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. 2012 Nov 26;2(6):e001993. doi: 10.1136/bmjopen-2012-001993

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Professional achievements according to PAI stratified by gender.

PAI: Professional Achievement Index. Each indicator was evaluated on a trichotomous ordinal scale (low/medium/high presence). Each mode was attributed a numerical value between 0 and 1. The results obtained for each individual indicator were then added. To make the results of the different indexes homogeneous, the value scale of each index has been equalised at a 0–10 range. For each index a threshold system has been set up, so to place each individual within a ‘low/medium/high’ trichotomous scale with respect to a given profile (for instance: ‘medium professional achievement’). See table 2 for indicators included in this index.