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Nested case-control study

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https://www.readbyqxmd.com/read/28799289/prenatal-exposure-to-fever-is-associated-with-autism-spectrum-disorder-in-the-boston-birth-cohort
#1
Martha Brucato, Christine Ladd-Acosta, Mengying Li, Deanna Caruso, Xiumei Hong, Jamie Kaczaniuk, Elizabeth A Stuart, M Daniele Fallin, Xiaobin Wang
Autism spectrum disorder (ASD) is phenotypically and etiologically heterogeneous, with evidence for genetic and environmental contributions to disease risk. Research has focused on the prenatal period as a time where environmental exposures are likely to influence risk for ASD. Epidemiological studies have shown significant associations between prenatal exposure to maternal immune activation (MIA), caused by infections and fever, and ASD. However, due to differences in study design and exposure measurements no consistent patterns have emerged revealing specific times or type of MIA exposure that are most important to ASD risk...
August 11, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28797750/ykl-40-is-a-novel-biomarker-for-predicting-hypertension-incidence-among-prehypertensive-subjects-a-population-based-nested-case-control-study-in-china
#2
Tian Xu, Chongke Zhong, Aili Wang, Zhirong Guo, Xiaoqing Bu, Yipeng Zhou, Yunfan Tian, Xinfeng Huang Fu, Zhengbao Zhu, Yonghong Zhang
BACKGROUND AND AIMS: The previous study suggested that Human cartilage glycoprotein-39 (YKL-40) was positively associated with hypertension incidence in certain high-risk groups of hypertension. We aimed to investigate that whether YKL-40 is an effective biomarker for predicting hypertension incidence among prehypertensive subjects. METHODS: In a 1:1 matched case-control study of 700 pairs with available YKL-40 levels nested in a prospective cohort of initially healthy Chinese subjects, 294 pairs additionally have matched baseline BP status (prehypertensive or normotensive)...
August 7, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28797185/association-of-maternal-serum-homocysteine-concentration-levels-in-late-stage-of-pregnancy-with-preterm-births-a-nested-case-control-study
#3
Xiantao Qiu, Fei Gao, Yuanyuan Qiu, Junjie Bao, Xiaoqiong Gu, Yan Long, Fei Liu, Minmin Cai, Haiying Liu
PURPOSE: To investigate the relationship between maternal serum homocysteine (Hcy) levels in the late stage of pregnancy and preterm birth. Other relevant biochemical parameters were measured to establish the normal reference interval of serum Hcy in both women in the late stage of pregnancy and neonates. MATERIALS AND METHODS: The nested case-control study included 300 singleton pregnant women with preterm births between June 2013 and May 2015 and their premature delivered babies as a preterm group...
August 11, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28796009/different-exposures-to-risk-factors-do-not-explain-the-inverse-relationship-of-occurrence-between-cancer-and-neurodegenerative-diseases-an-italian-nested-case-control-study
#4
Federica Prinelli, Fulvio Adorni, Maria Lea Correa Leite, Carla Pettenati, Antonio Russo, Simona Di Santo, Massimo Musicco
Several studies reported that cancer is less frequent in persons with Alzheimer's and Parkinson's Diseases (AD/PD) and vice-versa. We evaluated whether a different distribution of known nongenetic risk factors for cancer and AD/PD, might explain their inverse relationship of occurrence. We nested 2 case-control studies in a subsample of a large cohort of 1,000,000 resident in Lombardy Region in Italy (n=1515), followed-up for cancer and AD/PD occurrence since 1991 until 2012. Conditional logistic regression was performed to determine the odds ratios (OR) and 95% confidence intervals (CI) of AD/PD in subjects with and without cancer and the risk of cancer in those with and without AD/PD...
August 8, 2017: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/28791495/joint-relative-risks-for-estrogen-receptor-positive-breast-cancer-from-a-clinical-model-polygenic-risk-score-and-sex-hormones
#5
Yiwey Shieh, Donglei Hu, Lin Ma, Scott Huntsman, Charlotte C Gard, Jessica W T Leung, Jeffrey A Tice, Elad Ziv, Karla Kerlikowske, Steven R Cummings
BACKGROUND: Models that predict the risk of estrogen receptor (ER)-positive breast cancers may improve our ability to target chemoprevention. We investigated the contributions of sex hormones to the discrimination of the Breast Cancer Surveillance Consortium (BCSC) risk model and a polygenic risk score comprised of 83 single nucleotide polymorphisms. METHODS: We conducted a nested case-control study of 110 women with ER-positive breast cancers and 214 matched controls within a mammography screening cohort...
August 8, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28782528/the-use-of-benzodiazepine-receptor-agonists-and-the-risk-of-pneumonia-hospitalization-a-nationwide-population-based-nested-case-control-study
#6
Tien-Yu Chen, John W Winkelman, Wei-Chung Mao, Chia-Lin Liu, Chung-Yao Hsu, Chi-Shin Wu
BACKGROUND: The relationship between the use of benzodiazepine receptor agonists (BZRAs) and the risk of pneumonia hospitalization remains inconclusive. This study aimed to explore the association between BZRA use and pneumonia hospitalization in a general population. METHODS: This population-based, nested case-control study used Taiwan's National Health Insurance Research Database between 2002 and 2012. We only included new users who did not have any BZRA prescriptions on record in the preceding two years and identified 12,002 subjects with pneumonia hospitalization (ICD-9 codes: 480-486) and 12,002 disease risk score matched controls...
August 4, 2017: Chest
https://www.readbyqxmd.com/read/28782073/predictors-of-treatment-warranted-retinopathy-of-prematurity-in-the-sundrop-cohort-influence-of-photographic-features
#7
Cassie A Ludwig, Margaret A Greven, Darius M Moshfeghi
PURPOSE: The Stanford University Network for the Diagnosis of Retinopathy of Prematurity (SUNDROP) initiative-an ongoing telemedicine-based initiative for in-hospital screening of high-risk infants for treatment-warranted ROP (TW-ROP)-has been shown to be a safe, reliable, and cost-effective supplement to the efforts of ROP specialists. We utilized data collected in the SUNDROP initiative to determine demographic (birth weight, sex, multiplicity), weight gain, and ocular imaging (media haze, peripapillary atrophy, fundus pigmentation) predictors of TW-ROP...
August 7, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28781924/cerebral-microhemorrhage-a-frequent-magnetic-resonance-imaging-finding-in-pediatric-patients-after-cardiopulmonary-bypass
#8
Paggie P C Kim, Benjamin W Nasman, Erica L Kinne, Udochukwu E Oyoyo, Daniel K Kido, J P Jacobson
OBJECTIVES: This study was undertaken to estimate the incidence and burden of cerebral microhemorrhage (CM) in patients with heart disease who underwent cardiopulmonary bypass (CPB), as detected on susceptibility-weighted imaging (SWI), a magnetic resonance (MR) sequence that is highly sensitive to hemorrhagic products. MATERIALS AND METHODS: With Institutional Review Board waiver of consent, MR imaging (MRI) of a cohort of 86 consecutive pediatric patients with heart failure who underwent heart transplantation evaluation were retrospectively reviewed for CM...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28779444/angioedema-among-hypertensive-patients-treated-with-aliskiren-or-other-antihypertensive-medications-in-the-united-states
#9
Raymond G Schlienger, Jonathan R Korn, Elizabeth Wehler, Sandra Lopez Leon, Jason Yeaw
BACKGROUND: A non-interventional study suggested that use of angiotensin-converting enzyme inhibitors (ACEIs) or aliskiren was associated with an angioedema risk three times that of beta-blockers (BBs). OBJECTIVE: The aim was to assess angioedema incidence rates (IRs) and the relative angioedema risk of aliskiren compared to other antihypertensive drugs (AHDs). METHODS: A cohort study in hypertensive patients with an AHD prescription between 2007 and 2012 was conducted using data from the US PharMetrics Plus™ claims database...
August 4, 2017: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
https://www.readbyqxmd.com/read/28779032/utility-of-gene-methylation-analysis-cytological-examination-and-hpv-16-18-genotyping-in-triage-of-high-risk-human-papilloma-virus-positive-women
#10
Yan Tian, Na-Yi Yuan Wu, Yu-Ligh Liou, Ching-Tung Yeh, Lanqin Cao, Ya-Nan Kang, Huei-Jen Wang, Yichen Li, Tang-Yuan Chu, Wei Li, Xiang Liu, Yi Zhang, Honghao Zhou, Yu Zhang
In 2015, the American Society for Colposcopy and Cervical Pathology and the Society of Gynecologic Oncology issued interim guidance for the use of a human papillomavirus (HPV) test for primary screening, suggesting triage of women positive for high-risk human papillomavirus (hrHPV) by HPV-16/18 genotyping and cytology for women positive for non-16/18 hrHPV. The design of the present study was based on this interim guidance and analysis of the methylation status of specific candidate genes, which has been proposed as a tool to reduce unnecessary referral following primary HPV screening for cervical cancer...
July 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28778370/plasma-phytoestrogens-concentration-and-risk-of-colorectal-cancer-in-two-different-asian-populations
#11
Kwang-Pil Ko, Yohwan Yeo, Ji-Hye Yoon, Cheong-Sik Kim, Shinkan Tokudome, Le Tran Ngoan, Chihaya Koriyama, Young-Khi Lim, Soung-Hoon Chang, Hai-Rim Shin, Daehee Kang, Sue K Park, Chul Hwan Kang, Keun-Young Yoo
BACKGROUND & AIMS: To evaluate the relationship between phytoestrogen and colon cancer risk, we quantified plasma isoflavones (Genistein and Daidzein) and lignan (enterolactone) in a Korean nested case-control study and conducted replication study in a Vietnamese case-control study. METHODS: Study populations of 101 cases and 391 controls were selected from the Korean Multicenter Cancer Cohort which was constructed from 1993 to 2004. For replication study, Vietnamese hospital-based case-control subjects of 222 cases and 206 controls were selected from 2003 to 2007...
July 18, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28770441/association-of-dd-genotype-of-angiotensin-converting-enzyme-gene-i-d-polymorphism-with-hypertension-among-a-north-indian-population
#12
Garima Rana, Suniti Yadav, Shipra Joshi, K N Saraswathy
Hypertension, a major risk factor for cardiovascular diseases, is among the leading causes of morbidity and mortality worldwide. Genetic predisposition to the risk of developing hypertension due to angiotensin-converting enzyme (ACE) gene insertion(I)/deletion(D) polymorphism (through altered serum ACE activity) is well documented among various populations. The present study investigated the possible association between ACE (DD) genotype and hypertension using a nested case-control study design including 451 individuals (of either sex in the age group 30-65 years) from a rural North Indian population practicing agriculture and lacto-vegetarianism...
August 2, 2017: Journal of Community Genetics
https://www.readbyqxmd.com/read/28767208/lithium-use-but-not-valproate-use-is-associated-with-a-higher-risk-of-chronic-kidney-disease-in-older-adults-with-mental-illness
#13
Soham Rej, Nathan Herrmann, Kenneth Shulman, Hadas D Fischer, Kinwah Fung, Ziv Harel, Andrea Gruneir
OBJECTIVE: Lithium is an essential mood disorder treatment; however, it remains unclear whether lithium increases chronic kidney disease (CKD) risk. There are few data on this in the elderly, even though older adults may be particularly susceptible to CKD. We wished to determine whether lithium is associated with increased CKD risk relative to valproate in older adults. METHODS: This nested case-control study analyzed province-wide administrative health data from mental health service users aged ≥ 66 years in Ontario, Canada, from 2003 to 2014...
August 1, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28766691/risk-factors-for-peripheral-nerve-injuries-following-neuraxial-labour-analgesia-a-nested-case-control-study
#14
G Haller, I Pichon, F-O Gay, G Savoldelli
BACKGROUND: Post-partum lower extremity motor and sensory dysfunctions occur in 0.1-9.2‰ of deliveries. While macrosomia, lithotomy position and forceps use are well-identified causes of peripheral nerve injuries, additional contributors such as patient condition and anaesthesia care may also have to be considered. METHODS: We performed a case-control study nested in a cohort of 19,840 patients having neuraxial anaesthesia for childbirth. Cases were all patients who developed motor or sensory dysfunction of lower extremities in the post-partum period...
August 2, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28766108/a-pharmacoepidemiology-database-system-for-monitoring-risk-due-to-the-use-of-medicines-by-new-zealand-primary-care-patients
#15
Andrew M Tomlin, David M Reith, David J Woods, Hywel S Lloyd, Alesha Smith, John S Fountain, Murray W Tilyard
INTRODUCTION: The use of large record-linked healthcare databases for drug safety research and surveillance is now accepted practice. New Zealand's standardized national healthcare datasets provide the potential to automate the conduct of pharmacoepidemiological studies to provide rapid validation of medicine safety signals. OBJECTIVES: Our objectives were to describe the methodology undertaken by a semi-automated computer system developed to rapidly assess risk due to drug exposure in New Zealand's population of primary care patients and to compare results from three studies with previously published findings...
August 1, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28764171/evaluation-of-hypoxia-inducible-factor-1%C3%AE-and-glucose-transporter-1-expression-in-non-melanoma-skin-cancer-an-immunohistochemical-study
#16
Iman Seleit, Ola Ahmed Bakry, Dalia Rifaat Al-Sharaky, Rania Abdel Aziz Ragab, Shimaa Ahmed Al-Shiemy
INTRODUCTION: Hypoxia Inducible Factor-1 (HIF-1) is a mediator enabling cell adaptation to hypoxia. It plays its role mainly through transcription of many target genes including Glucose Transporter-1 (GLUT-1) gene. AIM: The present work aimed at evaluating the pattern and distribution of HIF-1α and GLUT-1 in each case and control. MATERIALS AND METHODS: A case-control and retrospective study was conducted on archival blocks diagnosed from pathology department as, Basal Cell Carcinoma (BCC, 20 cases), cutaneous Squamous Cell Carcinoma (SCC, 20 cases) and 20 normal site-matched skin biopsies from age and gender-matched healthy subjects as a control...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28763566/metabolites-and-microbial-composition-of-stool-of-women-with-fecal-incontinence-study-design-and-methods
#17
Lily A Arya, Holly E Richter, Eric Jelovsek, Marie Gantz, Sara Cichowski, Halina Zyczynski, Keisha Dyer, Nazema Siddiqui, Cassandra Carberry, Corey Broeckling, Casey Morrow, Purna Kashyap, Susie Meikle
AIMS: This paper aims to report the rationale, design, and the specific methodology of an ongoing nested observational study that will determine the association of the metabolite and microbial composition of stool with fecal incontinence (FI). METHODS: Eligible cases are participants with FI enrolled in the Controlling Anal Incontinence in women by Performing Anal Exercises with Biofeedback or Loperamide (CAPABLe) trial, a Pelvic Floor Disorders Network trial across eight clinical centers in the United States...
August 1, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28763425/frequency-of-acute-otitis-media-in-children-under-24-months-of-age-before-and-after-the-introduction-of-the-10-valent-pneumococcal-conjugate-vaccine-into-the-national-immunization-program-in-chile
#18
Andrés Rosenblut, Macarena Rosenblut, Karen García, Ximena Maul
BACKGROUND: Streptococcus pneumoniae is the leading cause of acute otitis media (AOM). Pneumococcal non-typable Haemophilus influenzae Protein D Conjugate Vaccine (PCV-10) was introduced to the Chilean national immunization program (NIP) in 2011. The aim of this study was to estimate the frequency of AOM in children < 24 months of age attending the Emergency Department (ED) of Hospital Sótero del Río (HSR) 4 years before and 4 years after the introduction of PCV-10 in the Chilean NIP...
July 31, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28759627/increased-risk-of-dental-trauma-in-patients-with-allergic-rhinitis-a-nationwide-population-based-cohort-study
#19
Ming-Jhih Siao, Gunng-Shinng Chen, Wei-Cheng Lee, Jorng-Tzong Horng, Cheng-Wei Chang, Chung-Hsing Li
Allergic rhinitis (AR) is associated with various developmental issues that affecting dentition. We aimed to determine whether AR is associated with an increased risk of traumatic dental injuries (TDIs) in Taiwanese individuals. We used the Taiwan National Health Insurance Research Database (NHIRD) to conduct a nested case-control study. We compared an AR cohort with a matched cohort of patients without AR. New TDI cases were determined during our study period. To compare TDI risk between our study cohorts, we used Cox proportional regression analysis, and hazard ratios (HR) with 95% confidence intervals (CI) were calculated to quantify the association between AR exposure and TDI risk...
2017: PloS One
https://www.readbyqxmd.com/read/28758405/blood-metabolic-signatures-of-body-mass-index-a-targeted-metabolomics-study-in-the-epic-cohort
#20
Marion Carayol, Michael F Leitzmann, Pietro Ferrari, Raul Zamora-Ros, David Achaintre, Magdalena Stepien, Julie A Schmidt, Ruth C Travis, Kim Overvad, Anne Tjønneland, Louise Hansen, Rudolf Kaaks, Tilman Kühn, Heiner Boeing, Ursula Bachlechner, Antonia Trichopoulou, Christina Bamia, Domenico Palli, Claudia Agnoli, Rosario Tumino, Paolo Vineis, Salvatore Panico, J Ramón Quirós, Emilio Sanchez-Cantalejo, José María Huerta, Eva Ardanaz, Larraitz Arriola, Antonio Agudo, Jan Nilsson, Olle Melander, Bas Bueno-de-Mesquita, Petra H Peeters, Nick Wareham, Kay-Tee Khaw, Mazda Jenab, Timothy J Key, Augustin Scalbert, Sabina Rinaldi
OBJECTIVE: Metabolomic is now widely used to characterize metabolic phenotypes associated with lifestyle risk factors such as obesity. The objective of the present study was to explore the associations of body mass index (BMI) with 145 metabolites measured in blood samples in the European Prospective Investigation into Cancer and Nutrition (EPIC) study. METHODS: Metabolites were measured in blood from 392 men from the Oxford (UK) cohort (EPIC-Oxford) and in 327 control subjects who were part of a nested case-control study on hepatobiliary carcinomas (EPIC-Hepatobiliary)...
July 31, 2017: Journal of Proteome Research
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