Table 1

Results of meta-regression analysis.

ExposureCovariate*N studiesCoefficient (95% CI)P value
OSA% Male22−0.007 (−0.02 to 0.02)0.94
OSAAge110.04 (0.01 to 0.07)0.003
OSAPublication year22−0.05 (−0.09 to −0.009)0.017
OSA% Diabetes90.005 (−0.004 to 0.001)0.31
  • Age and publication year were significant explanatory variables for the variation in the risk of mortality associated with OSA.

  • *Age was the mean age of study population; otherwise, the median age was used. Publication year is per increasing year of publication.

  • OSA, obstructive sleep apnoea.