scholarly journals A logistic regression analysis of risk factors in ME/CFS pathogenesis

BMC Neurology ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Eliana M. Lacerda ◽  
Keith Geraghty ◽  
Caroline C. Kingdon ◽  
Luigi Palla ◽  
Luis Nacul
Keyword(s):  
Risk Factors ◽  
Multiple Sclerosis ◽  
Regression Analysis ◽  
Risk Factor ◽  
Family History ◽  
Disease Onset ◽  
Healthy Controls ◽  
Lower Income ◽  
Wide Range ◽  
History Of

Abstract Background Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a complex disease, whose exact cause remains unclear. A wide range of risk factors has been proposed that helps understanding potential disease pathogenesis. However, there is little consistency for many risk factor associations, thus we undertook an exploratory study of risk factors using data from the UK ME/CFS Biobank participants. We report on risk factor associations in ME/CFS compared with multiple sclerosis participants and healthy controls. Methods This was a cross-sectional study of 269 people with ME/CFS, including 214 with mild/moderate and 55 with severe symptoms, 74 people with multiple sclerosis (MS), and 134 healthy controls, who were recruited from primary and secondary health services. Data were collected from participants using a standardised written questionnaire. Data analyses consisted of univariate and multivariable regression analysis (by levels of proximity to disease onset). Results A history of frequent colds (OR = 8.26, P <= 0.001) and infections (OR = 25.5, P = 0.015) before onset were the strongest factors associated with a higher risk of ME/CFS compared to healthy controls. Being single (OR = 4.41, P <= 0.001), having lower income (OR = 3.71, P <= 0.001), and a family history of anxiety is associated with a higher risk of ME/CFS compared to healthy controls only (OR = 3.77, P < 0.001). History of frequent colds (OR = 6.31, P < 0.001) and infections before disease onset (OR = 5.12, P = 0.005), being single (OR = 3.66, P = 0.003) and having lower income (OR = 3.48, P = 0.001), are associated with a higher risk of ME/CFS than MS. Severe ME/CFS cases were associated with lower age of ME/CFS onset (OR = 0.63, P = 0.022) and a family history of neurological illness (OR = 6.1, P = 0.001). Conclusions Notable differences in risk profiles were found between ME/CFS and healthy controls, ME/CFS and MS, and mild-moderate and severe ME/CFS. However, we found some commensurate overlap in risk associations between all cohorts. The most notable difference between ME/CFS and MS in our study is a history of recent infection prior to disease onset. Even recognising that our results are limited by the choice of factors we selected to investigate, our findings are consistent with the increasing body of evidence that has been published about the potential role of infections in the pathogenesis of ME/CFS, including common colds/flu.

scholarly journals Analytical epidemiology of multiple sclerosis in the Republic of Kabardino-Balkaria

2021 ◽  
Vol 13 (1S) ◽  
pp. 10-14
Author(s):  
L. B. Tlapshokova ◽  
A. R. Zikhova
Keyword(s):  
Risk Factors ◽  
Multiple Sclerosis ◽  
Environmental Factors ◽  
Scarlet Fever ◽  
Disease Onset ◽  
Clinical Manifestations ◽  
Control Group ◽  
Place Of Residence ◽  
History Of ◽  
The Republic

Multiple sclerosis (MS) is a common autoimmune disease, which etiology includes a complex of genetic and environmental factors. Data suggests that their interaction can influence the age of the clinical manifestations and the course of the disease. Therefore, the study of risk factors of MS in regions with different ethnic compositions of the population and climatic and geographical characteristics is of considerable interest.Objective: to study MS risk factors prevalence in the Republic of Kabardino-Balkaria (RKB).Patients and methods. This case-control study of the representation of risk factors included a cohort of 112 MS patients living in two regions of the RKB (Nalchik and the Prokhladnensky district). The MS diagnosis was established with the McDonald criteria (2017). MS risk factors were assessed with a unified questionnaire. 112 respondents (matched by the main demographic characteristics and place of residence) were included in the control group.Results and discussion. MS patients from the Prokhladnensky district were significantly more likely to contact harmful chemical compounds, had higher consumption of smoked meat products; and suffered from viral infections more often (all differences were significant, p<0.05). More patients with MS, regardless of their place of residence, had a history of scarlet fever than the controls (n=23; 19.5% and n=14; 13.4%, ratio indicator 0.43 (95% CI 0.32–1.01), p=0.041), and the maximum significance of this factor was found in patients who suffered from scarlet fever after the age of 15 years (n=7; 6.3% and n=1; 0.9%, ratio indicator 2.45 (95% CI 1.92–3.21), p=0.041). More patients with MS had a history of chickenpox (n=70; 62.5% and n=55; 41.1%; ratio indicator 0.78 (95% CI 0.65–0.94, p=0.032), the frequency of this factor was most significant in early (up to 7 years) disease onset. Regardless of the place of residence, patients with MS were more likely to suffer from tonsillitis and sinusitis in childhood (p=0.032).Conclusion. In the RKB, as in other regions of the Russian Federation, the risk of MS, along with a genetic predisposition, is primarily determined by environmental factors, such as contact with potentially harmful chemicals, history of somatic diseases, characteristics of the ecological situation, etc. Therefore, MS risk is higher in people exposed to these factors before the age of 7 years and does not depend on the place of residence. 

Abstract NS6: Family History of Stroke: Invisibility of a Key Stroke Risk Factor among High Risk African Americans

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Dawn M Aycock ◽  
Kenya D Kirkendoll ◽  
Kisha C Coleman ◽  
Karen C Albright ◽  
Anne W Alexandrov
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Family History ◽  
Perceived Control ◽  
Stroke Risk ◽  
Perceived Threat ◽  
Stroke Risk Factor ◽  
Stroke Risk Factors ◽  
History Of ◽  
Physiologic Data

Background & Purpose: Young to middle aged African Americans (AA) are at greater risk for a first-ever stroke, severe neurologic disability, and stroke-related mortality, than Caucasians of similar age; however, it remains unclear what role a family history of stroke (FHS) plays in promoting adoption of healthier lifestyles in this cohort. The purpose of this study was to explore differences between rural Stroke Belt AA with a FHS (e.g. parent/grandparent/sibling) on modifiable stroke risk factors, knowledge, perceived threat and perceived control of stroke, and exercise behaviors to AA without a FHS. Methods: A cross-sectional study was conducted recruiting AA aged 19-54 from the Black Belt region of Alabama via a mobile health clinic. Participants’ perceptions, knowledge, exercise history/intent, physiologic data, and health history were recorded. Results: Participants (N=66) averaged 43.3+9.4 years, were 71% female, with at least 12 years of school (89%), and unemployed (62%). Common risk factors were insufficient exercise (76%), obesity (59%), hypertension (53%; blood pressure M=145+17.6/88.3+12.9), and cigarette smoking (38%). Participants with a FHS (n=33) did not differ on average number of risk factors compared to those without a FHS (FHS 2.8+1.4 vs. 2.2+1.5; t(64)= 1.73, p=.089), nor did they differ on physiologic data. However, participants with a FHS were more likely to report a history of hypertension (67%) compared to those without a FHS (33%; χ2 =4.93, p <.05). There were no significant differences between groups for knowledge of stroke risk factors, perceived threat and perceived control of stroke, or recent exercise performance, although participants with a FHS (3.4+1.2) had significantly lower future intentions to exercise compared to those without a FHS (3.9+0.8); t(64)=2.45, p<.05). Conclusions: Although FHS is a significant non-modifiable risk factor for stroke and was common in this young to middle-aged AA cohort, FHS did not drive perceived stroke risk, risk factor control, or current/future intentions to exercise. Identification of interventions designed to personalize FHS as a key stroke risk factor, while promoting lifestyle change and self-management, may play an important role in future primary stroke prevention.

scholarly journals Prevalence of germline BRCA mutations in HER2-negative metastatic breast cancer: global results from the real-world, observational BREAKOUT study

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Joyce O’Shaughnessy ◽  
Christine Brezden-Masley ◽  
Marina Cazzaniga ◽  
Tapashi Dalvi ◽  
Graham Walker ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Ovarian Cancer ◽  
Risk Factor ◽  
Metastatic Breast Cancer ◽  
Family History ◽  
Metastatic Breast ◽  
Cytotoxic Chemotherapy ◽  
First Line ◽  
History Of

Abstract Background The global observational BREAKOUT study investigated germline BRCA mutation (gBRCAm) prevalence in a population of patients with human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer (MBC). Methods Eligible patients had initiated first-line cytotoxic chemotherapy for HER2-negative MBC within 90 days prior to enrollment. Hormone receptor (HR)-positive patients had experienced disease progression on or after prior endocrine therapy, or endocrine therapy was considered unsuitable. gBRCAm status was determined using baseline blood samples or prior germline test results. For patients with a negative gBRCAm test, archival tissue was tested for somatic BRCAm and homologous recombination repair mutations (HRRm). Details of first-line cytotoxic chemotherapy were also collected. Results Between March 2017 and April 2018, 384 patients from 14 countries were screened and consented to study enrollment; 341 patients were included in the full analysis set (median [range] age at enrollment: 56 [25–89] years; 256 (75.3%) postmenopausal). Overall, 33 patients (9.7%) had a gBRCAm (16 [4.7%] in gBRCA1 only, 12 [3.5%] in gBRCA2 only, and 5 [1.5%] in both gBRCA1 and gBRCA2). gBRCAm prevalence was similar in HR-positive and HR-negative patients. gBRCAm prevalence was 9.0% in European patients and 10.6% in Asian patients and was higher in patients aged ≤ 50 years at initial breast cancer (BC) diagnosis (12.9%) than patients aged > 50 years (5.4%). In patients with any risk factor for having a gBRCAm (family history of BC and/or ovarian cancer, aged ≤ 50 years at initial BC diagnosis, or triple-negative BC), prevalence was 10.4%, versus 5.8% in patients without these risk factors. HRRm prevalence was 14.1% (n = 9/64) in patients with germline BRCA wildtype. Conclusions Patient demographic and disease characteristics supported the association of a gBRCAm with younger age at initial BC diagnosis and family history of BC and/or ovarian cancer. gBRCAm prevalence in this cohort, not selected on the basis of risk factors for gBRCAm, was slightly higher than previous results suggested. gBRCAm prevalence among patients without a traditional risk factor for harboring a gBRCAm (5.8%) supports current guideline recommendations of routine gBRCAm testing in HER2-negative MBC, as these patients may benefit from poly(ADP-ribose) polymerase (PARP) inhibitor therapy. Trial registration NCT03078036.

Risk Factors for Silent Cerebral Infarcts in a Pediatric Sickle Cell Anemia (SCA) Cohort

Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 2487-2487 ◽  
Author(s):  
Francoise Bernaudin ◽  
Suzanne Verlhac ◽  
Annie Kamdem ◽  
Cécile Arnaud ◽  
Lena Coïc ◽  
...  
Keyword(s):  
Risk Factors ◽  
Logistic Regression ◽  
Regression Analysis ◽  
Risk Factor ◽  
Logistic Regression Analysis ◽  
G6pd Deficiency ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
History Of ◽  
Independent Risk Factors

Abstract Background Silent infarcts are associated with impaired cognitive functioning and have been shown to be predictors of stroke (Miller ST J Pediatr 2001). Until now, reported risk factors for silent infarcts were low pain event rate, history of seizures, high leukocyte count and Sen bS haplotype (Kinney TR Pediatrics 1999). Here, we seek to define the prevalence and risk factors of silent infarcts in the Créteil SCA pediatric cohort comprising patients assessed at least yearly by transcranial doppler (TCD) since 1992, and by MRI/MRA. Methods This study retrospectively analyzed data from the Créteil cohort stroke-free SS/Sb0 children (280; 134 F, 146 M), according to institutional review board. Time-averaged mean of maximum velocities higher than 200 cm/sec were considered as abnormal, resulting in initiation of a transfusion program (TP). A switch to hydroxyurea was proposed to patients with normalized velocities (&lt; 170 cm/sec) and normal MRA on TP, although TP was re-initiated in case of abnormal velocities recurrence. Patients with “conditional” velocities (170–199 cm/sec) were assessed by TCD 4 times yearly. Alpha genes and beta-globin haplotypes were determined. Baseline biological parameters (G6PD activity; WBC, PMN, Reticulocytes, Platelets counts; Hemoglobin, Hematocrit, HbF, LDH levels; MCV; SpO2) were obtained a minimum of 3 months away from a transfusion, one month from a painful episode, after 12 months of age, before the first TCD, and always before therapy intensification. Results. Patients were followed for a total of 2139 patient-years. Alpha-Thal was present in 114/254 patients (45%) and 27/241 (11.2%) had G6PD deficiency. Beta genotype, available in 240 patients, was BaBa in 102 (42.5%), BeBe in 54 (22.5%), SeSe in 19 (7.9%) and “other” in 65 (27.1%); TCD was abnormal in 52 of 280 patients (18.6%). MRA showed stenoses in 30 of 226 evaluated patients (13.3%) while MRI demonstrated presence of silent infarcts in 81/280 patients (28.9%). Abnormal TCD (p&lt;0.001), G6PD deficiency (p=0.008), high LDH (p=0.03), and low Hb (p=0.026) were significant risk factors for stenoses by univariate analysis while multivariate analysis retained only abnormal TCD as a significant risk factor for stenoses ([OR= 10.6, 95% CI (4.6–24.4)]; p&lt;0.001). Univariate logistic regression analysis showed that the risk of silent infarcts was not related to alpha-Thal, beta genotype, abnormal TCD, WBC, PMN, platelets, reticulocyte counts, MCV, LDH level, HbF %, pain or ACS rates but was significantly associated with stenoses detected by MRA (p&lt;0.001), gender (male; p=0.04), G6PD deficiency (p=0.05), low Hb (p=0.016) and Hct (p=0.012). Multivariate logistic regression analysis showed that gender ([OR= 2.1, 95% CI (1.03–4.27)]; p=0.042), low Hb ([OR= 1.4, 95% CI (1.0–1.1)]; p=0.05) and stenoses ([OR= 4.8, 95% CI (1.88–12.28)]; p=0.001) were all significant independent risk factors for silent infarcts. The presence of stenoses was the only significant risk factor for silent infarcts in patients with a history of abnormal TCD ([OR= 5.9, 95% CI (1.6–21.7)]; p=0.008). Conclusion We recently showed that G6PD deficiency, absence of alpha-Thal, and hemolysis are independent significant risk factors for abnormal TCD in stroke-free SCA patients (Bernaudin et al, Blood, 2008, in press). Here, we report that an abnormal TCD is the most significant risk factor for stenoses and, expanding previous studies, we demonstrate that stenoses, low Hb and gender are significant independent risk factors for silent infarcts.

scholarly journals Asthma and Keratoconus: An analysis of the risk factors association with the severity of keratoconus

2020 ◽  
Author(s):  
Srujana Sahebjada ◽  
Elsie Chan ◽  
Jing Xie ◽  
Grant Snibson ◽  
Mark Daniel ◽  
...  
Keyword(s):  
Risk Factors ◽  
Regression Analysis ◽  
Risk Factor ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
Educational Background ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Wide Range ◽  
Multivariable Regression

Abstract Background: A cross-sectional study was undertaken in Australia to explore a wide range of risk factors associated with keratoconus. A questionnaire addressing age, gender, educational background, ocular and medical history, smoking and alcohol consumption, and physical examination comprising anthropometric measurements was collected; eye examination was undertaken. The associations between a range of risk factors and keratoconus was determined using univariate and multivariable linear regression analyses.Main Text: A total of 260 keratoconus subjects were included in this study. Mean age of subject was 35.5 (SD= 14.8) years and the majority of the subjects were European 171 (68.2%). Initial univariate regression analysis identified the following risk factors at the p<0.1 level with keratoconus: higher body mass index, smoking cigarettes, diabetes, rheumatoid arthritis and asthma were associated with increased severity of keratoconus, whereas eczema was associated with less severe keratoconus. Following multivariable regression analysis, only asthma remained as a significant risk factor associated with 2.2 diopters (D) steeper average mean keratometry compared to keratoconus subjects having no asthma [p = 0.03; β= 2.18; 95% confidence intervals: 1.22, 4.14].Conclusion: Our study describes the comprehensive assessment of all the known risk factors in a large keratoconus cohort recruited in Australia. Our study has reported asthma as the only risk factor found to be significantly associated with keratoconus. The results of this study allow us to better understand the aetiology of keratoconus and such a knowledge could be useful in instigate systemic management of patients to slow or prevent keratoconus.

scholarly journals Screening of Hemoglobin A1c in Gestational Diabetes among women attending metabolic clinic at a tertiary care hospital in Uttar Pradesh

2019 ◽  
Vol 10 (2) ◽  
pp. 26-30
Author(s):  
Vivek Sinha ◽  
Poonam Kachhawa
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Risk Factor ◽  
Family History ◽  
Gestational Diabetes ◽  
Gestational Diabetes Mellitus ◽  
Pregnant Women ◽  
P Value ◽  
Close Monitoring ◽  
History Of

Background: Gestational diabetes mellitus (GDM) is a common medical condition that complicates pregnancies..Gestational diabetes mellitus (GDM) is a diabetic metabolic disorder that occurs in 4% of all pregnant women and 14% of ethnic groups with more prevalence of type II diabetes. It can be defined as increased or abnormal insulin resistance, decreased insulin sensitivity or glucose intolerance with first diagnosis during pregnancy. Aims and Objectives: The purpose of this study was to evaluate the diagnostic screening value of the HbA1c, prevalence of GDM and associated risk factors. Materials and Methods: The study was conducted at the metabolic clinic; in the department of Biochemistry located at SIMS, Hapur. A semi-structured pretested questionnaire was used for data collection. Following the DIPSI guidelines, patients with plasma glucose values >140 mg/dl were labeled as GDM. Statistical methods used were OR (CI95%), percentage, Chi square. Results: Out of 500, 6.72% had GDM. Among all GDM patients, 64.71% had age more than 30 years, 70.59% had BMI more than 25, 41.18% had gravida more than 3 and p- value was significant with regard to age and BMI. P value was found to be significant for risk factors namely positive family history of Diabetes Mellitus, history of big baby and presence of more than one risk factor. Conclusion: GDM is associated with high BMI, early pregnancy loss, family history of DM and previous history of big baby and there could be more than one risk factor. Thus universal screening followed by close monitoring of the pregnant women for early detection of GDM may help improving maternal and fetal outcomes.

Association of second primary malignancies with past and family history of malignancy in patients with small cell lung cancer.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e17526-e17526
Author(s):  
Keisuke Kirita ◽  
Koichi Goto ◽  
Shigeki Umemura ◽  
Kiyotaka Yoh ◽  
Seiji Niho ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Family History ◽  
Malignant Disease ◽  
Past History ◽  
Significant Risk ◽  
Second Primary ◽  
Thoracic Cancer ◽  
History Of ◽  
Second Primary Malignancies

e17526 Background: Based on recent development in the treatment for small cell lung cancer (SCLC) such as chemotherapy and radiotherapy, long-term survivors are frequently observed. Meanwhile, etoposide and radiotherapy, which are key treatments for SCLC, are also known as methods to set up late complication including carcinogenicity. There have been few reports of second primary malignancies (SPM) in patients with SCLC, and risk factor for SPM has not become evident other than smoking continuation. Methods: From July 1992 to December 2009, 900 patients with SCLC were treated in National Cancer Center Hospital East. Medical records of all patients were retrospectively reviewed, and the incidence and risk factor for SPM were investigated. Results: Demographics of all patients with SCLC were as follows: Male/Female, 738/162; median age, 66 years (range 22-87); smoking pack-year (PY) <30/30≤, 155/745; Limited/Extensive, 468/432. Median follow up time was 4.5 years. Three and 5-year overall survival rate were 16.4% and 11.6%, respectively. Twenty-seven patients (3.0%) developed SPM, 15 patients (54%) of whom died due to SPM. Thoracic cancer occupied 52% of them (lung, 11; trachea, 1; esophagus, 4; breast, 1). Three and 5-year cumulative incidence rate (CIR) of SPM were 2.5% and 11.8%. Although there was no significant risk factor for SPM, the groups having past history of malignant disease and heavy smoker (PY ≥30) tended to develop SPM (p=0.11and 0.07). Using etoposide containing regimen and thoracic irradiation were not significant risk factors for the incidence of SPM (p=0.84 and 0.24). Neither serum level of CEA, NSE nor ProGRP were risk factors of incidence of SPM (p=0.51, 0.09 and 0.21). Within over 2-year survivors, there was a significant correlation between family history of cancer within first-degree relatives and CIR of SPM (p<0.01). Conclusions: Five years CIR of SPM was 11.6%, and secondary thoracic cancer accounted for large portion of them. It was concluded that cumulative smoking amount, past history of malignant disease, and positive family history of cancer within first-degree relatives were risk factors for SPM.

Hyperlipidemia Screening Is Worthwhile

PEDIATRICS ◽  
1980 ◽  
Vol 65 (3) ◽  
pp. 674-674
Author(s):  
Peter C. Freis
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Risk Factor ◽  
Family History ◽  
Pediatric Patients ◽  
Coronary Risk Factors ◽  
Coronary Risk ◽  
Primary Physician ◽  
Premature Cardiovascular Disease ◽  
History Of

Neil A. Holtzman, MD (Hyperlipidemia screening: A search for heffalumps. Pediatrics 64:270, 1979) writes persuasively discouraging hypercholesterolemia screening and therapy in childhood. His commentary would easily dissuade the primary physician from appropriate intervention on his pediatric patients' behalf to minimize every coronary risk factor. The author unfortunately pays little attention to the children who would benefit most from hypercholesterol screening, those with a family history of premature cardiovascular disease. This is misleading. We must redirect our thinking to a continued effort to seek and minimize more appropriately coronary risk factors.

scholarly journals Chronic diseases of lifestyle risk factor profiles of a South African rural community

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mukadas O. Akindele ◽  
Ushotanefe Useh
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Family History ◽  
Chronic Diseases ◽  
Rural Community ◽  
Physical Inactivity ◽  
Sedentary Lifestyle ◽  
Disease Risk ◽  
Survey Design ◽  
History Of

Globally, chronic diseases of lifestyle account for millions of dollars spent annually on health. These diseases share similar risk factors including: physical inactivity, obesity, cigarette smoking, and hypertension among others. This study sought to assess risk factors for chronic diseases of lifestyle of a rural community in South Africa. This study used a survey design with data randomly collected using the WHO STEPS Instrument for Chronic Disease Risk Factor Surveillance from participants who attended routine checks from February to October 2018 from a trained healthcare practitioner. Informed consent was sought from all participants before the administration of the instrument. The research setting was the community Primary Health Center. About 54.0% of participants presented with no family history of hypertension but 19.7% had a family history of type II diabetes mellitus. More women were found to be hypertensive, with the majority (93.4%) monitoring their blood pressure. The study revealed that more men were current smokers. A large number of participants were engaged in a sedentary lifestyle with about one-third of the participants reported being obese. Physical inactivity, sedentary lifestyle, and hypertension were among the lifestyle-related risk factors for chronic diseases among residents of this rural community.

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