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A comparison of epidemiological and clinical features of trigeminal neuralgia (TN) and glossopharyngeal neuralgia (GN) in Rochester, Minn., reveals several differences. The overall age- and sex-adjusted annual incidence rates were significantly higher for TN than for GN (4.7 vs. 0.8 per 100,000 population). The TN:GN ratio was increased for both men and women and was 5.9:1 for both sexes combined. This ratio is greater than reported in previous non-population-based studies. GN is a milder disease than TN, as indicated by the number of episodes, treatment, and characterization of pain. The right side is affected more often with TN than with GN. Bilaterality was noted less often in TN than in GN cases.
Katusic et al. (Mon,) studied this question.