Signs and Evidence

Making clinical sense of scientific data



 Positive likelihood ratio
5.80 ( Smetana GW et al. )
(average) 5.8
Negative likelihood ratio
0.25 ( Smetana GW et al. )
(average) 0.25
Cluster headache
 Positive likelihood ratio
2.09 ( Uluduz D et al. )
(average) 2.09
Negative likelihood ratio
0.78 ( Uluduz D et al. )
(average) 0.78

Sources used:

1.Smetana GW et al. The Diagnostic Value of Historical Features in Primary Headache SyndromesA Comprehensive Review. Arch Intern Med. 2000;160(18):2729-2737
2.Uluduz D et al. Cranial autonomic features in migraine and migrainous features in cluster headache. Arch Neuropsychiatr 2016; 53