Draws inferences from a sample to a population where the independent variable is not under the control of the researcher because of ethical concerns or logistical constraints.
Methods: Prospective population-based observationalstudy evaluating daily clinical practice in Northern Holland.
2
We illustrate our new methodology using data from a longitudinal observationalstudy.
3
Design: A prospective observationalstudy in a homogeneous population with nonspecific complaints.
4
Design and setting: Prospective observationalstudy in university hospital intensive care units.
5
Methods: Peruvians initiating first-line ART were enrolled in a prospective observationalstudy.
1
Melioidosis risk was estimated using Bayesian evidence synthesis of 12 observationalstudies.
2
Studies included randomized clinical trials, observationalstudies, guideline statements, and review articles.
3
Design: Systematic review and meta-analysis of randomised controlled trials and observationalstudies.
4
Most observationalstudies of CRP and cardiovascular disease have been in Europeans.
5
The adipocyte-secreted protein adiponectin is associated with insulin sensitivity in observationalstudies.
Ús de surveillance study en anglès
1
Methods: A national CSD surveillancestudy is conducted in Israel since 1991.
2
A long term surveillancestudy could hold the clues to developing a Covid-19 vaccine.
3
A large surveillancestudy on antimicrobial prescribing appropriateness in different hospital settings is warranted.
4
Design: We conducted a 15-year prospective surveillancestudy of all invasive pneumococcal infections in children.
5
The authors evaluated the effectiveness and safety of bimatoprost using an open-label, non-comparative, three-month, community-based surveillancestudy.
6
Methods: Data were obtained from a detailed demographic and geographic surveillancestudy in four villages on the Myanmar-Thailand border.
7
Conclusion: This postmarketing surveillancestudy suggests diagnostic efficacy and a favorable clinical safety profile of Gd-DOTA in clinical practice.
8
Design: A nationwide surveillancestudy.
9
To address the limited clinical experience in Japanese patients, a post-approval surveillancestudy was undertaken in bevacizumab-treated patients in Japan.
10
A surveillancestudy was undertaken to examine the population dynamics and antimicrobial resistance of Mannheimia haemolytica isolated from feedlot cattle.
11
The potential causal relationship with humidifier disinfectants was examined by a prospective surveillancestudy after humidifier disinfectant sales were suspended.
12
We conducted a multicenter surveillancestudy to investigate recent trends in species distribution and antifungal susceptibility patterns among IC-associated Candida spp.
13
Methods: We analyzed data from a population-based surveillancestudy conducted in Guatemala from 2008 through 2013.
14
Study design: A prospective surveillancestudy was carried out in Bologna, Italy, from November 2000 to March 2006.
15
We analyzed 5,734 complete occupational histories obtained by telephone interview as part of an ongoing occupational cancer surveillancestudy.
16
As part of the clearance, the company agreed to a post-market surveillancestudy to monitor the safety of bovine thrombin as used in the gel.