hos flere end 1 ud af 10 patienter hos færre end 1 ud af 10, men flere end 1 ud af 100 patienter hos færre end 1 ud af 100, men flere end 1 ud af 1000 patienter hos færre end 1 ud af 1000, men flere end 1 ud af 10. 000 patienter hos færre end 1 ud af 10. 000 patienter, inklusive enkeltstående rapporter
less than 1 in 10, but more than 1 in 100 patients less than 1 in 100, but more than 1 in 1000 patients less than 1 in 1000, but more than 1 in 10,000 patients less than 1 in 10,000 patients, including isolated reports