Sentence examples for makes comparability difficult from inspiring English sources

For instance, sample size estimation, age group of the study participants, and inclusion and exclusion criteria, differed considerably between studies, which makes comparability difficult.

The wide heterogeneity observed due to non-uniformity in methodology and disease screening criteria makes comparability difficult and explains to some extent the large diversity observed.

Even if most studies did provide a detailed description of the costs of the intervention programme in their country currency, data on the underlying quantities of resources used, discounting/inflation methods and the price year were often not displayed, thus making comparability difficult.

At the local level risk models and hazard datasets lack spatial detail required to capture the underlying drivers, and loss data lack good geospatial referencing, which makes comparability and analysis difficult over time and space (Cutter and Gall 2015).

This makes comparison difficult.

One of the methodological limitations of the studies identified in this review is the different types of economic models used, making comparability across results difficult: none of the studies compared alternative models to answer the same question.

This lack of clarity might explain the variability of interventions across the trials that made comparability of interventions difficult.

Laboratory-dependent confounding factors include differences in sample processing and data analyses, making comparability of data difficult.

Study populations were heterogeneous, as were study designs, data collection methods, and outcomes, making comparability across studies difficult and generalizability of findings limited.

Detailed reviews of these studies have concluded that the strength of the evidence differs among air pollutants, birth outcomes, and exposure periods, although differences in study design, exposure assessment, and definition of outcomes make comparability of results difficult (Glinianaia et al. 2004; Lacasaña et al. 2005; Šrám et al. 2005; Wang and Pinkerton 2007).

These contextual differences often make comparability of voucher costs across countries difficult to achieve.