Socioeconomic position and use of healthcare in the last year of life: A systematic review and meta-analysis.

PLoS Med · 2019 · PMC6478269 · PMID 31013279

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an overall trendno p-value reported

This approach uses a two-stage generalised least squares model that first estimates the within-study trend and then pools these to give an overall trend estimate [ 76 ].

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