keyword
MENU ▼
Read by QxMD icon Read
search

Nested case-control study

keyword
https://www.readbyqxmd.com/read/28096201/serum-c-peptide-total-and-high-molecular-weight-adiponectin-and-pancreatic-cancer-do-associations-differ-by-smoking
#1
Leticia M Nogueira, Christina C Newton, Michael N Pollak, Debra T Silverman, Demetrius Albanes, Satu Männistö, Stephanie J Weinstein, Eric J Jacobs, Rachael Z Stolzenberg-Solomon
BACKGROUND: Studies examining associations between circulating concentrations of C-peptide and total adiponectin, two biomarkers related to obesity and insulin secretion and sensitivity and pancreatic ductal adenocarcinoma (PDA) risk have shown inconsistent results and included limited numbers of smokers. METHODS: We examined associations of these biomarkers and high molecular weight (HMW) adiponectin with PDA, overall, and by smoking status. We conducted a pooled nested case-control analysis in 3 cohorts (Prostate, Lung, Colorectal, and Ovarian Cancer Trial, Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study, and Cancer Prevention Study-II), with 758 cases (435 current smokers) and 1052 controls (531 smokers) matched by cohort, age, sex, race, blood draw date and follow-up time...
January 17, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28093195/health-and-functioning-of-adolescents-conceived-by-assisted-reproductive-technology
#2
Eyal Fruchter, Ronit Beck-Fruchter, Ariel Hourvitz, Mark Weiser, Shira Goldberg, Daphna Fenchel, Liat Lerner-Geva
OBJECTIVE: To evaluate the general health, mental health, and cognitive ability of assisted reproductive technology (ART)-conceived adolescents. DESIGN: A nested case-control study within a historic cohort. SETTING: Not applicable. PATIENT(S): A total of 253 ART-conceived adolescents born between 1982 and 1993 and 253 matched references according to birth year, gender, and the high-school they attended. INTERVENTION(S): None...
January 5, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28087989/alcohol-consumption-and-gastric-cancer-risk-a-meta-analysis
#3
Ke Ma, Zulqarnain Baloch, Ting-Ting He, Xueshan Xia
BACKGROUND We sought to determine by meta-analysis the relationship between drinking alcohol and the risk of gastric cancer. MATERIAL AND METHODS A systematic Medline search was performed to identify all published reports of drinking alcohol and the associated risk of gastric cancer. Initially we retrieved 2,494 studies, but after applying inclusion and exclusion criteria, only ten studies were found to be eligible for our meta-analysis. RESULTS Our meta-analysis showed that alcohol consumption elevated the risk of gastric cancer with an odds ratio (OR) of 1...
January 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28081538/testing-breast-cancer-serum-biomarkers-for-early-detection-and-prognosis-in-pre-diagnosis-samples
#4
Anna Kazarian, Oleg Blyuss, Gergana Metodieva, Aleksandra Gentry-Maharaj, Andy Ryan, Elena M Kiseleva, Olga M Prytomanova, Ian J Jacobs, Martin Widschwendter, Usha Menon, John F Timms
BACKGROUND: Breast cancer is a leading cause of morbidity and mortality worldwide. Although mammography screening is available, there is an ongoing interest in improved early detection and prognosis. Herein, we have analysed a combination of serological biomarkers in a case-control cohort of sera taken before diagnosis. METHODS: This nested case-control study within the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS) used serum samples from 239 women who subsequently developed breast cancer and 239 matched cancer-free controls...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28079511/circulating-carotenoids-and-subsequent-risk-of-rheumatoid-arthritis-in-women
#5
Yang Hu, Jing Cui, Jeffrey A Sparks, Susan Malspeis, Karen H Costenbader, Elizabeth W Karlson, Bing Lu
OBJECTIVES: The aim of the present study was to examine the associations between circulating carotenoids and future risk of rheumatoid arthritis (RA). METHODS: We conducted a nested case-control study consisting of 227 incident RA cases and 671 matched controls with prospectively measured plasma carotenoids (α-carotene, β-carotene, β-cryptoxanthin, lycopene and lutein/zeaxanthin) levels in the Nurses' Health Study (NHS) and Nurses' Health Study II (NHS II). Each incident RA case was matched with 3 healthy controls...
January 4, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28077427/serum-trimethylamine-n-oxide-carnitine-choline-and-betaine-in-relation-to-colorectal-cancer-risk-in-the-alpha-tocopherol-and-beta-carotene-study
#6
Kristin A Guertin, Xinmin S Li, Barry I Graubard, Demetrius Albanes, Stephanie J Weinstein, James J Goedert, Zeneng Wang, Stanley L Hazen, Rashmi Sinha
BACKGROUND: TMAO, a choline-derived metabolite produced by gut microbiota, and its biomarker precursors have not been adequately evaluated in relation to colorectal cancer risk. METHODS: We investigated the relationship between serum concentrations of TMAO and its biomarker precursors (choline, carnitine and betaine) and incident colorectal cancer risk in a nested case-control study of male smokers in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study...
January 11, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28075490/soluble-transferrin-receptor-and-risk-of-type-2-diabetes-in-the-obese-and-non-obese
#7
Jose C Fernández-Cao, Victoria Arija, Núria Aranda, Josep Basora, Javier Diez-Espino, Ramón Estruch, Montse Fitó, Dolores Corella D Pharm, Jordi Salas-Salvadó
BACKGROUND: Studies evaluating the relationship between soluble transferrin receptor (sTfR), a biomarker inversely related to body iron stores, and risk of type 2 diabetes mellitus (T2DM) are scarce and inconclusive. Furthermore, sTfR concentrations have been observed to be significantly higher in obese than in non-obese individuals. Therefore, the aim of the present study was to assess the relationship between sTfR and the risk of T2DM in obese and non-obese subjects. DESIGN: A nested case-control study of 153 cases of newly diagnosed diabetic subjects, 73 obese and 80 non-obese, and 306 individually matched-controls, 138 obese and 166 non-obese, who did not develop T2DM for a median 6-year follow-up (interquartile range: 3...
January 11, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28073985/population-based-pertussis-incidence-and-risk-factors-in-infants-less-than-6-months-in-nepal
#8
Michelle M Hughes, Janet A Englund, Jane Kuypers, James M Tielsch, Subarna K Khatry, Laxman Shrestha, Steven C LeClerq, Mark Steinhoff, Joanne Katz
BACKGROUND: Pertussis is estimated to cause 2 percent of childhood deaths globally and is a growing public health problem in developed countries despite high vaccination coverage. Infants are at greatest risk of morbidity and mortality. Maternal vaccination during pregnancy may be effective to prevent pertussis in young infants, but population-based estimates of disease burden in infants are lacking, particularly in low-income countries. The objective of this study was to estimate the incidence of pertussis in infants less than 6 months of age in Sarlahi District, Nepal...
January 10, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28073863/revisiting-sex-differences-in-outcomes-in-non-valvular-atrial-fibrillation-a-population-based-cohort-study
#9
Christel Renoux, Janie Coulombe, Samy Suissa
AIMS: In patients with non-valvular atrial fibrillation (NVAF), it is uncertain whether the higher risk of ischaemic stroke in women reported in some studies is due to residual confounding. We assessed this association using standard time-fixed and more accurate time-dependent adjustment for confounders. METHODS AND RESULTS: Using the computerized databases of the Régie de l'assurance maladie du Québec (RAMQ), we identified a cohort of patients with NVAF during 2000-2009 and RAMQ medication coverage...
January 10, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28070615/detection-of-enteroviruses-in-stools-precedes-islet-autoimmunity-by-several-months-possible-evidence-for-slowly-operating-mechanisms-in-virus-induced-autoimmunity
#10
Hanna Honkanen, Sami Oikarinen, Noora Nurminen, Olli H Laitinen, Heini Huhtala, Jussi Lehtonen, Tanja Ruokoranta, Minna M Hankaniemi, Valérie Lecouturier, Jeffrey W Almond, Sisko Tauriainen, Olli Simell, Jorma Ilonen, Riitta Veijola, Hanna Viskari, Mikael Knip, Heikki Hyöty
AIMS/HYPOTHESIS: This case-control study was nested in a prospective birth cohort to evaluate whether the presence of enteroviruses in stools was associated with the appearance of islet autoimmunity in the Type 1 Diabetes Prediction and Prevention study in Finland. METHODS: Altogether, 1673 longitudinal stool samples from 129 case children who turned positive for multiple islet autoantibodies and 3108 stool samples from 282 matched control children were screened for the presence of enterovirus RNA using RT-PCR...
January 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/28062400/the-association-between-age-related-macular-degeneration-and-renal-cell-carcinoma-a-nested-case-control-study
#11
Daniel Keizman, Yu-Xiao Yang, Maya Gottfried, Hadas Dresler, Ilan Leibovitch, Kevin Haynes, Ronac Mamtani, Ben Boursi
BACKGROUND: Overexpression of vascular endothelial growth factor is implicated in the pathogenesis of both renal cell carcinoma (RCC) and age-related macular degeneration (AMD). We evaluated the association between age-related macular degeneration and RCC risk. METHODS: We conducted a matched case-control study within a population-representative database from the United Kingdom (UK). Study cases were defined as individuals with any diagnostic code of RCC. For every case, four eligible controls were matched on age, sex, practice site, calendar time and duration of follow-up...
January 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28062022/diabetic-pharmacotherapy-and-endometrial-cancer-risk-within-a-publicly-funded-health-care-system
#12
Janice S Kwon, Arianne Y K Albert, Sabrina Gill, Jennifer A Hutcheon
OBJECTIVE: There is conflicting evidence regarding the association between metformin and endometrial cancer risk. The objective of this study was to evaluate the association between type of diabetic pharmacotherapy and endometrial cancer risk within a population-based study. The hypothesis was that metformin was associated with the lowest risk. METHODS: This was a nested case-control study using data from the BC Cancer Registry (2000-2009) and from a province-wide prescription network (PharmaNet) since 1996...
January 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28061874/slc11a1-polymorphisms-and-host-susceptibility-to-cutaneous-leishmaniasis-in-pakistan
#13
Mariam Sophie, Abdul Hameed, Akhtar Muneer, Azam J Samdani, Saima Saleem, Abid Azhar
BACKGROUND: The vector-borne cutaneous leishmaniasis (CL) is endemic in several regions of Pakistan mainly affecting poor populations. Host genetic factors, particularly SLC11A1 (solute carrier transmembrane protein) within macrophages, play a crucial role in disease pathology and susceptibility. Association of SLC11A1 with cutaneous leishmaniasis, a neglected tropical disease, is not well established. Inconsistencies have been observed within different populations worldwide with respect to genetic susceptibility...
January 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28060899/longitudinal-profiles-of-thyroid-hormone-parameters-in-pregnancy-and-associations-with-preterm-birth
#14
Lauren E Johns, Kelly K Ferguson, Thomas F McElrath, Bhramar Mukherjee, Ellen W Seely, John D Meeker
INTRODUCTION: Overt thyroid disease in pregnancy is associated with numerous maternal and neonatal complications including preterm birth. Less is known about the contribution of trimester-specific subclinical alterations in individual thyroid hormones, especially in late gestation, on the risk of preterm birth. Herein, we examined the associations between subclinical changes in maternal thyroid hormone concentrations (TSH, total T3, free and total T4), measured at multiple time points in pregnancy, and the odds of preterm birth in pregnant women without clinical thyroid disease...
2017: PloS One
https://www.readbyqxmd.com/read/28056794/mercury-exposure-and-risk-of-cardiovascular-disease-a-nested-case-control-study-in-the-predimed-prevention-with-mediterranean-diet-study
#15
Mary K Downer, Miguel A Martínez-González, Alfredo Gea, Meir Stampfer, Julia Warnberg, Miguel Ruiz-Canela, Jordi Salas-Salvadó, Dolores Corella, Emilio Ros, Montse Fitó, Ramon Estruch, Fernando Arós, Miquel Fiol, José Lapetra, Lluís Serra-Majem, Monica Bullo, Jose V Sorli, Miguel A Muñoz, Antonio García-Rodriguez, Mario Gutierrez-Bedmar, Enrique Gómez-Gracia
BACKGROUND: Substantial evidence suggests that consuming 1-2 servings of fish per week, particularly oily fish (e.g., salmon, herring, sardines) is beneficial for cardiovascular health due to its high n-3 polyunsaturated fatty acid content. However, there is some concern that the mercury content in fish may increase cardiovascular disease risk, but this relationship remains unclear. METHODS: The PREDIMED trial included 7477 participants who were at high risk for cardiovascular disease at baseline...
January 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28056391/proton-pump-inhibitors-on-pancreatic-cancer-risk-and-survival
#16
Malcolm D Kearns, Ben Boursi, Yu-Xiao Yang
BACKGROUND: Hypergastrinemia may promote the development and progression of pancreatic cancer. Proton pump inhibitor (PPI) therapy is known to cause hypergastrinemia. We sought to determine the association between PPI therapy and the risk of developing pancreatic cancer as well as survival following pancreatic cancer diagnosis. METHODS: We conducted a nested case-control study and a retrospective cohort study in The Health Improvement Network (THIN), a medical records database representative of the UK population...
January 2, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28056268/-investigation-into-the-relationship-between-mitochondrial-12-s-rrna-gene-trna-gene-and-cytochrome-oxidase-%C3%A2-gene-variations-and-the-risk-of-noise-induced-hearing-loss
#17
J Jiao, G Z Gu, G S Chen, Y H Li, H L Zhang, Q Y Yang, X R Xu, W H Zhou, H Wu, L H He, Y X Zheng, S F Yu
Objective: To explore the relationship between mitochondrial 12 S rRNA gene variation, tRNA gene variation and cytochrome oxidase Ⅱ gene point mutations and the risk of noise-induced hearing loss (NIHL). Methods: A nested case-control study was performed that followed a cohort of 7 445 noise-exposed workers in a steel factory in Henan province, China, from January 1, 2006 to December 31, 2015. Subjects whose average hearing threshold was more than 40 dB(A) in high frequency were defined as the case group, and subjects whose average hearing threshold was less than 35 dB(A) in high frequency and less than 25 dB (A) in speech frequency were defined as the control group...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056267/-association-between-eye-absent-homolog-4-gene-polymorphisms-and-occupational-noise-induced-hearing-loss
#18
Q Y Yang, X R Xu, J Jiao, Y X Zheng, L H He, S F Yu, G Z Gu, G S Chen, W H Zhou, H Wu, Y H Li, H L Zhang, Z R Zhang
Objective: To identify the association between genetic polymorphisms in the eye absent homolog 4 (EYA4) gene and noise-induced hearing loss (NIHL). Method: A nested case control study was conducted based on a cohort of noise-exposed subjects. In total, 292 cases were selected from a steel factory from 6 297 subjects during Jan 1, 2006 to Dec 12, 2015,who had an average hearing threshold of more than 40 dB(A); 584 matched control subjects for each case were designated on the basis of matched criteria including same gender, age (±5 years) and duration of exposure to noise (±2 years)...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056266/-association-between-variations-in-protocadherin-15-gene-and-occupational-noise-induced-hearing-loss
#19
X R Xu, Q Y Yang, J Jiao, Y X Zheng, L H He, S F Yu, G Z Gu, G S Chen, W H Zhou, H Wu, Y H Li, H L Zhang, Z R Zhang
Objective: The aim of this study was to investigate whether genetic variability in the protocadherin 15 (PCDH15) gene may correspond with increased susceptibility to noise-induced hearing loss (NIHL) in a Chinese population. Methods: A nested case-control study was performed that followed a cohort of 7 445 noise-exposed workers in a steel factory of Henan province in China from January 1, 2006 to December 31, 2015. In this study, 394 cases who had an average hearing threshold of more than 40 dB (A) in high frequency were defined as the case group, and 721 controls who had an average hearing threshold of less than 35 dB (A) in high frequency and less than 25 dB (A) in speech frequency were defined as the control group...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056068/the-association-between-polypharmacy-and-dementia-a-nested-case-control-study-based-on-a-12-year-longitudinal-cohort-database-in-south-korea
#20
Hae-Young Park, Ji-Won Park, Hong Ji Song, Hyun Soon Sohn, Jin-Won Kwon
Dementia is a major concern among growing chronic diseases in the aging society and its association with polypharmacy has not been adequately assessed. The objective of this study was to determine the association between polypharmacy and dementia through multiple statistical approaches. We conducted a nested case-control study for newly diagnosed dementia cases using the South Korean National Health Insurance Service sample cohort database (2002-2013, n = 1,025,340). Interactions between polypharmacy (an average use of ≥5 prescription drugs daily) and comorbidities or potentially inappropriate medications (PIMs) were tested...
2017: PloS One
keyword
keyword
786
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"