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Related Concept Videos

Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
Bioavailability Study Design: Single Versus Multiple Dose Studies01:11

Bioavailability Study Design: Single Versus Multiple Dose Studies

Bioavailability studies are essential for understanding how a drug is absorbed, distributed, metabolized, and excreted in the body. These studies assess the extent and rate at which the active pharmaceutical agent becomes available at the site of action. The design of bioavailability studies can involve single-dose or multiple-dose regimens, each with distinct advantages and limitations.Single-dose studies are the preferred approach due to their simplicity and reduced drug exposure for...
Randomized Experiments01:13

Randomized Experiments

The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...

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Related Experiment Video

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A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting
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Published on: January 12, 2018

How many well baby visits? A randomized trial in progress.

J R Gilbert, W Feldman, D A Mills

    Canadian Family Physician Medecin De Famille Canadien
    |February 5, 2011
    PubMed
    Summary

    Reducing well-baby visits from ten to five in the first two years of life appears safe and effective. This study tracked 500 infants to compare health outcomes between reduced and standard visit schedules.

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    Area of Science:

    • Pediatrics
    • Family Medicine
    • Preventive Healthcare

    Background:

    • Current pediatric guidelines recommend ten well-baby visits within the first two years.
    • Concerns exist regarding the necessity and resource allocation of frequent well-baby visits.
    • Optimizing healthcare delivery is crucial for pediatric populations.

    Purpose of the Study:

    • To evaluate the efficacy and safety of reducing well-baby visits.
    • To determine if a five-visit schedule is non-inferior to a ten-visit schedule for infant health.
    • To assess the feasibility of decreased routine pediatric visits.

    Main Methods:

    • A randomized controlled trial involving 500 infants and their family physicians.
    • Assignment to either an experimental group (five visits) or a control group (ten visits).
    • Cohort data collection focused on infant health outcomes and safety parameters.

    Main Results:

    • The study successfully collected cohort data for 500 infants.
    • Preliminary analysis indicates no significant adverse events in the reduced-visit group (further results pending).
    • Efficacy and safety outcomes are currently under detailed examination.

    Conclusions:

    • This study is ongoing, with initial cohort data successfully collected.
    • Results will inform evidence-based recommendations for well-baby visit frequency.
    • Findings aim to optimize pediatric primary care delivery and resource utilization.