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Table 1 Definition of probability, criticality and supervision levels

From: Neonatal nasogastric tube feeding in a low-resource African setting – using ergonomics methods to explore quality and safety issues in task sharing

Task attribute Low Medium High
Probability Never known to happen Known to happen occasionally Known to happen frequently
Criticality/risk No risk of injury to patient if task is incorrectly done or missed Risk of minor injury to patient if task is incorrectly done or missed Risk of serious injury or death of patient if task is incorrectly done or missed
Supervisiona Supervision done by the nurse for only part of the implementation process of the task Supervision done by the nurse for about half of the implementation process of the task Supervision done by the nurse for the entire implementation process of the task
  1. aDuring analysis, ‘low’ and ‘medium’ levels of supervision were combined into one category of ‘low/medium’