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Table 2 Perioperative phase of anesthesia-related interventions according to the number of studies and patients

From: Anesthesia interventions that alter perioperative mortality: a scoping review

Perioperative phase

Number of studies

Number of patients

Preoperative

25

6139

Intraoperative

101

24,824

Postoperative

62

20,964

Multiphase (i.e., intervention spanned across 2 or 3 phases)

180

95,119

Not reported

1

280

Total

369

147,326