Categories
Nevin Manimala Statistics

Violent Crime, Physical Inactivity, and Obesity: Examining Spatial Relationships by Racial/Ethnic Composition of Community Residents

J Urban Health. 2023 Feb 16. doi: 10.1007/s11524-023-00716-z. Online ahead of print.

ABSTRACT

Violence is a public health issue that disproportionately affects communities of color in urban centers. There is limited understanding of how violent crime is associated with adult physical inactivity and obesity prevalence given the racial/ethnic composition of community residents. This research aimed to address this gap by examining census tract-level data in Chicago, IL. Ecological data gathered from a variety of sources were analyzed in 2020. Violent crime rate represented the number of police-reported incidents of homicide, aggravated assault, and armed robbery per 1,000 residents. Spatial error and ordinary least square regression models were evaluated to determine if violent crime rate was significant associated with prevalence (%) of adult physical inactivity and obesity among all Chicago census tracts (N = 798), majority non-Hispanic (NH) White tracts (n = 240), majority NH Black tracts (n = 280), majority Hispanic tracts (n = 169), and racially diverse tracts (n = 109). Majority was defined as ≥ 50% representation. After adjusting for socioeconomic and environmental measures (e.g., median income, grocery store availability, walkability index), violent crime rate was associated with % physical inactivity and % obesity at the census tract level in Chicago, IL (both p < 0.001). Associations were statistically significant among majority NH Black and Hispanic tracts, but not majority NH White and racially diverse tracts. Future studies should evaluate the structural drivers of violence and the influence these drivers have on adult physical inactivity and obesity risk, particularly in communities of color.

PMID:36795240 | DOI:10.1007/s11524-023-00716-z

Categories
Nevin Manimala Statistics

Body mass index and death by cognitive impairment

Aging Clin Exp Res. 2023 Feb 16. doi: 10.1007/s40520-023-02346-6. Online ahead of print.

ABSTRACT

BACKGROUND: Epidemiological studies have reported that among participants with impaired cognitive, overweight and mild obesity are associated with substantially improved survival, this finding has been termed the “obesity paradox” and has led to uncertainty about secondary prevention.

AIMS: To explore whether the association of BMI with mortality differed in different MMSE score, and whether the obesity paradox in patient with cognitive impairment (CI) is real.

METHODS: The study used data from CLHLS, a representative prospective population-based cohort study in China, which included 8348 participants aged ≥ 60 years between 2011 and 2018. The independent association between BMI and mortality in differed MMSE score by calculating hazard ratios (HRs) in multivariate Cox regression analysis.

RESULTS: During a median (IQR) follow-up of 41.18 months, a total of 4216 participants died. In the total population, underweight increased the risk of all-cause mortality (HRs, 1.33; 95% CI 1.23-1.44), compared with normal weight, and overweight was associated with a decreased risk of all-cause mortality (HR 0.83; 95% CI 0.74-0.93). However, compared to normal weight, only underweight was associated with increased mortality risk among participants with MMSE scores of 0-23, 24-26, 27-29, and 30, and the fully-adjusted HRs (95% CIs) for mortality were 1.30 (1.18, 1.43), 1.31 (1.07, 1.59), 1.55 (1.34, 1.80) and 1.66 (1.26, 2.20), respectively. The obesity paradox was not found in individuals with CI. Sensitivity analyses carried out had hardly any impact on this result.

CONCLUSION: We found no evidence of an obesity paradox in patients with CI, compared with patients of normal weight. But underweight individuals may have increased mortality risk whether in the population with CI or not. And overweight/obese people with CI should continue to aim for normal weight.

PMID:36795235 | DOI:10.1007/s40520-023-02346-6

Categories
Nevin Manimala Statistics

Efficacy and Safety of Sonic Hedgehog Inhibitors in Basal Cell Carcinomas: An Updated Systematic Review and Meta-analysis (2009-2022)

Am J Clin Dermatol. 2023 Feb 16. doi: 10.1007/s40257-023-00763-x. Online ahead of print.

ABSTRACT

BACKGROUND: Basal cell carcinoma (BCC) of the skin is the most common form of skin cancer in the United States. In life-threatening, advanced BCC, sonic hedgehog inhibitors (SSHis) remain a pre-eminent treatment option for locally advanced BCC and metastatic BCC.

OBJECTIVE: In this updated systematic review and meta-analysis, we aimed to better characterize the efficacy and safety of SSHis by including final updates from pivotal clinical trials and additional new recent studies.

METHODS: An electronic database search was performed for articles including clinical trials, prospective case series, and retrospective medical record reviews on human subjects. Overall response rates (ORRs) and complete response rates (CRRs) were the primary outcomes. For safety assessment, the prevalence of the following adverse effects was analyzed: muscle spasms, dysgeusia, alopecia, weight loss, fatigue, nausea, myalgias, vomiting, skin squamous cell carcinoma, increased creatine kinase, diarrhea, decreased appetite, and amenorrhea. Analyses were performed using R statistical software. Data were pooled using linear models with fixed effects meta-analysis for primary analyses, along with 95% confidence intervals (CIs) and p-values. Intermolecular differences were calculated using Fisher’s exact test.

RESULTS: A total of 22 studies (N = 2384 patients) were included in the meta-analysis: 19 studies assessing both efficacy and safety, 2 studies assessing safety only, and 1 study assessing efficacy only. Overall, the pooled ORR for all patients was 64.9% (95% CI 48.2-81.6%), implicating there is at least a partial response (z = 7.60, p < 0.0001) in most patients receiving SSHis. The ORR for vismodegib was 68.5% and 50.1% for sonidegib. The most common adverse effects for vismodegib and sonidegib were muscle spasms (70.5% and 61.0%, respectively), dysgeusia (58.4% and 48.6%, respectively), and alopecia (59.9% and 51.1%, respectively). Patients were likely to experience weight loss (35.1%, p < 0.0001) from vismodegib. Alternatively, patients taking sonidegib experienced more nausea, diarrhea, increased creatine kinase levels, and decreased appetite compared with those receiving vismodegib.

CONCLUSION: SSHis are an effective treatment for advanced BCC disease. Given the high discontinuation rates, management of patient expectations is warranted for compliance and achieving long-term efficacy. It is essential to stay updated with the latest discoveries on the efficacy and safety of SSHis.

PMID:36795228 | DOI:10.1007/s40257-023-00763-x

Categories
Nevin Manimala Statistics

Distribution and clinical features of lymphomas involving skin in Taiwan

Kaohsiung J Med Sci. 2023 Feb 16. doi: 10.1002/kjm2.12659. Online ahead of print.

ABSTRACT

A wide variety of primary and secondary lymphoma types involves the skin. However, reports with comparisons between both groups are limited in Taiwan. We retrospectively enrolled all cutaneous lymphomas and evaluated their clinicopathologic features. There were 221 cases of lymphoma: 182 (82.3%) primary and 39 (17.7%) secondary. Mycosis fungoides was the most common primary T-cell lymphoma, 92 (41.7%) cases, followed by CD30-positive T-cell lymphoproliferative disorders including lymphomatoid papulosis (n = 33, 14.9%) and cutaneous anaplastic large cell lymphoma (n = 12, 5.4%). The most frequent primary B-cell lymphomas were marginal zone lymphoma (n = 8, 3.6%) and diffuse large B-cell lymphoma (DLBCL), leg type (n = 8, 3.6%). DLBCL including variants was the most common secondary lymphoma involving skin. Most primary lymphomas presented at low-stage (T-cell, 86%; B-cell, 75%), whereas the majority of secondary lymphomas presented at high-stage (T-cell, 94%; B-cell, 100%). Patients with secondary lymphomas had an older mean age, more frequent B symptoms, lower serum albumin and hemoglobin, and a higher frequency of atypical lymphocytes in blood than those with primary lymphomas. In primary lymphomas, older age, lymphoma types, decreased lymphocyte counts and atypical lymphocytes in blood were poorer prognostic factors. In secondary lymphoma patients, lymphoma types, high serum lactate dehydrogenase and low hemoglobin levels predicted poorer survival. We found that the distribution of primary cutaneous lymphomas in Taiwan mirrors that of other Asian countries but shows some differences as compared with Western countries. Primary cutaneous lymphomas have a better prognosis than secondary lymphomas. Histologic classification of lymphomas highly correlated with disease presentation and prognosis.

PMID:36794661 | DOI:10.1002/kjm2.12659

Categories
Nevin Manimala Statistics

Evaluation of the self-expanding effect of carotid stents in the early postoperative period

Vascular. 2023 Feb 16:17085381231158494. doi: 10.1177/17085381231158494. Online ahead of print.

ABSTRACT

PURPOSE: To evaluate the expansion effect of self-expandable stents during the first week after carotid artery stenting (CAS) procedure and to examine the variation of the effect according to the carotid plaque type.

METHODS: Seventy stenotic carotid arteries of 69 patients were stented by using self-expanding Wallstents with diameters of 7 and 9 mm, after detection of stenosis and plaque type by Doppler ultrasonography. Post-stent aggressive ballooning was avoided and residual stenosis rates were measured with digital subtraction angiography. After the stenting procedure, the caudal, narrowest, and cranial diameters of stents were measured with ultrasonography at 30 min, first day and first week. Stent diameter increase and change according to plaque type were evaluated. Two-way repeated measure ANOVA test was used for statistical analysis.

RESULTS: A significant increase was observed in the mean stent diameter in the three stent regions (caudal, narrow, and cranial) from the 30th minute to the first and seventh days (p < 0.001). The most prominent stent expansion occurred in the cranial and narrow segments within the first day. In the narrow stent region; Stent diameter increase between 30th minute-first day, 30th minute-first week, and first day-first week were all significant (p < 0.001). At 30 min, first day, and first week, no significant difference was detected between plaque type and stent expansion in caudal, narrow, and cranial regions (p = 0.286).

CONCLUSION: We think that keeping the lumen patency limited to 30% residual stenosis after CAS procedure by applying minimal post-stenting balloon dilatation and leaving the remaining lumen expansion to the self-expanding feature of the Wallstent might be a sensible approach in order to avoid embolic events and excessive carotid sinus reactions (CSR).

PMID:36794658 | DOI:10.1177/17085381231158494

Categories
Nevin Manimala Statistics

Comparative Evaluation of Trabecular Bone Structures of Bruxist and Non-Bruxist Individuals with Bone Apposition in The Mandible Angle Region by Fractal Analysis

J Oral Rehabil. 2023 Feb 16. doi: 10.1111/joor.13435. Online ahead of print.

ABSTRACT

OBJECTIVE: This study aimed to compare the trabecular internal structure of different regions of the mandible according to the grades of appositional classification in the mandible angle region in probable bruxist individuals and non-bruxist G0(Convex course of the basal cortex, no directional change, no bone apposition) individuals by measuring Fractal Dimension (FD) on panoramic radiographs.

METHODS: 200 sample jaws, bilaterally, of 80 probable bruxists and 20 non-bruxist G0 individuals were included in the study. According to the classification in the literature, each mandible angle apposition severity was classified as G0-G1-G2-G3. FD was calculated by selecting the region of interest (ROI) area of 7 regions from each sample. Gender differences in changes between ROIs in radiographs and independent samples t-test were evaluated. Relation between categorical variables was determined by chi square test(p<0.05).

RESULTS: In the comparison of the probable bruxist and non-bruxist G0 groups, FD was found to be statistically significantly higher in the mandible angle(p=0.013) and cortical bone(p=0.000) regions in the probable bruxist group than in the non-bruxist G0 group. There is a statistically significant difference between probable bruxist G0 and non-bruxist G0 grades in terms of FD averages in cortical bone (p<0.001). A statistically significant difference was found in the relationship of ROIs with gender in canine apex(p=0.021) and canine distal(p=0.041) regions.

CONCLUSION: FD was found to be higher in the mandibular angle region and cortical bone in probable bruxist individuals than in non-bruxist G0 individuals. Morphological changes seen in the mandible angulus region may be a finding that may raise suspicion for bruxism for clinicians.

PMID:36794633 | DOI:10.1111/joor.13435

Categories
Nevin Manimala Statistics

Effect of fluence levels on prophylactic corneal cross-linking for laser in situ keratomileusis and transepithelial photorefractive keratectomy

Acta Ophthalmol. 2023 Mar;101(2):e185-e196. doi: 10.1111/aos.15230. Epub 2022 Aug 5.

ABSTRACT

PURPOSE: The purpose of this study is to assess the effect of various fluence levels on prophylactic corneal cross-linking (CXL) combined with femtosecond laser in situ keratomileusis (FS-LASIK-Xtra) or transepithelial photorefractive keratectomy (TransPRK-Xtra) on biomechanics, demarcation line (DL), and stromal haze.

METHODS: Prospective analysis where two prophylactic CXL protocols (lower/higher fluence [LF/HF]: 30 mw/cm2 , 60/80 s, 1.8/2.4 J/cm2 ) were performed as part of either an FS-LASIK-Xtra or TransPRK-Xtra procedure. Data were collected preoperatively and at 1 week and 1, 3, and 6 months postoperatively. Main outcome measures were (1) dynamic corneal response parameters and the stress-strain index (SSI) from Corvis, (2) actual DL depth (ADL), and (3) stromal haze on OCT images analysed by a machine learning algorithm.

RESULTS: Eighty-six eyes from 86 patients underwent FS-LASIK-Xtra-HF (21 eyes), FS-LASIK-Xtra-LF (21 eyes), TransPRK-Xtra-HF (23 eyes), and TransPRK-Xtra-LF (21 eyes). SSI increased similarly by around 15% in all groups 6 months postoperatively (p = 0.155). All other corneal biomechanical parameters were statistically significant worsening postoperatively, but the change was similar in all groups. At 1 month postoperatively, there was no statistical difference in mean ADL among four groups (p = 0.613), mean stromal haze was similar between the two FS-LASIK-Xtra groups, but higher in the TransPRK-Xtra-HF group compared with the TransPRK-Xtra-LF group.

CONCLUSIONS: FS-LASIK-Xtra and TransPRK-Xtra lead to a similar ADL and improve SSI equally. Lower fluence prophylactic CXL might be recommended as it achieves similar mean ADL with potentially less induced stromal haze, especially in TransPRK. The clinical relevance and applicability of such protocols remains to be assessed.

PMID:36794626 | DOI:10.1111/aos.15230

Categories
Nevin Manimala Statistics

The prevalence and influencing factors of gag reflex in children aged 7-14 years in the dental setting

J Oral Rehabil. 2023 Feb 16. doi: 10.1111/joor.13432. Online ahead of print.

ABSTRACT

BACKGROUND: Gag reflex may occur in patients of all ages and often considered having a multifactorial etiology.

OBJECTIVE: The aim of the study was to evaluate the prevalence and influencing factors of gag reflex in Turkish children aged 7-14 years in the dental setting.

METHODS: This cross-sectional study was carried out among 320 children aged between 7-14 years. First, an anamnesis form which include sosyodemographic status, monthly level of income, children past medical, and dental experiences was filled by mothers. Children’s fear levels were evaluated using the Dental Subscale of Children’s Fear Survey Schedule(CFSS-DS) while mother’s anxiety levels using the Modified Dental Anxiety Scale(MDAS). The revised dentist section of gagging problem assessment questionnaire (GPA-R-de) were used for both children and mothers. Statistical analysis were done with SPSS program.

RESULTS: The prevalence of gag reflex among children was 34.1%, among mothers was 20.3%. The association between child and mother gagging was found statistically significant (χ2=53.121, p<0.001). When the mother of the child gagged, the risk of child gagging increases 6.83 times (p<0.001). Higher CFSS-DS scores of children increase risk of gagging (OR=1.052, p=0.023). Children who were previously treated mostly in public hospitals significantly more likely to gag compared with private dental clinics (OR=10.990, p<0.001).

CONCLUSION: It was concluded that negative past dental experiences, previous dental treatments with local anesthesia, history of hospital admission, number and place of previous dental visits, dental fear level of children, and low education level and gagging of mother have an influence on the gagging of children.

PMID:36794577 | DOI:10.1111/joor.13432

Categories
Nevin Manimala Statistics

Propensity score-based methods for causal inference and external data leveraging in regulatory settings: From basic ideas to implementation

Pharm Stat. 2023 Feb 16. doi: 10.1002/pst.2294. Online ahead of print.

ABSTRACT

The breakthrough propensity score methodology was formulated by Rosenbaum and Rubin in the 1980s for the mitigation of confounding bias in non-randomized comparative studies to facilitate causal inference for treatment effects. The methodology had been used mainly in epidemiological and social science studies that may often be exploratory, until it was adopted by FDA/CDRH in 2002 and applied in the evaluation of medical device pre-market confirmatory studies, including those with a control group extracted from a well-designed and executed registry database or historical clinical studies. Around 2013, following the Rubin outcome-free study design principle, the two-stage propensity score design framework was developed for medical device studies to safeguard study integrity and objectivity, thereby strengthening the interpretability of study results. Since 2018, the scope of the propensity score methodology has been broadened so that it can be used for the purpose of leveraging external data to augment a single-arm or randomized traditional clinical study. All these statistical approaches, collectively referred to as propensity score-based methods in this article, have been considered in the design of medical device regulatory studies and stimulated related research, as evidenced by the latest trends in journal publications. We will provide a tutorial on the propensity score-based methods from the basic idea to their implementation in regulatory settings for causal inference and external data leveraging, along with step-by-step descriptions of the procedures of the two-stage outcome-free design through examples, which can be used as templates for real study proposals.

PMID:36794571 | DOI:10.1002/pst.2294

Categories
Nevin Manimala Statistics

Hepatic epithelioid angiomyolipoma is scattered and unsuitable for surgery: a case report

J Int Med Res. 2023 Feb;51(2):3000605231154657. doi: 10.1177/03000605231154657.

ABSTRACT

Hepatic epithelioid angiomyolipoma (HEAML) is a rare tumour of mesenchymal tissue with a malignant tendency. Occurring most frequently in women, the relative incidence in men and women, according to incomplete statistics, is approximately 1:5. In rare cases, disease occurrence and development is hidden. Lesions are generally discovered as chance findings by patients; abdominal pain is the first symptom, and imaging has no specificity in diagnosing the disease. Therefore, great difficulties exist in the diagnosis and treatment of HEAML. Here, the case of a 51-year-old female patient with a history of hepatitis B, and abdominal pain over 8 months as the initial symptom, is described. The patient was found to have multiple intrahepatic angiomyolipoma. Due to the small and scattered foci, complete resection was impossible, and because of her history of hepatitis B, conservative treatment was undertaken, with the patient undergoing regular follow-up. When hepatic cell carcinoma could not be excluded, the patient was treated with transcatheter arterial chemoembolization. No tumour neogenesis or metastasis was detected at the 1-year follow-up.

PMID:36794565 | DOI:10.1177/03000605231154657