease (MD) receive treatment to reduce vertigo.

PURPOSE: To explore the fluctuation of vertigo symptoms and the changes in endolymphatic hydrops (EHs) in MD patients during long-term regular medication.

MATERIALS AND METHODS: We enrolled MD patients who had received two magnetic resonance imaging with intravenous contrast agents.

RESULTS: Of the 42 patients in the study, 18(42.9%) had progressive EHs and 3(7.1%) had remission. The change value of the signal intensity ratio (SIR; cochlear perilymph/cerebellum) on the affected side (1.2) was larger than that on the healthy side (0.9), but there was no statistical difference. Among the 30 patients followed up, two patients had complete control of vertigo, two patients had substantial control, and three patients had worse control. The other 23 patients had insignificant control of vertigo symptoms before and after treatment. The correlation between the progression of cochlear and vestibular hydrops and the improvement of vertigo symptoms in MD patients was not significant.

CONCLUSIONS AND SIGNIFICANCE: In treated patients with MD, EHs may progress or relieve over the long course of the disease. But there was no correlation between the development of EHs and changes in vertigo symptoms.

PMID:36369788 | DOI:10.1080/00016489.2022.2138968

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Nevin Manimala Statistics

Genicular Nerve Block for Pain Management in Patients With Knee Osteoarthritis: A Randomized Placebo-Controlled Trial

Arthritis Rheumatol. 2022 Nov 11. doi: 10.1002/art.42384. Online ahead of print.

ABSTRACT

OBJECTIVE: This study was undertaken to determine the efficacy of ultrasound-guided genicular nerve block (GNB) for the management of knee pain in patients with knee osteoarthritis.

METHODS: We performed a 12-week parallel-group, placebo-controlled randomized trial of GNB. Within 2 weeks of randomization, patients with knee osteoarthritis in the active arm received 3 injections of 5.7 mg celestone chronodose (1 ml) and 0.5% bupivacaine (3 ml) to the inferomedial, superomedial, and superolateral genicular nerves; patients with knee osteoarthritis in the placebo arm received injections of normal saline. At baseline and at weeks 2, 4, 8, and 12, patients recorded their pain and disability on a 100-mm visual analog scale (VAS) (the primary outcome measure), the Western Ontario and McMasters Universities Osteoarthritis Index (WOMAC), and the Intermittent and Constant Osteoarthritis Pain scale. Statistical significance was set at a 2-sided Type I error of α = 0.0125 for comparisons at each of the 4 time points. We used a global perceived effect scale to measure patient satisfaction.

RESULTS: The 59 patients (36 female, 23 male) who completed the trial had a mean ± SD age of 68.2 ± 8.6 years. Patients in the active group reported improvements in pain scores at 2, 4, 8, and 12 weeks with a diminution of the effect over time. VAS scores at baseline and at weeks 2, 4, 8, and 12 in the active group (n = 31) versus placebo group (n = 28) were 6.2 versus 5.3 (P = 0.294), 2.7 versus 4.7 (P < 0.001), 3.2 versus 5.1 (P < 0.001), 3.9 versus 4.9 (P < 0.001), and 4.6 versus 5.1 (P = 0.055), respectively. Total WOMAC scores at baseline and at weeks 2, 4, 6, 8, and 12 in the active group versus the placebo group were 54.5 versus 48.1 (P = 0.177), 32.9 versus 44.4 (P < 0.001), 33.7 versus 45.8 (P < 0.001), 39.2 versus 44.8 (P = 0.001), and 42.65 versus 45.1 (P = 0.012), respectively.

CONCLUSION: GNB offers short-term pain relief for knee osteoarthritis.

PMID:36369781 | DOI:10.1002/art.42384

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Nevin Manimala Statistics

Management of post-stroke fatigue: an Australian health professional survey

Disabil Rehabil. 2022 Nov 11:1-7. doi: 10.1080/09638288.2022.2143578. Online ahead of print.

ABSTRACT

PURPOSE: Evidence for post-stroke fatigue management is limited. We aimed to explore how Australian health professionals assess and assist fatigue management. Our objectives were to identify fatigue assessment tools and interventions used, explore clinician’s confidence managing fatigue and explore whether management of post-stroke fatigue differs from management of fatigue related to other conditions.

MATERIALS AND METHODS: An online cross-sectional survey was completed by Australian health professionals (n = 60) providing services to people with fatigue. Analysis of open-ended questions identified common interventions and descriptive statistics were calculated for closed and dichotomized questions.

RESULTS: Routine use of formal fatigue assessment tools was low (17%, n = 10). Most respondents reporting use of the Fatigue Impact Scale, Fatigue Assessment Scale and Fatigue Severity Scale. To address fatigue, respondents reported providing energy optimization strategies, education, and exercise interventions in clinical practice. Less frequently reported interventions were strategies to adapt tasks, sleep hygiene, psychology, nutrition, and pharmacology interventions. Respondents were “moderately” confident managing post-stroke fatigue. Respondents did not report differences between how they manage post-stroke fatigue and fatigue present in other conditions.

CONCLUSIONS: Few Australian health professionals formally assess post-stroke fatigue. Management is multidisciplinary and based on evidence from fatigue management in other conditions.Implications for rehabilitationMost health professionals are not routinely using formal assessment tools for fatigue, possibly due to a lack of consensus on best practice in research.Common strategies recommended by health professionals include energy optimisation strategies, education and exercise.Comprehensive guidelines for post-stroke fatigue management are yet to be established.Health professionals should assess post-stroke fatigue using a validated tool to ensure an individualised approach to management based on the current available clinical guidelines.

PMID:36369739 | DOI:10.1080/09638288.2022.2143578

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Nevin Manimala Statistics

Evaluation of a comprehensive maternal newborn health intervention in rural Tanzania: single-arm pre-post coverage survey results

Glob Health Action. 2022 Dec 31;15(1):2137281. doi: 10.1080/16549716.2022.2137281.

ABSTRACT

BACKGROUND: In Tanzania, maternal and newborn deaths can be prevented via quality facility-based antenatal care (ANC), delivery, and postnatal care (PNC). Scalable, integrated, and comprehensive interventions addressing demand and service-side care-seeking barriers are needed.

OBJECTIVE: Assess coverage survey indicators before and after a comprehensive maternal newborn health (MNH) intervention in Misungwi District, Tanzania.

METHODS: A prospective, single-arm, pre- (2016) and post-(2019) coverage survey (ClinicalTrials.gov #NCT02506413) was used to assess key maternal and newborn health (MNH) outcomes. The Mama na Mtoto intervention included district activities (planning, leadership training, supportive supervision), health facility activities (training, equipment, infrastructure upgrades), and plus community health worker mobilization. Implementation change strategies, a process model, and a motivational framework incorporated best practices from a similar Ugandan intervention. Cluster sampling randomized hamlets then used ‘wedge sampling’ protocol as an alternative to full household enumeration. Key outcomes included: four or more ANC visits (ANC4+); skilled birth attendant (SBA); PNC for mother within 48 hours (PNC-woman); health facility delivery (HFD); and PNC for newborn within 48 hours (PNC-baby). Trained interviewers administered the ‘Real Accountability: Data Analysis for Results Coverage Survey to women 15-49 years old. Descriptive statistics incorporated design effect; the Lives Saved Tool estimated deaths averted based on ANC4+/HFD.

RESULTS: Between baseline (n = 2,431) and endline (n = 2,070), surveys revealed significant absolute percentage increases for ANC4+ (+11.6, 95% CI [5.4, 17.7], p < 0.001), SBA (+16.6, 95% CI [11.1, 22.0], p < 0.001), PNC-woman (+9.2, 95% CI [3.2, 15.2], p = 0.002), and HFD (+17.2%, 95% CI [11.3, 23.1], p < 0.001). A PNC-baby increase (+6.1%, 95% CI [-0.5, 12.8], p = 0.07) was not statistically significant. An estimated 121 neonatal and 20 maternal lives were saved between 2016 and 2019.

CONCLUSIONS: Full-district scale-up of a comprehensive MNH package embedded government health system was successfully implemented over a short time and associated with significant maternal care-seeking improvements and potential for lives saved.

PMID:36369729 | DOI:10.1080/16549716.2022.2137281