Sentence examples for by study size and from inspiring English sources

Meta-relative risks for survival by prognostic factor were calculated, stratified by study size and annual clinic volume.

Table 2 summarizes the mRRs for each of the prognostic factors overall, by study size and by annual clinic volume.

The metaregression was weighted by study size and the threshold effect was not considered, as there were not additional cutoff points within each pre-specified haemoglobin threshold.

Stratifications by study size and annual clinic volume were based on the median number of patients per center (n = 236) and median annual clinic volume (n = 21) of all studies included in the meta-analysis.

Heterogeneity seemed to be especially affected by study size and follow-up duration, but the latter is probably influenced by the exclusion from this analysis of four studies, which did not report follow up.

Thus, as for ever smoking, RRs tend to be higher for males and for North American studies for all three outcomes, higher for prospective studies for COPD, and higher when based on mortality for COPD and CB, with no obvious variation by study size, and an erratic pattern for publication year.

To identify potential sources of heterogeneity between studies and to assess the effect of study characteristics on the results, we repeated the meta-analysis in strata defined by study size, design and method of data collection and ethnicity of participants.

Accordingly, subgroup analyses were conducted by stratifying study size and estimated patient volume per study center (termed "annual clinic volume" herein) to identify potential sources of between-study heterogeneity.

Different analysis methods were considered, given the statistical challenge of rare events [ 11], including the Mantel-Haenszel odds ratio (with and without zero-cell correction), inverse variance, and weighting by study size.

We used a variety of techniques including the Mantel-Haenszel odds ratio (with and without zero-cell correction), inverse variance, and weighting by study size to explore sensitivity to change.

When tested, hospital-based medication reconciliation interventions have consistently demonstrated reductions in medication discrepancies, though effects on more distal outcomes such as readmission have been less consistent and limited by study size [ 12, 13].