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Table 4 Truth Table for Soft Mandate / Other QCA (n = 20 cases)

From: ‘Leading from the front’ implementation increases the success of influenza vaccination drives among healthcare workers: a reanalysis of systematic review evidence using Intervention Component Analysis (ICA) and Qualitative Comparative Analysis (QCA)

Strong Leader-ship Support Don’t go in cold Two-way engage-ment Edu-cation Com-ponent Letter Outcome Number of Studies Consistency PRI Cases
1 1 1 1 0 1 4 1 1 Thomas, Lavela, Heinrich, LeMaitre
0 0 0 1 1 1 1 1 1 Shannon
0 1 1 1 1 1 1 1 1 Sadlier
1 1 0 1 0 1 1 1 1 Ribner
1 1 0 1 1 1 1 1 1 Lopes
1 1 1 0 0 1 1 1 1 Honda
1 1 1 1 1 1 1 1 1 Guanche Garcel
0 1 0 1 0 0 4 0 0 Doratoraj a (letter), Camarago, Zimmerman a (incentives), Zimmerman b (increased access)
0 0 1 1 0 0 2 0 0 Dey a, Dey b
0 0 0 1 0 0 1 0 0 Leitmeyer
0 1 0 0 0 0 1 0 0 Doratoraj b (raffle)
0 1 1 1 0 0 1 0 0 Smedley
1 0 0 1 0 0 1 0 0 Rothan-Tondeur (educ only)
  1. PRI Proportional Reduction in Inconsistency – a measure of how well a configuration distinguishes between the outcome and its negation