Impact of diabetes on COVID-19 mortality and hospital outcomes from a global perspective: An umbrella systematic review and meta-analysis.

Of note, prospective ( N = 4), 1.38 [0.78, 2.43], p = 0.26, I 2 = 50%, middle Eastern, European, and American studies did not reach statistical significance for this outcome (Figure 3B ). 3.3.3.

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