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Table 1 RNT and NNT under different baseline response rates and response rate differences

From: Reduction in number to treat versus number needed to treat

Response rate difference RNT NNT
Baseline response rate (control)
0.8 0.6 0.4 0.2 0.1 0.05 0.01
0.2 0.25 0.42 0.83 2.50 6.67 16.00 95.24 5.00
0.15 0.20 0.33 0.68 2.14 6.00 15.00 93.75 6.67
0.1 0.14 0.24 0.50 1.67 5.00 13.33 90.91 10.00
0.05 0.07 0.13 0.28 1.00 3.33 10.00 83.33 20.00
0.01 0.02 0.03 0.06 0.24 0.91 3.33 50.00 100.00
0 0 0 0 0 0 0 0