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Table 8 Laryngoscopy findings associated with the SP sign

From: Clinical analysis of the “small plateau” sign on the flow-volume curve followed by deep learning automated recognition

Parameter SP sign (+)
(n = 16)
SP sign (−)
(n = 32)
P value
Age, years 44.2 ± 3.1 50.0 ± 3.0 .223
Sex, n (%)    .147
 Male 7 (44%) 21 (66%)  
 Female 9 (56%) 11 (34%)  
BMI, kg/m2 25.0 ± 1.0 22.5 ± 0.8 .060
Smoking status, n (%)    .404
 Current or former smoker 5 (31%) 14 (44%)  
 Never smoker 11 (69%) 18 (56%)  
Laryngoscopy finding, n (%)    
 Epiglottis cyst 2 (13%) 0 (0%) .106
 Vocal cord/throat nodule/tumor 4 (25%) 7 (22%) 1.000
 Hypertrophy of tonsils/adenoids 4 (25%) 3 (9%) .195
 Chronic pharyngitis/normal 6 (37%) 22 (69%) .038
  1. Data are presented as absolute numbers (percentages) in case of frequencies unless otherwise noted