We have used a semi-experimental design in which HIV prevalence reductions among young pregnant women were compared in large geographical areas (districts) stratified on the basis of the intensity of targeted intervention (TI) implementation as reflected by the program data on condom distribution.
Data obtained from different commercially-made and in-house microarray platforms have been compared in a large number of studies.
Although imaging is widely applied in patients presenting with acute abdominal pain, imaging strategies had not previously been compared in a large prospective study of diagnostic accuracy.
The Berlin and STOP Questionnaires have been compared in a cohort of surgical patients 24 and the STOP and STOP-BANG Questionnaires have been compared in a large study involving several distinct cardiovascular and respiratory disease cohorts.
The performance of mammography, sonography and MR mammography was compared in three large series (Table 5).
Ideally, the safety of these agents would be compared in a large, multi-center, randomized controlled trial.
Letrozole and anastrozole are currently being compared in a large randomized head-to-head trial in early breast cancer (ClinicalTrials.gov identifier NCT00248170) [ 120].
15 Currently, the 2 successful strategies in treating CC, concomitant CHEM/RAD and CHEM followed by SURG, are being compared in a large phase III study performed by the European Organization for the Research and Treatment of Cancer EORTC-559944).
In the present study, two contrast agents (different with regard to their iodine concentration - iobitridol 350 mgI/ml vs. iomeprol 400 mgI/ml) were compared in a large population.
Recently, these systemic inflammation-based prognostic scores, mGPS and NLR were compared in a large cross-sectional cohort of unselected patients with cancer (Proctor et al, 2011); however, to our knowledge, there has been no direct comparison of the longitudinal measurement of the mGPS and NLR.
