Sentence examples for observational comparisons from inspiring English sources

The empirical evidence reported comes from three sources, natural experiments, observational comparisons of individuals, and the Health Insurance Experiment HIEE).

Further observational comparisons are needed to evaluate the effects of different stratification and wind conditions and the limitations on the vertical mixing parameterizations.

However, observational comparisons of such infants with matched fetuses delivered after spontaneous labour have shown no reduction in short term adverse neonatal outcomes.

There are several new ideas involved, particularly 1) that an element of benchmarking is always involved when making observational comparisons in real-world circumstances, and 2) that assessment of effectiveness due to any health care system intervention faces the same methodological challenges as clinical comparisons.

The study included a prospective intervention group and an observational comparison group (Fig. 1).

Though a per protocol analysis may be appropriate in some settings, it should be properly labelled as a non-randomised, observational comparison.

Design A population-wide observational comparison of outcomes over two epochs, before and after the establishment of managed clinical neonatal networks.

On this basis, women homogenous for age, parity, education and exposure to risk factors could be enrolled in parallel in the prospective intervention and in the observational comparison arm.

In a prospective observational comparison of 37 parturients with PPH and 54 without abnormal bleeding, FIBTEM MCF values were lower in the haemorrhage group [median (IQR)=15 (9–19) mm] than in the non-bleeding group [19 (17 23) mm]; the latter were consistent with independently reported FIBTEM MCF values [22 (18 25) mm] recorded 1 2 h after non-haemorrhagic delivery.

Statistical analyses were not made for these subsets of patients, as this was non-randomised and protocol-determined; results are given for observational comparison only.Analyses of HbA1c, clinic FPG and change in weight after 52 weeks were by ANOVA with treatment, region and oral glucose-lowering therapy as fixed effects and baseline (randomisation) value as covariate.

For example, in an observational setting, comparisons are commonly made and nonlinearities observed between groups of persons with BMI (kg/m) in the ranges below 18.5 (underweight), 18.5 to 25 (normal weight), 25 to 30 (overweight), and over 30 (obese).