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Fig. 4 | BMC Medical Research Methodology

Fig. 4

From: Measuring the impact of zero-cases studies in evidence synthesis practice using the harms index and benefits index (Hi-Bi)

Fig. 4

The real-world investigation of the Hi and Bi based on Cochrane reviews. 1) The left top panel presents Hi by the approximating (Hi_ap) and exact method (Hi_ex) when Hi > 0 by both methods; 2) The right top panel presents Hi by the approximating (Hi_ap) and exact method (Hi_ex) when Hi = 0 by either of the methods; 3) The left bottom presents Bi of the approximating (Bi_ap) and exact method (Bi_ex) when Bi > 0 by both methods; 4) The right top presents Bi of the approximating (Bi_ap) and exact method (Bi_ex) when Bi = 0 by either of the methods

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