Is Dysphagia Under Diagnosed or is Normal Swallowing More Variable than We Think? Reported Swallowing Problems in...

Dysphagia prevalence in younger community dwelling adults and across nations is sparse. We investigated the prevalence of swallowing problems in an unselected cohort of people aged 18-65 years.

The EAT-10 Assessment Tool was converted into an anonymized online survey. Invitations were e-mailed to author contacts and onwards dispersal encouraged. Analysis was performed using non-parametric test for group comparison (Mann-Whitney U) and Spearman's rho correlation.

From March 2014 to October 2017: 2054 responses (32 reported ages outside of 18-65 or undeclared) from Africa, Asia, Australasia/Oceania, Europe, and North and South America. Responses: 1,648 female, 364 male, (10 reported as both), median age 34, (range 18-65, mean 37.12, SD 12.40) years. Total EAT-10 scores: median 0 (range 0-36, mean 1.57, SD 3.49). EAT-10 score ≥ 3 (337) median 5 (range 3-36, mean 7.02 SD 5.91). Median age 36 (range 19-65, mean 37.81, SD 13.21) years. Declared sex was not statistically significantly associated with non-pathological vs. pathological EAT-10 score (p = 0.665). Female scores (median 0.00, mean 1.56, SD 3.338) were significantly higher than for males (median 0.00, mean 1.62, SD 4.161): U (Nfemale = 1648, Nmale = 364) = 275,420.000, z = - 2.677, p = 0.007. Age and EAT-10 score were not associated: females r_s = - 0.043, p = 0.079, N = 1648, males r_s = - 0.003, p = 0.952, N = 364. Considerable impact on people: "I take ages to eat a main course … This is embarrassing and I often leave food even though I am still hungry." (no diagnosis, EAT-10 = 17).

Concerns regarding swallowing exist in people undiagnosed with dysphagia, who may feel uncomfortable seeking professional help. Dysphagia may be under reported resulting in a hidden population. Subtle changes are currently seen as subtle markers of COVID-19. Further work is required to ensure that what is an essentially normal swallow does not become medicalized.