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Nevin Manimala Statistics

A Data-Driven Analysis Method for the Trajectory of Power Carbon Emission in the Urban Area

Big Data. 2023 Jun 16. doi: 10.1089/big.2022.0299. Online ahead of print.

ABSTRACT

“Industry 4.0” aims to build a highly versatile, individualized digital production model for goods and services. The carbon emission (CE) issue needs to be addressed by changing from centralized control to decentralized and enhanced control. Based on a solid CE monitoring, reporting, and verification system, it is necessary to study future power system CE dynamics simulation technology. In this article, a data-driven approach is proposed to analyzing the trajectory of urban electricity CEs based on empirical mode decomposition, which suggests combining macro-energy thinking and big data thinking by removing the barriers among power systems and related technological, economic, and environmental domains. Based on multisource heterogeneous mass data acquisition, effective secondary data can be extracted through the integration of statistical analysis, causal analysis, and behavior analysis, which can help construct a simulation environment supporting the dynamic interaction among mathematical models, multi-agents, and human participants.

PMID:37327377 | DOI:10.1089/big.2022.0299

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Nevin Manimala Statistics

Maternal and perinatal outcomes in women conceiving after bariatric surgery: A cohort study

Medicine (Baltimore). 2023 Jun 16;102(24):e33913. doi: 10.1097/MD.0000000000033913.

ABSTRACT

Obesity in women, a global issue, is being widely managed with bariatric surgery worldwide. According to recommended guidelines, pregnancy should be avoided for 12 to 24 months following surgery due to various risks. We assessed if surgery-to-conception time has a relation with pregnancy outcomes taking into account gestational weight gain. A cohort study between 2015 and 2019 followed-up pregnancies after various types of bariatric surgeries performed (e.g. Roux-en-Y gastric bypass, sleeve gastrectomy, gastric banding, gastric bypass with Roux-en-Y gastroenterostomy) in Tawam Hospital, Al Ain, United Arab Emirates. There were 5 surgery-to-conception groups: <6 months, 6 to 12 months, 13 to 18 months, 19 to 24 months, and >24 months. There were 3 gestational weight gain groups: inadequate, adequate, or excessive (based on the National Academy of Medicine classification). Maternal and neonatal outcomes were compared using analysis of variance and chi-square tests. There were 158 pregnancies. Booking maternal body mass index and weight were higher among mothers who conceived <6 months following surgery (P < .001). Gestational weight gain was not related to the type of bariatric surgery (P = .24), but it was far more often inadequate in mothers who conceived <12 months following surgery (P = .002). Maternal (including pregnancy-induced hypertension and gestational diabetes mellitus) and neonatal outcomes were not statistically significantly associated with surgery-to-conception duration. However, birth weight was lower when gestational weight gain was inadequate (P = .03). There is a negative relationship between shorter bariatric surgery-to-conception interval and gestational weight gain, a feature related to neonatal birth weight. Conception should be delayed to improve pregnancy outcomes following bariatric surgery.

PMID:37327305 | DOI:10.1097/MD.0000000000033913

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Nevin Manimala Statistics

Quantitative analysis with multiphase contrast-enhanced computed tomography to evaluate residual tumor activity of hepatocellular carcinoma after DEB-TACE

Medicine (Baltimore). 2023 Jun 16;102(24):e34054. doi: 10.1097/MD.0000000000034054.

ABSTRACT

Most hepatocellular carcinomas (HCC) treated by transcatheter arterial chemoembolization with drug-eluting beads (DEB-TACE) are characterized by coagulation necrosis; therefore, it is often difficult to distinguish enhancement in the arterial phase that would lead to false negative evaluation. This study aimed to evaluate the specificity and sensitivity of the difference value of multiphase contrast-enhanced computed tomography (CECT) in predicting residual tumor activity in HCC lesions after DEB-TACE. This retrospective diagnostic study analyzed CECT images of 73 HCC lesions in 57 patients 20 to 40 days (average 28 days) after DEB-TACE treatment at our Hospital from January to December 2019. Postoperative pathology or digital subtraction angiography images were used as references. Residual tumor activity after the first intervention was determined based on the presence of tumor staining in digital subtraction angiography or the postoperative pathological discovery of HCC tumor cells. A significant difference was observed between the active and inactive residual groups in ∆ HU difference between CT values of arterial phase and non-contrast scans (AN, P = .000), difference between CT values of venous phase and non-contrast scans (VN, P = .000), difference between CT values of delay phase and non-contrast scans (DN, P = .000), (difference between CT values of venous and arterial phase scans, P = .001), and (difference between CT values of delay and arterial phase scans, P = .005). No statistically significant difference was observed between the delayed and venous phases (difference between CT values of delay and venous phase scans, P = .361). The area under the curve (AUC) of the ROC curve showed that the diagnostic efficacies in difference in CT value of AN (AUC = 0.976), VN (AUC = 0.927), and DN (AUC = 0.924) were higher, and their cutoff values were 4.86, 12.065, 20.19 HU with their sensitivities of 93.3%, 84.4%, 77.8% and specificities of 100%, 96.4%, and 100%, respectively. difference in CT value values of AN, VN, DN, difference between CT values of venous and arterial phase scans and difference between CT values of delay and arterial phase scans can sensitively detect residual tumor activity 20-40 days after DEB-TACE. Thus, more sensitive active residual foci were detected using all 3 enhanced phases rather than only the arterial phase. Quantitative analysis of multiphase CECT can detect residual tumor activity in an early and noninvasive manner, which can provide time for patients to receive early follow-up treatment.

PMID:37327303 | DOI:10.1097/MD.0000000000034054

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Nevin Manimala Statistics

Effect of fetal lung maturation on the efficacy of acetaminophen for premature infants with patent ductus arteriosus

Medicine (Baltimore). 2023 Jun 16;102(24):e34011. doi: 10.1097/MD.0000000000034011.

ABSTRACT

The objective of this study was to evaluate the effect of maturing fetal lung on clinical efficacy of acetaminophen in the treatment of premature infants with patent ductus arteriosus (PDA). A total of 441 premature infants admitted to our hospital from May 2020 to May 2021 were recruited, including 152 premature infants receiving fetal lung maturation (13 cases of PDA closure with drug use and 2 cases failed) and 289 cases without maturing fetal lung (17 cases of PDA closure and 8 cases failed). Finally, a total of 30 cases were enrolled in this clinical trial. All infants were divided into groups A and B according to whether fetal lung maturation was adopted before delivery. In group A, 13 infants received fetal lung maturation, and 17 in group B did not undergo fetal lung maturation. Infants in both groups were orally given with acetaminophen. After 3-day treatment, the second course of treatment was given immediately if PDA was not closed. The PDA closure rate and patency rate of PDA at the end of 2 treatment courses were statistically compared between 2 groups. The feeding intolerance, upper gastrointestinal bleeding, renal failure, necrotizing enterocolitis, bronchopulmonary dysplasia, periventricular-intraventricular hemorrhage, the age at total enteral nutrition and the length of hospital stay were also compared between 2 groups. After the 1st and 2nd treatment courses, the PDA closure rate in group A was 84.61%, significantly higher than 52.94% in group B (P < .05), whereas there was no significant difference in the PDA patency rate between 2 groups (P > .05). No significant differences were observed regarding the feeding intolerance, renal failure, necrotizing enterocolitis, periventricular-intraventricular hemorrhage, bronchopulmonary dysplasia, the length of hospital stay and the age at total enteral nutrition between 2 groups (all P > .05). In addition, the incidence of upper gastrointestinal bleeding in group A was 7.69%, slightly lower than 5.88% in group B (P > .05). Compared with premature infants untreated with fetal lung maturation interventions before delivery, premature infants who receive fetal lung maturation interventions combined with acetaminophen for PDA are likely to obtain a higher PDA closure rate and a lower incidence rate of the upper gastrointestinal bleeding.

PMID:37327300 | DOI:10.1097/MD.0000000000034011

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Nevin Manimala Statistics

The association of hypoxia-inducible factor-1α and hypoxia-inducible factor-2α protein expression with clinicopathological characteristics in papillary thyroid carcinoma: A meta-analysis

Medicine (Baltimore). 2023 Jun 16;102(24):e34045. doi: 10.1097/MD.0000000000034045.

ABSTRACT

OBJECTIVE: To investigate the correlation of hypoxia-inducible factor-1α (HIF-1α) and hypoxia-inducible factor-2α (HIF-2α) protein expression with clinicopathologic characteristics in patients with papillary thyroid carcinoma (PTC) through a meta-analysis.

METHODS: PubMed, Embase, Web of Science, Cochrane, CNKI, Wanfang, and VIP databases were searched from the establishment of the database to February 2023. The New castle-Ottawa Scale was used to evaluate the quality of the literature. Rev Man 5.3 and Stata14.0 were used to conduct a meta-analysis of the included studies.

RESULTS: Twenty-eight articles with 2346 samples were included in the Meta-analysis. Compared with normal thyroid tissues, HIF-1α and HIF-2α proteins were highly expressed in PTC tumor tissues. High expression of HIF-1α protein was associated with tumor size (odds ratio [OR] = 4.50, 95% confidence interval [CI]: 2.88-7.04, P < .00001), lymph node metastasis (OR = 4.76, 95% CI: 3.78-5.99, P < .00001), TNM stage (OR = 3.67, 95% CI: 2.68-5.03, P < .00001), capsular invasion (OR = 2.30, 95% CI: 1.43-3.71, P = .0006 < .05), and extrathyroidal extension (OR = 10.96, 95% CI: 4.80-25.02, P < .00001). High expression of HIF-2α protein was associated with lymph node metastasis (OR = 4.18, 95% CI: 2.63-6.65, P < .00001), TNM stage (OR = 2.56, 95% CI: 1.36-4.82, P = .004 < .05), and capsular invasion (OR = 3.84, 95% CI: 1.66-8.88, P = .002 < .05). In addition, we concluded for the first time that there was a statistically significant difference in the expression of HIF-1α and HIF-2α in PTC patients (OR = 2.36, 95% CI: 1.26-4.42, P = .007 < .05).

CONCLUSIONS: The high expression of HIF-1α and HIF-2α proteins is closely related to some clinicopathological parameters of PTC, and can provide potential biological indicators for the diagnosis and prognosis of PTC.

PMID:37327294 | DOI:10.1097/MD.0000000000034045

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Nevin Manimala Statistics

Combining intralesional steroid injection with oral steroids in patients with idiopathic granulomatous mastitis

Medicine (Baltimore). 2023 Jun 16;102(24):e34055. doi: 10.1097/MD.0000000000034055.

ABSTRACT

Idiopathic granulomatous mastitis (IGM) is a chronic inflammatory breast disease. Currently, there is no international standard for steroid use in IGM, particularly for intralesional steroid injections. This study aimed to determine whether patients with IGM who received oral steroids could benefit from intralesional steroid injection. We analyzed 62 patients with IGM whose main clinical presentation was mastitis masses and who received preoperative steroid therapy. Group A (n = 34) received combined steroid treatment: oral steroids (starting dose, 0.25 mg/kg/d; tapered off) and intralesional steroid injection (20 mg per session). Group B (n = 28) received oral steroids only (starting dose, 0.5 mg/kg/d; tapered off). Both groups underwent lumpectomy at the end of steroid treatment. We analyzed the preoperative treatment time, preoperative mass maximum diameter reduction rate, side effects, postoperative satisfaction, and rate of IGM recurrence. The mean age of the 62 participants was 33.6 ± 2.3 (range, 26-46) years, and all had unilateral disease. We found that oral steroids combined with intralesional steroid injection yielded better therapeutic effects than did oral steroids alone. The median maximum diameter reduction of the breast mass was 52.06% in group A and 30.00% in group B (P = .002). Moreover, the use of intralesional steroids reduced the duration of oral steroid use; the median durations of preoperative steroid therapy were 4 and 7 weeks in groups A and B, respectively (P < .001). Group A patients were more satisfied (P = .035) with the postoperative results, including postoperative appearance and function. No statistically significant between-group differences were noted regarding side effects and recurrence rates. Preoperative administration of oral steroids combined with intralesional steroid injection yielded better therapeutic effects than did oral steroids alone and may be an effective future treatment for IGM.

PMID:37327292 | DOI:10.1097/MD.0000000000034055

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Nevin Manimala Statistics

Age and CD4+ T cell counts are inversely associated with HIV drug resistance mutations in treatment naive female sex workers

Medicine (Baltimore). 2023 Jun 16;102(24):e34060. doi: 10.1097/MD.0000000000034060.

ABSTRACT

The increasing prevalence of human immunodeficiency virus (HIV) drug resistance mutations (HIVDRM) in untreated seropositive persons has consequences for future treatment options. This is extremely important in key populations such as female sex workers (FSWs), where the prevalence of pretreatment drug resistance (PDR) and associated risk factors are unknown. In this study, we analyzed PDR and associated risk factors in recently diagnosed and treatment-naive FSWs in Nairobi, Kenya. In this cross-sectional study, we used 64 HIV-seropositive plasma samples collected from FSWs between November 2020 and April 2021. To identify HIVDRM, the pol gene was amplified and genotyped using sanger sequencing. The effects of age, tropism, CD4+ T cell count, subtype, and location on HIVDRM counts were examined using Poisson regression. Overall, the prevalence of PDR was 35.9% (95% CI: 24.3-48.9), which was strongly influenced by K103N and M184V mutations, which confer resistance to non-nucleoside reverse transcriptase inhibitors (NNRTIs) and nucleoside reverse transcriptase inhibitors (NRTI), respectively. Subtype A1 was predominant followed by subtype D with a notable increase in inter-subtype recombinants. We found statistically significant evidence that age was inversely related to HIVDRM. A FSW who is 1 year older had 12% less HIVDRM (incidence rate ratios [IRR]: 0.88; 95% CI: 0.82-0.95; P < .001), after adjusting for CD4+ T cell count, subtype, location, and tropism. Similarly, an increase in CD4+ T cell count by 1 unit, was associated with 0.4% fewer HIVDRM (IRR: 0.996; 95% CI: 0.994-0.998; P = .001), while controlling for the other variables. HIV-1 tropism was not associated with HIVDRM counts. In conclusion, our findings show a high prevalence of NNRTIs. Lower CD4+ T cell counts and younger age were significant risk factors that influenced HIVDRM loads. This finding underscores the relevance of targeted interventions and the importance of continuing to focus on FSWs as a way of addressing the HIV epidemic.

PMID:37327289 | DOI:10.1097/MD.0000000000034060

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Nevin Manimala Statistics

eNOS polymorphisms on male infertility: An updated systematic review and meta-analysis

Medicine (Baltimore). 2023 Jun 16;102(24):e33993. doi: 10.1097/MD.0000000000033993.

ABSTRACT

BACKGROUND: This meta-analysis was performed to examine the association of 3 endothelial nitric oxide synthase (eNOS) gene polymorphisms with male infertility.

METHODS: The literature on the relation between the mutant of eNOS and male infertility before July 1, 2022, was conducted in Pubmed, Medline, and Web of Science. The search strategy is as follows: (eNOS OR ECNOS OR nitric oxide synthase 3 OR NOS3) AND (polymorphism OR mutation OR variation OR SNP OR genotype) AND (male infertility). Statistical analysis was performed with the web of MetaGenyo, Stata 12, trial sequential analysis 0.9Beta, and the web of GTEx.

RESULTS: Overall, 13 studies (26 case-controls) were included involving 6518 cases and 5461 controls for 3 polymorphisms (rs2070744, rs1799983, rs61722009) of eNOS. We found that eNOS rs2070744 was correlated with an increased risk of male infertility (C vs. T: odds ratio [OR], 1.48; 95% confidence interval [CI], [1.19-1.85]; CC vs. TT: OR, 2.59; 95% CI, [1.40-4.80]; CT vs. TT: OR, 1.17; 95% CI, [1.00-1.38]; CC vs. CT + TT: OR, 2.50; 95% CI, [1.35-4.62]; CC + CT vs. TT: OR, 1.41; 95% CI, [1.21-1.64]). And eNOS rs1799983 was correlated with an increased risk of male infertility (allele contrast T vs. G: OR, 1.41; 95% CI, [1.01-1.96]; P = .043; recessive model TT vs. TG + GG: OR, 2.00; 95% CI, [1.03-3.90]; P = .042). In the stratified analysis of rs61722009, we found Asians might be correlated with an increased risk of male infertility (4a vs. 4b: OR, 1.50; 95% CI, [0.94-2.38]; 4a4a vs. 4b4b: OR, 2.56; 95% CI, [0.70-9.38]; 4a4b vs. 4b4b: OR, 1.36; 95% CI, [0.87-2.13]; 4a4a vs. 4a4b + 4b4b: OR, 2.57; 95% CI, [0.91-7.30]; 4a4a + 4a4b vs. 4b4b: OR, 1.44; 95% CI, [0.87-2.40]).

CONCLUSION: The eNOS rs2070744 polymorphism and rs1799983 are associated with the risk of male infertility, and rs61722009 might be a risk factor for Asians.

PMID:37327284 | DOI:10.1097/MD.0000000000033993

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Nevin Manimala Statistics

Comparison of pipeline classic and flex embolization devices in endovascular performance for intracranial aneurysms

Medicine (Baltimore). 2023 Jun 16;102(24):e34087. doi: 10.1097/MD.0000000000034087.

ABSTRACT

To investigate the endovascular performance of the Pipeline Classic embolization device (PED Classic) and PED Flex device (PED Flex) in the treatment of intracranial aneurysms. Fifty-three patients with intracranial aneurysms treated with the PED Classic were retrospectively enrolled into the PED Classic group, and 118 patients with intracranial aneurysms treated with the PED Flex were enrolled into the PED Flex group. The Procedure time, contrast dosage, fluoroscopy time, and perioperative complications were analyzed. The success rate of the stenting procedure was 100% in both groups. In the PED Classic group, 58 PED Classic devices were implanted, and 26 aneurysms underwent coil embolization. In the PED Flex group, 126 PED Flex devices were implanted, and 35 aneurysms underwent concomitant coil embolization. The procedure time was significantly (P < .001) greater in the PED Classic (159.0 ± 42.0 minutes) than in the PED Flex (121.9 ± 4.0 minutes) group. The dosage of contrast agent (156.4 ± 39.4 vs 110.1 ± 38.5 mL) and the total fluoroscopic time (34.7 ± 5.7 minutes vs 22.8 ± 7.6 minutes) were significantly (P < .001) greater in the PED Classic than in the PED Flex group. Peri-procedural complications occurred in 5 (9.4%) patients in the PED Classic group and in 3 (2.5%) patients in the Flex group, without a statistically significant (P = .11) difference. The performance of the PED Flex device may be safer and easier than that of the PED Classic device in the treatment of intracranial aneurysms despite some serious complications which remain to be prevented.

PMID:37327283 | DOI:10.1097/MD.0000000000034087

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Nevin Manimala Statistics

Reliability, validity, and sensitivity of short-form 36 health survey (SF-36) in patients with sick sinus syndrome

Medicine (Baltimore). 2023 Jun 16;102(24):e33979. doi: 10.1097/MD.0000000000033979.

ABSTRACT

Patients with sick sinus syndrome (SSS) experience a decrease in health-related quality of life (HRQoL), but there is currently no scale available to measure their unpleasant symptoms. The Short Form 36 Health Survey (SF-36) is a commonly used scale to assess HRQoL. In this study, we aimed to evaluate the reliability, validity, and sensitivity of SF-36 in patients with SSS. The sample included 199 eligible participants. We estimated the reliability through test-retest reliability, internal consistency, and split-half reliability. To examine the validity of the questionnaire, confirmatory factor analysis, convergent validity, and discriminant validity were conducted. Sensitivity was determined by the differences in age (cutoff 65 years) and New York Heart Association class. The intraclass correlational coefficients scores showed high test-retest reliability (intraclass correlational coefficients > 0.7). The overall Cronbach α was 0.87 (8 scales range: 0.85-0.87), showing good internal consistency reliability. The split-half reliability coefficient of the SF-36 is 0.814, indicating good reliability. Factor analysis showed that SF-36 subscales could be drawn into 6 components that explain 61% of the total variance. Results of model fit indicate comparative fit index = 0.9, incremental fit index = 0.92, Turker-Lewis index = 0.90, approximate root mean square error = 0.07, and normalized root mean square residual = 0.06. Convergent validity and discriminative validity showed adequate results. Comparison of different ages and New York Heart Association class groups showed statistical significance on most SF-36 subscales. We confirmed the SF-36 as a valid instrument for evaluating HRQoL patients with SSS. The reliability, validity, and sensitivity of SF-36 are acceptable for patients with SSS.

PMID:37327281 | DOI:10.1097/MD.0000000000033979