When we want to measure provider performance with outcome measures, in this case pregnancy rates of IVF clinics, two issues are important: case-mix adjustment and natural variation.[ 3, 4] Regarding the first issue, the chance of pregnancy is not only determined by the performance of the clinic but also by characteristics of the mother.
Whether waiting times vary due to chance alone after adjustment for clinical factors and variations in demand remains an important question in health services research on access to care.
Circadian rhythms are biological oscillations entrained by the environmental light/dark cycle, and the regulatory and metabolic networks that direct the body's adjustments to variations of external and internal environment (Anderson et al., 2013).
In return the museum agreed to turn over to the city 30percentt of its increased admission revenue, with a ceiling of $3 million and allowing adjustments for variations in attendance.
This article addresses the water management problem in industrial parks with considering two major points: (1) the water network synthesis problem towards park scenario in each time period, (2) the multi-period problem resulted from predictable development and adjustment variations of park.
These results indicate that the abiotic homogeneous Fe(II) oxidation rate law, with adjustments for variations in temperature and CO2 outgassing rate, may be applied to predict changes in aqueous iron and pH for net-alkaline, ferruginous waters within a stream (natural conditions) or a CMD treatment system (engineered conditions).
For GM atrophy the t-tests were further augmented by an analysis of co-variance (ANCOVA) with adjustments for variations in age and total intra-cranial volumes.
Similarly, for hypoperfusion the t-tests were augmented by ANCOVA with adjustments for variations in age and global perfusion to account for global variations in blood flow between subjects.
Following stratification and adjustment, seasonal variations in mortality appeared more pronounced in northern temperate zones, whereas the variations in mortality in tropical zones did not reach significance, although the tendency to a higher winter mortality was also observed in tropical regions.
The 1860 phonautogram was separated into 16 tracks, which Mr. Giovannoni, Mr. Feaster and Mr. Martin meticulously stitched back together, making adjustments for variations in the speed of Scott's hand-cranked recording.
