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Pregnancy Tests

Pregnancy Tests are analytical procedures used to detect the presence of human chorionic gonadotropin (hCG), a hormone produced during pregnancy.
These tests can be conducted using a variety of biological samples, such as urine or blood, and provide a reliable way to confirm pregnancy status.
PubCompare.ai helps researchers optimize their pregnancy test workflow by locating and comparing protocols from literature, preprints, and patents, ensuring reliable and accurate results.
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Most cited protocols related to «Pregnancy Tests»

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Publication 2015
Birth Weight Cuboid Bone Ethnicity Females Fetal Growth Fetus Gestational Age Health Insurance Infant Males Pregnancy Tests Racial Groups Signs and Symptoms Student Ultrasonography Woman
MIPS is a prospective study of stable CAD patients enrolled between June 2011 and August 2014 from Emory University affiliated hospitals and clinics, including Emory University Hospital, Grady Memorial Hospital, Emory Midtown Hospital and the Atlanta VA Medical Center. Patients were enrolled if they were 30 to 79 years of age and had documented CAD defined as any of the following: an abnormal coronary angiogram demonstrating evidence of atherosclerosis with at least luminal irregularities, previous percutaneous or surgical coronary revascularization, a history of myocardial infarction (MI), or a positive nuclear stress test. Patients were excluded if they had an acute coronary syndrome or decompensated heart failure in the prior week, severe psychiatric conditions other than major depression, pregnancy (women of childbearing age were screened by pregnancy test), uncontrolled high blood pressure (≥180/110 mmHg), or with contraindications for regadenoson administration. Beta-adrenergic antagonists were held for 24 hours and calcium channel blockers and nitrates for at least 12 hours prior to the stress test. Patients for whom withholding medications was considered unsafe were excluded. The diagnosis of heart failure was made using the following criteria: a) self-reported history of heart failure that was confirmed by chart review; b) medical chart review for previous diagnosis of heart failure (all patients were seen by a cardiologist at Emory affiliated hospitals before enrollment); c) ICD codes and adjudication by research personnel. Coronary angiographic data were collected by chart review with a median time between the angiogram and enrollment of 2.1 (1.0 – 4.4) years. The Emory University Institutional Review Board approved the research protocol, and all participants provided written informed consent.
Publication 2016
Acute Coronary Syndrome Adrenergic beta-Antagonists Angiography ARID1A protein, human Atherosclerosis Calcium Channel Blockers Cardiologists Congestive Heart Failure Coronary Angiography Diagnosis Disorder, Depressive Ethics Committees, Research Exercise Tests Heart High Blood Pressures Myocardial Infarction Nitrates Operative Surgical Procedures Patients Pharmaceutical Preparations Phenobarbital Pregnancy Pregnancy Tests regadenoson TNPO1 protein, human Vision Woman

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Publication 2020
Adult Ageusia Anti-Antibodies Antibodies BLOOD Complete Blood Count Cough COVID 19 Dyspnea Eligibility Determination Ethics Committees, Research Fever Forehead Glucose Health Personnel Healthy Volunteers Hematuria Hepatitis B Kidney Liver Function Tests Organisms, Genetically Modified Pharmaceutical Preparations Pregnancy Tests Proteins Safety SARS-CoV-2 Urinalysis Vaccines Voluntary Workers Woman
The present study included 121 healthy volunteers aged 27.22 ± 10.61 years old, and 22 depressed patients aged 29.48 ± 9.28 years old.
This mixed population was chosen because of the nature of the instrument. The STAI principally measures anxiety as a feature of the general population, so the main study sample to test the properties of the instrument should be 'healthy normal subjects'. However it is also important to test the properties of the instrument in a population that manifests higher than normal levels of anxiety. Depressed patients were chosen on the basis that this patients population was easier for the researchers to recruit taking into consideration practical issues.
Patients were physically healthy with normal clinical and laboratory findings (Electroencephalogram, blood and biochemical testing, thyroid function, test for pregnancy, B12 and folic acid). They came from the inpatient and outpatient unit of the 3rd Department of Psychiatry, Aristotle University of Thessaloniki, General Hospital AHEPA, Thessaloniki, Greece. They were consecutive cases and were chosen because they fulfilled the above criteria.
The normal controls group was composed by members of the hospital staff, students and other volunteers. A clinical interview confirmed that they did not suffer from any mental disorder and their prior history was free from mental and thyroid disorder. They were free of any medication for at least two weeks and were physically healthy.
All patients and controls provided written informed consent before participating in the study.
Translation and back translation were made by two of the authors; one of whom did the translation and the other who did not know the original English text did the back translation. The final translation was fixed by consensus of all authors.
The Greek translation along with the translated manual of the test will be available from the same publisher of the English version of the test and manual.
Clinical diagnosis was reached with the Schedules for Clinical Assessment in Neuropsychiatry (SCAN) version 2.0 [9 (link),10 ] and the International Personality Disorders Examination (IPDE) [11 (link)-14 (link)]. Both were applied by one of the authors (KNF) who has official training in a World Health Organization Training and Reference Center. The IPDE did not contribute to the clinical diagnosis of anxiety and/or depression, but was used in the frame of a global and comprehensive assessment of the patients. The second examiner performed an unstructured interview. The Symptoms Rating Scale for Depression and Anxiety (SRSDA) which provides an Anxiety index and a Beck Depression Inventory-21 score and the Eysenk Personality Questionnaire (EPQ) were applied for cross-validation purposes.
In 20 of the patients the instrument was re-applied 1–2 days later
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Publication 2006
Anxiety BLOOD Depressive Symptoms Diagnosis Electroencephalography Folic Acid Healthy Volunteers Inpatient Mental Disorders Outpatients Patients Personality Disorders Personnel, Hospital Pharmaceutical Preparations Pregnancy Tests Reading Frames Student Thyroid Diseases Thyroid Gland Voluntary Workers
Forty patients (25 males and 15 females) aged 29.65 ± 9.38 years (range 18–55) suffering from Major Depressive disorder according to DSM-IV [9 ] and depression according to ICD-10 criteria [10 ], and 120 normal comparison subjects (71 males and 49 females aged 27.23 ± 10.62 years (range 18–51) entered the study. In 20 of them (12 patients and 8 normal comparison subjects) the instrument was re-applied 1–2 days later.
Patients and normal comparison subjects were free of any medication for at least two weeks and were physically healthy with normal clinical and laboratory findings (Electroencephalogram, blood and biochemical testing, thyroid function, test for pregnancy, 12 and folic acid).
Patients came from the inpatient and outpatient unit of the 3rd Department of Psychiatry, Aristotle University of Thessaloniki, General Hospital AHEPA, Thessaloniki, Greece. They were consecutive cases and were chosen because they fulfilled the above criteria.
The normal comparison group was composed of members of the hospital staff and relatives of patients. A clinical interview confirmed that they did not suffer from any mental disorder and their prior history was free from mental and thyroid disorder.
All patients and normal comparison subjects provided written informed consent before participating in the study.
Note: the study sample was identical with that used for the CES-D standardization study[4 (link)]
Publication 2001
BLOOD Electroencephalography Females Folic Acid Inpatient Major Depressive Disorder Males Mental Disorders Outpatients Patients Personnel, Hospital Pharmaceutical Preparations Pregnancy Tests Thyroid Diseases Thyroid Gland

Most recents protocols related to «Pregnancy Tests»


Model selection exploring the moderation effect of DENV serotype on dengue severity across pregnancy status

A multicollinearity test was performed and tolerance for hypertension (0.93) and diabetes (0.93) showed no multicollinearity between them. Similarly, there was no multicollinearity observed among the other covariates. Year and region were considered as potential random effects and were evaluated in a two-level hierarchical model. The Wald tests for random effects for the region (p = 0.049) and year (p = 0.032) were both significant. A comparison between random and fixed effects model using the Bayesian information criteria (BIC) revealed that the random-effects model performed better. Hence, both region and year were retained in the model as random effects. Based on the hierarchical model (1), a multiple logistic regression was performed with severe or non-severe DF as the outcome variable and pregnancy as the exposure variable. y=Xβ+Zu+ε
where X a matrix (N *p) with p predictor variables and Z is a matrix (N*q) for q random effects [19 ].
Two-way interactions were explored, and multiple interactions were found to be statistically significant and retained. Other covariates in the model included dengue serotype, diabetes, hypertension, and age. The final model was chosen by comparing AIC and BIC between models. The AUC for the predicted probabilities of the final model was 0.7156 (Additional file 1: Fig. S1).
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Publication 2023
Dengue Fever Diabetes Mellitus High Blood Pressures Immune Tolerance Pregnancy Pregnancy Tests Severe Dengue
The dataset shows the results of individuals who were tested for pregnancy, diabetes, and hypertension. However, individuals without a test could potentially have been misclassified as ‘negative’. To quantitatively assess for this kind of systematic error, a sensitivity analysis is recommended [20 (link)]. Using a misclassification spreadsheet [21 ], results from the regression analysis were explored for exposure bias. The misclassification spreadsheet provides adjusted bias data based on observed data on pregnant women stratified by dengue severity. As suggested for best practices [22 (link)], pairs of sensitivity and specificity were explored to study exposure misclassification.

Spatial analysis

The sums of severe and non-severe dengue cases were calculated by pregnancy status. The spatial distribution of severe and non-severe dengue was visualized and compared across pregnancy status using ArcGIS. To measure spatial autocorrelation, Moran’s Index (I) was calculated for both pregnant and non-pregnant women with severe dengue. Moran’s I for the attributes pregnant (0.010, p = 0.13) and non-pregnant women (0.003, p = 0.54) were both not statistically significant, and the spatial distributions of these two attributes were random.
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Publication 2023
Diabetes Mellitus High Blood Pressures Hypersensitivity Pregnancy Pregnancy Tests Pregnant Women Severe Dengue
Data were double-entered in OpenClinica, cleaned, and exported to STATA 17.0 (StataCorp, College Station, TX, United States) for analysis. Descriptive analysis was used to understand baseline group characteristics. We determined the proportion that became pregnant as the number that tested positive for pregnancy during study follow-up divided by the total number of participants who tested negative for pregnancy at enrollment (i.e., 100% of our study population, by design). To estimate the incidence of pregnancy, we used the Kaplan–Meier technique to estimate the time to test positive for pregnancy after enrollment into the study and presented the estimated incidence rate per 100 person-years. To estimate baseline factors associated with incident pregnancy, we used Poisson regression analysis with robust error variance both for unadjusted and adjusted levels; variables for which the association attained p < 0.15 at the unadjusted level were selected for the multivariable model except for age, which was considered an a priori confounder. We tested for collinearity between the baseline audit score and the question “have you had any alcoholic drink in the past month?” The results showed no collinearity (variance inflation factors <5). However, due to the very small number of participants with the outcome for the high-risk alcohol use category, we did not consider the baseline audit score for the multivariable model. Variables with a p-value <0.05 at multivariable analysis were considered significantly associated with incident pregnancy. Results are presented as adjusted risk ratios (aRR) with p-values and 95% confidence intervals (CIs).
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Publication 2023
Alcoholics Pregnancy Pregnancy Tests
Research nurses collected data at 3-monthly study visits using interviewer-administered questionnaires. Data were collected on sociodemographic characteristics, sexual behavior, contraceptive use, pregnancy, sexually transmitted infections (STIs), and substance use. Volunteers who became pregnant were linked to antenatal care services and followed up for a pregnancy outcome.
Laboratory tests included pregnancy tests for beta-human chorionic gonadotrophin (β-hcg) hormone performed on urine samples using QuickVue (Quidel Corporation, San Diego, CA, United States) and HIV tests following the national testing algorithm, which involves a screening test (Alere Medical Co. Ltd., Chuba, Japan), the StatPak rapid confirmatory kit (Chembo Diagnostics System Inc., Medford, NY, United States), and SD Bioline as a tiebreaker (Standard Diagnostics, Inc., South Korea). STIs (Neisseria gonorrhoeae and Chlamydia trachomatis) were tested on endocervical swabs using the GeneXpert platform (Cepheid AB, Rontgenvagen 5, Soina, Sweden).
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Publication 2023
Care, Prenatal Chlamydia trachomatis Chorionic Gonadotropin, beta Subunit, Human Contraceptive Agents Diagnosis Endocervix Homo sapiens Hormones Interviewers Neisseria gonorrhoeae Nurses Pregnancy Pregnancy Tests Sexually Transmitted Diseases Substance Use Testing, AIDS Urine Voluntary Workers
Mann-Whitney test was used to compare quantitative variables between two groups, while the Kruskal-Wallis test (followed by Dunn post hoc test) was used for more than two groups. The relationship between two quantitative variables was assessed with Spearman’s coefficient of correlation. Odds ratios (OR), calculated with univariate logistic regressions, were used to analyse the impact of selected variables on the dichotomous outcomes (positive/negative pregnancy tests). The significance level for all statistical tests was set as 0.05. R 4.1.2, and MS Excel 365 were used for computations.
Publication 2023
Pregnancy Tests

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