Related Experiment Video
Updated: May 26, 2026
3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
Published on: June 2, 2014
Devising and validating a headache diary in a series of patients with chronic daily headache from Colombia
Gabriel F Torres1, Martha I Otálvaro, Juan C Vargas
1Hospital Santa Clara E.S.E, Bogotá, Colombia. gftorresa@unal.edu.co
Objective:
To devise and test the reliability and validity of a brief headache diary in a series of Colombian patients with chronic daily headache.
Methods:
The study was designed in five stages: selection of domains (group of patients and experts); initial devising of the items (writing group); identification of non-understandable items (n=20); assessment of internal consistency (n=100); assessment of validity and assessment of sensitivity to change during seven consecutive days (n=25, 175 observations).
Results:
Five domains were selected: headache presence, severity and length of pain, analgesics intake, and missing workdays. The headache diary is internally consistent (≈75% of rotated variance), correlates with the medical interview (Spearman's rho and Kendall's tau over 0.8 for each domain) and it has an adequate and stable sensitivity and specificity (82 to 96%).
Conclusions:
This headache diary is a reliable and valid instrument and represents the most important features affecting Colombian patients with chronic daily headache.
