RR <5%

MS < 36

Extremely unlikely

5% ≤ RR < 25%

36 ≤ MS < 100

Very unlikely

25% ≤ RR < 50%

100 ≤ MS < 137

Unlikely

50% ≤ RR < 75%

137 ≤ MS < 175

Likely

75% ≤ RR < 95%

175 ≤ MS < 238

Very likely

RR ≥ 95%

MS ≥ 238

Extremely likely