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Nevin Manimala Statistics

Serum Vitamin D, Zinc Levels and the Relationship between them in Children and Adolescents

Clin Lab. 2022 Aug 1;68(8). doi: 10.7754/Clin.Lab.2021.211003.

ABSTRACT

BACKGROUND: Along with vitamin D deficiency, a common global health problem in developed and developing countries, zinc deficiency also remains one of the most common micronutrient deficiencies-related public health problems in some parts of the world. Determination of vitamin D and Zn status is important for the growth, development, and health of school-age children, as well as their intellectual achievement and academic performance. In this study, we aimed to evaluate serum 25(OH)D and Zn levels and the relationship between them in a nationally representative sample of Turkish children and adolescents.

METHODS: A total of 541 children and adolescents aged 1 – 16 years were included in our study whose vitamin D and zinc test levels were measured and who applied to the Basaksehir Cam and Sakura City Hospital Pediatric Outpatient Clinic. Cases were examined by dividing them into subgroups according to their vitamin D levels (≤ 15 ng/mL deficiency; 15 – 20 ng/mL insufficiency; ≥ 20 ng/mL sufficiency) and age (< 5 years preschool; 5 – 10 years middle childhood; 11 – 16 years adolescence).

RESULTS: The levels of 25(OH)D were lower than 20 ng/mL in 33% of the children. There was deficiency in 80 (15%) and insufficiency in 99 (18%) cases. A statistically significant difference was found in 25(OH)D and Zn levels in groups separated by 25(OH)D level and age (p < 0.001). A positive significant correlation was found between serum 25(OH)D and Zn levels (r = 0.468; p < 0.001). A negative correlation was found between 25(OH) D levels and age (r = -0.261; p < 0.001) and body mass index (BMI) (r = -0.308; p < 0.001).

CONCLUSIONS: In our study, we found high levels of vitamin D deficiency and insufficiency and a significant positive correlation between serum 25(OH)D and Zn levels in the pediatric population. Based on this possible contribution, we think that providing vitamin D support to children of all ages, including adolescents, and thus improving zinc levels may be beneficial in protecting from diseases that lead to morbidity and mortality as a result of reducing the rate of growth and development retardation, regulating of bone development, and contributing to the development of the immune system.

PMID:35975493 | DOI:10.7754/Clin.Lab.2021.211003

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Nevin Manimala Statistics

The Correlation between Serum Lipoprotein(a) and Risk of Mortality in Patients on Peritoneal Dialysis

Clin Lab. 2022 Aug 1;68(8). doi: 10.7754/Clin.Lab.2022.220102.

ABSTRACT

BACKGROUND: Patients with peritoneal dialysis commonly have severe disorders of lipid metabolism, with particularly severe changes in serum lipoprotein(α) [Lp(α)]. Serum Lp(α) may play a role in the risk of mortality in peritoneal dialysis patients. The aim was to investigate the correlation between high serum Lp(α) levels and all-cause mortality and death from cardiovascular events and infection in peritoneal dialysis patients.

METHODS: Three hundred and ninety-two patients with end-stage kidney disease who started peritoneal dialysis treatment between March 1, 2007 and May 31, 2020, were selected. Clinical data of all enrolled patients after 3 months of peritoneal dialysis were collected. Based on the median value of serum Lp(α) level, all enrolled patients were divided equally into a high serum Lp(α) level group (> 275.95 mg/L, n = 196) and a low serum Lp(α) level group (< 275.95 mg/L, n = 196). SPSS25.0 statistical software was used to analyze the factors affecting serum Lp(α) levels and the correlation between high serum Lp(α) levels and all-cause mortality and death from cardiovascular events and infection in peritoneal dialysis patients.

RESULTS: Binary multivariate logistic regression analysis showed that higher low-density lipoprotein (LDL) levels (OR = 1.614, 95% CI: 1.261 – 2.068, p = 0.000) and high Body Mass Index (BMI) levels (OR = 1.063, 95% CI: 1.004 – 1.126, p = 0.036) were the risk factors for the high serum Lp(α) levels. High serum albumin levels (OR = 0.959, 95% CI: 0.927 – 0.991, p = 0.014) and high parathyroid hormone levels (OR = 0.999, 95% CI: 0.997 – 1.000, p = 0.010) were protective factors for the high serum Lp(α) levels. The cumulative survival of patients in the high serum Lp(α) level group was lower in death from cardiovascular events as shown by Kaplan-Meier survival analysis (Log-rank test χ2 = 4.348, p = 0.037). Multivariate Cox regression analysis showed that high serum Lp(α) levels were an independent risk factor for death from cardiovascular events in peritoneal dialysis patients (HR = 1.002, 95% CI: 1.001 – 1.003, p = 0.001).

CONCLUSIONS: The occurrence of high serum Lp(α) levels in peritoneal dialysis patients was positively associated with LDL and BMI, and negatively associated with serum albumin and parathyroid hormone levels. High serum Lp(α) levels were related to the risk of death from cardiovascular events in peritoneal dialysis patients.

PMID:35975486 | DOI:10.7754/Clin.Lab.2022.220102

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Nevin Manimala Statistics

Predicting elimination of evolving virus variants

Math Med Biol. 2022 Aug 16:dqac012. doi: 10.1093/imammb/dqac012. Online ahead of print.

ABSTRACT

As the SARS-CoV-2 virus spreads around the world new variants are appearing regularly. Although some countries have achieved very swift and successful vaccination campaigns, on a global scale the vast majority of the population is unvaccinated and new variants are proving more resistant to the current set of vaccines. We present a simple model of disease spread, which includes the evolution of new variants of a novel virus and varying vaccine effectiveness to these new strains. We show that rapid vaccine updates to target new strains are more effective than slow updates and containing spread through non-pharmaceutical interventions is vital while these vaccines are delivered. Finally, when measuring the key model inputs, e.g. the rate at which new mutations and variants of concern emerge, is difficult we show how an observable model output, the number of new variants that have been seen, is strongly correlated with the probability the virus is eliminated.

PMID:35975450 | DOI:10.1093/imammb/dqac012

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Nevin Manimala Statistics

The effect of arthroscopic rotator cuff repair on sleep in degenerative full-thickness tears

Niger J Clin Pract. 2022 Aug;25(8):1344-1347. doi: 10.4103/njcp.njcp_219_22.

ABSTRACT

AIMS AND BACKGROUND: Shoulder pathologies are frequently linked to sleep disturbances. The aim of this study is to investigate the effect on sleep disorders in patients with arthroscopic rotator cuff repair.

MATERIALS AND METHODS: Thirty-three patients who underwent arthroscopic rotator cuff repair due to a full-thickness rotator cuff tear were prospectively analyzed. The Pittsburgh Sleep Quality Index (PSQI), the American Shoulder and Elbow Surgeons Shoulder Score (ASES), visual analog scale (VAS), and Constant and Murley shoulder scores before surgery and at 6 months postoperatively. Preoperative clinical and radiological parameters of the patients were also evaluated.

RESULTS: The study analyzed 33 patients with a median age of 59.79 ± 9.0 years. There was a significant difference preoperatively versus postoperatively in terms of all PSQI global scores and subdivisions (P < 0.001). A statistically significant improvement was determined by the simple shoulder test, the Constant and Murley shoulder scores, and VAS (P < 0.001).

CONCLUSION: Sleep disturbance is common in patients with symptomatic rotator cuff tear, and sleep disturbance can resolve after arthroscopic rotator cuff repair.

PMID:35975385 | DOI:10.4103/njcp.njcp_219_22

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Nevin Manimala Statistics

Determinants of work and social participation in patients with psoriatic arthritis in the Netherlands: an observational study

BMC Rheumatol. 2022 Aug 17;6(1):49. doi: 10.1186/s41927-022-00279-7.

ABSTRACT

BACKGROUND: Psoriatic arthritis can cause pain, disability, and permanent joint damage. This can lead to impairments in work and social participation. Little is known about the extent of these impairments in routine practice. With this study, we aim to examine the extent of work and activity impairment in (subgroups of) Dutch patients with psoriatic arthritis (PsA), and to examine determinants associated with this impairment.

METHODS: This is an observational study using data collected from the electronic health records of PsA patients treated at the Sint Maartenskliniek, the Netherlands. Data about work and activity impairment were collected via the Work Productivity and Activity Impairment questionnaire. To compare our PsA-cohort with the Dutch general population, we used age- and sex-matched data derived from the Central Bureau of Statistics. Regression analyses were performed to examine determinants of work and activity impairment.

RESULTS: In total, 246 patients were included, of which 126 (51.2%) were female. Mean age (S.D.) was 55.7 (13.2) years. Compared with the Dutch general population, work for pay (WFP) was significantly lower in PsA (52.9% versus 62.6%, P < 0.001). In PsA, younger age and better physical function were associated with WFP status (P < 0.05). Higher disease activity, worse physical function, and worse mental health-related quality of life were associated with both more work and activity impairment (P < 0.05). Furthermore, reaching low disease activity status (LDA) according to Psoriatic ArthritiS Disease Activity Score (PASDAS; ≤ 3.2) was associated with less work and activity impairment than reaching LDA according to DAS28-CRP (≤ 2.9) (P < 0.05).

CONCLUSIONS: In PsA patients, worse physical function was associated with a lower likelihood of having WFP, and higher work and activity impairment. PASDAS LDA as a goal for treat to target, compared to DAS28-CRP, appears to favour the reduction of work and activity impairment.

PMID:35974423 | DOI:10.1186/s41927-022-00279-7

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Nevin Manimala Statistics

Evaluation of the effectiveness of surveillance policies to control the COVID-19 pandemic in São Paulo, Brazil

Glob Health Res Policy. 2022 Aug 17;7(1):27. doi: 10.1186/s41256-022-00260-4.

ABSTRACT

BACKGROUND: Surveillance efforts are essential to pandemic control, especially where the state is the primary health provider, such as Brazil. When public health testing guidelines limit molecular tests, there are reductions in detection efforts aimed at early recognition, isolation, and treatment of those infected with the virus. This study evaluates the effectiveness of surveillance policies to control the COVID-19 pandemic in São Paulo.

METHODS: We conducted an interrupted time series analysis with a segmented regression model to analyze if changes in the state’s guidelines improved RT-PCR testing outcomes in Brazil’s most affluent and largest state, São Paulo. Anonymized daily data on the RT-PCR tests conducted in public laboratories belonging to the state-wide network from March 1, 2020 to June 5, 2021 were extracted from the Sao Paulo State open-source database, while the data on the genomic sequences were obtained from GISAID. We then aggregated these data for the 17 regional health departments in the state to evaluate regional-level outcomes.

RESULTS: The public health system restricted RT-PCR testing to hospitalized cases in the first months. Testing was expanded to permit symptomatic testing of non-hospitalized persons only in July 2020, but a statistically significant increase in surveillance efforts was not observed. Case definition was expanded to allow case confirmation based on clinical, laboratory and image data criteria other than an RT-PCR test without increasing the testing effort for asymptomatic suspicious cases in September 2020. There was an increase in the mean volume of testing in each RHD, but the test positivity rate increased due to insufficient testing expansion. Results also show an uneven improvement in testing outcomes following these changes across the state’s regional health departments.

CONCLUSIONS: Evidence suggests that lower RT-PCR testing and genomic surveillance efforts are associated with areas characterized by a higher population concentration and a greater population reliance on the public health system. Our results highlight the need to structure health surveillance and information systems for disease control and prevention in emergency settings considering local demographics and vulnerabilities. In high prevalence settings, efforts at identifying and including vulnerable populations in routine and enhanced surveillance programs during COVID-19 must be significantly improved.

PMID:35974420 | DOI:10.1186/s41256-022-00260-4

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Nevin Manimala Statistics

Vectorial capacities for malaria in eastern Amazonian Brazil depend on village, vector species, season, and parasite species

Malar J. 2022 Aug 16;21(1):237. doi: 10.1186/s12936-022-04255-x.

ABSTRACT

BACKGROUND: The vector species in the Amazon River Basin are regionally and locally diverse, which makes it imperative to understand and compare their roles in malaria transmission to help select appropriate methods of intervention and evaluation. The major aim of this study was to measure the vectorial capacity of five Anopheles species in three neighbouring villages, for two Plasmodium parasite species affecting humans.

METHODS: From 32 consecutive months of sampling in three villages, 1.5-7.0 km apart, on the Matapi River, Amapá State, Brazil, vectorial capacities (C) were estimated as time series for An. darlingi, An. marajoara, An. nuneztovari, An. triannulatus, and An. intermedius. Monthly parity measurements for each vector species were used to estimate daily survivorship and compared to estimates of survivorship from mark-release-recapture experiments. Gonotrophic cycle lengths were estimated through a time-series analysis of parity data, and durations of sporogony at study site temperatures for the two malaria parasite species were estimated from previous literature.

RESULTS: The absolute abundances of five vector species were strongly tracked by the spatial variation in C among villages. Temporally, C varied between wet and dry seasons, with An. darlingi, An. marajoara and An. triannulatus exhibiting higher C in the dry season from August to December, and An. nuneztovari its highest C early in the rainy season in January and February. Anopheles intermedius exhibited higher C in the rainy season from April to June than in the dry season. Significant differences in overall survival for each independent variable, and a significant difference in C between wet and dry seasons, among villages, and among vector species for both Plasmodium falciparum and Plasmodium vivax. A generalized linear mixed model (GLMM) analysis by village showed significant effects of vector species on C in only one village, but significant effects of parasite species in all three. Although the GLMM analysis detected no significant parasite x vector species interaction effects on C, effects on C of spline regressions of C dynamics x vector species interactions were significant in all villages.

CONCLUSIONS: These detailed analyses of entomological and parasitological variables revealed hidden complexities of malaria epidemiology at local scales in neighbouring riverine villages of the Amazon Region.

PMID:35974410 | DOI:10.1186/s12936-022-04255-x

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Nevin Manimala Statistics

Reducing care burden and improving adherence to health-promoting behaviors among family caregivers of patients with multiple sclerosis through a healthy lifestyle empowerment program

BMC Nurs. 2022 Aug 16;21(1):229. doi: 10.1186/s12912-022-00961-8.

ABSTRACT

BACKGROUND AND AIM: The chronic, progressive nature of multiple sclerosis (MS) demands long-term family-centered care for patients. In view of that, inadequate education and support provided for the family caregivers (FCGs) of MS patients increase their care burden (CB) and affect their lifestyle. This study aimed to investigate the impact of a healthy lifestyle empowerment program (HLEP) on CB and adherence to health-promoting behaviors (HPBs) in the FCGs of patients suffering from MS.

METHODS: In this experimental study with parallel groups, conducted in Iran in 2020, a total of 60 FCGs of MS patients were recruited, and then randomized into intervention (n = 30) or control (n = 30) groups. The intervention program, the HLEP, was thus implemented virtually via WhatsApp in the intervention group upon coordinating with the MS Association in the city of Yasuj, Iran, and selecting the participants. The data were collected at three stages, including baseline, follow-up 1 (immediately after the HLEP), and follow-up 2 (three months after HLEP). The research tools were a 14-item demographic survey questionnaire, the 24-item Caregiver Burden Inventory, and the 52-item Health-Promoting Lifestyle Profile-II. Independent-samples t-test, repeated measures analysis of variance, and a linear mixed model were further used for statistical analyses, considering the significant level of 0.05.

RESULTS: The study results revealed a significant decrease in the CB scores from the baseline to the follow-up 2 (77.03 ± 15.76 to 42.33 ± 12.37), and a significant increase in the values of adherence to HPBs from the baseline to the follow-up 2 (123.53 ± 14.01 to 148.06 ± 15.04) were obtained in the intervention group (p < 0.001). The linear mixed model also showed that the significant absolute changes in the scores of CB and adherence to HPBs during the follow-ups in the intervention group, compared to those in the controls, were – 8.92 and 16.47 units, respectively (p < 0.001).

CONCLUSION: Health care managers, planners, and providers are highly recommended to start developing and implementing various HLEPs for reducing CB and improving adherence to HPBs among the FCGs of patients with MS.

PMID:35974405 | DOI:10.1186/s12912-022-00961-8

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Nevin Manimala Statistics

A survey regarding orthodontic treatment among contemporary college freshmen in China

BMC Oral Health. 2022 Aug 16;22(1):355. doi: 10.1186/s12903-022-02388-8.

ABSTRACT

BACKGROUND: A growing number of Chinese residents are seeking orthodontic treatment. The aim of the study was to investigate rates of orthodontic publicity, orthodontic treatment history and related factors among college freshmen in China, to preliminarily understand the current situation of orthodontic publicity and treatment in China, especially after the 2020s.

METHODS: Referred to previous studies, a self-designed online questionnaire of Chinese college freshmen was conducted. The questionnaire was divided into two parts, after collecting basic information, we investigated orthodontic publicity rate and orthodontic treatment history with starting age, relapse phenomenon, satisfaction score and willingness to re-treatment. Factors hindering first-time and second-time treatment were also collected. The statistical analysis was performed using the Chi-square test, t-test, Kruskal-Wallis test and logistic regression analysis.

RESULTS: The response rate was 100% and 3308 responses were included. The male to female ratio was 1524:1784 with a mean age of 18.43 years (SD 0.91 years). Statistically significant of economic administrative regions, age, major and orthodontics engagement of relatives or friends were found on prevalence and rate of orthodontic treatment (P < 0.05). Average opinion on orthodontic treatment was “satisfied” and most claimed a phenomenon of relapse (slight relapse: 38.22%, obvious relapse: 23.12%), where age, major and orthodontics engagement of relatives or friends showed statistically significant. Retreatment willingness was correlation with start age and relapse phenomenon. For those who refused first-time treatment, except for good tooth arrangement condition, pain, long-time span, and cost weighted, while for those who refused re-treatment, the fair of discomfort and long-time span ranked at the top.

CONCLUSIONS: In contemporary China, the prevalence and rate of orthodontic treatment had been greatly promoted. Earlier age for receiving orthodontic treatment was also discovered. Subjective factors regarding psychology, self-requirement affected the need of orthodontic treatment. Contemporary Chinese college freshmen had a high ability of judging dental alignment, while improve of overall orthodontic care level is still required.

PMID:35974403 | DOI:10.1186/s12903-022-02388-8

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Nevin Manimala Statistics

Magnitude and determinants of suicide among overweight reproductive-age women, Chacha and Debre Berhan Town, Ethiopia: community based cross-sectional study

Int J Ment Health Syst. 2022 Aug 16;16(1):41. doi: 10.1186/s13033-022-00551-w.

ABSTRACT

BACKGROUND: The magnitude and impact of women’s suicidal behaviors, like suicidal ideation and suicidal attempts, are an important public health problem in low and middle-income countries, including Ethiopia. Suicidal behavior and being overweight are typical complications of reproductive age with many undesired consequences. Despite both having a serious impact on women of reproductive age, they are neglected in Ethiopia. Accordingly, this study aimed to examine the magnitude and determinants of suicide among overweight reproductive-age women in Chacha and Debre Berhan towns, Ethiopia.

METHODS: A community-based cross-sectional study design was once employed from April 1, 2020 to June 1, 2020. The Composite International Diagnostic Interview was used to measure suicidal attempts and ideation, and the data was collected by direct interview. All collected data were entered into Epi Data version 4.6 and analyzed with SPSS version 25. Bivariate and multivariable regression models were used to determine the factors associated with a suicidal attempt and ideation. A p-value of less than 0.05 was considered statistically significant.

RESULT: Of the total participants, 523 were included, with a response rate of 93.7%. The prevalence of suicidal ideation was 13.0% (95% CI 10.1-15.9), whereas suicidal attempt was 2.3% (95% CI 1.1-3.6). Based on multivariable regression analysis, the odds of suicidal ideation have been higher among overweight women with stressful life events, depression, and younger age groups.

CONCLUSION: Suicidal ideation was frequent in overweight reproductive-age women. Preventing, treating, and using coping mechanisms regarding identified factors is a good way to minimize the burden of suicide.

PMID:35974397 | DOI:10.1186/s13033-022-00551-w