Background: Atopy and allergic rhinitis are thought to be increased in
prevalence in chronic fatigue syndrome (CFS). Methods: To investigate
this hypothesis, 51 CFS (CFS), 34 normal (N), 27 allergic rhinitis (A
R), and 17 patients with other rheumatologic diseases filled out an Ai
rway Symptom Severity self-report questionnaire to determine the frequ
encies of nasal, sinus, and chest symptoms, and a Systemic Complaints
self-report questionnaire to determine the frequencies of complaints r
eferable to neurologic, rheumatologic, gastrointestinal, and other sys
tems. All subjects received a standard set of allergy skin tests, and
were subdivided into those with positive and negative results. Results
: Allergy skin tests were positive in 35% of CFS and 44% of N subjects
(difference not significant by Chi(2)). Significant rhinitis complain
ts were present in 83% of skin test positive CFS, 76% of skin test neg
ative CFS, 74% of AR, and 23% of N subjects. Systemic Complaints score
s were significantly elevated in skin test positive (94%) and negative
(94%) CFS groups compared with AR (35%);and N (6%) groups. This score
could significantly discriminate between CFS and N subjects. Conclusi
ons: These data indicate that in this CFS population, 24% had no signi
ficant rhinitis complaints, 30% had positive skin tests suggesting the
potential for allergic rhinitis complaints, and 46% had nonallergic r
hinitis. The mechanism of the nonallergic component may offer insights
into the pathogenesis of CFS.