Table 3.
Collapse Pattern and Degree Among Different FTP Grades
| Site | Pattern | Degree | FTP I | FTP II | FTP III | FTP IV | P-value |
|---|---|---|---|---|---|---|---|
| (n=23) | (n=48) | (n=95) | (n=39) | ||||
| n (%) | n (%) | n (%) | n (%) | ||||
| V | AP | 0 | 1(4.3%) | 5(10.4%) | 3(3.2%) | 2(5.1%) | |
| 1 | 4(17.4%) | 4(8.3%) | 7(7.4%) | 0(0%) | |||
| 2 | 8(34.8%) | 25(52.1%) | 47(49.5%) | 16(41%) | 0.144 | ||
| L | 0 | 0(0%) | 0(0%) | 0(0%) | 0(0%) | ||
| 1 | 1(4.3%) | 0(0%) | 1(1.1%) | 0(0%) | |||
| 2 | 2(8.7%) | 0(0%) | 4(4.2%) | 0(0%) | 0.143 | ||
| C | 0 | 0(0%) | 0(0%) | 0(0%) | 1(2.6%) | ||
| 1 | 3(13%) | 3(6.3%) | 1(1.1%) | 1(2.6%) | |||
| 2 | 4(17.4%) | 11(22.9%) | 32(33.7%) | 19(48.7%) | 0.014 | ||
| O | L | 0 | 8(34.8%) | 19(39.6%) | 25(26.3%) | 8(20.5%) | |
| 1 | 7(30.4%) | 19(39.6%) | 38(40%) | 10(25.6%) | |||
| 2 | 8(34.8%) | 10(20.8%) | 32(33.7%) | 21(53.8%) | 0.061 | ||
| T | AP | 0 | 6(26.1%) | 15(31.3%) | 22(23.2%) | 9(23.1%) | |
| 1 | 7(30.4%) | 13(27.1%) | 43(45.3%) | 19(48.7%) | |||
| 2 | 10(43.5%) | 20(41.7%) | 30(31.6%) | 11(28.2%) | 0.342 | ||
| E | AP | 0 | 16(69.6%) | 33(68.8%) | 61(64.2%) | 26(66.7%) | |
| 1 | 0(0%) | 2(4.2%) | 9(9.5%) | 6(15.4%) | |||
| 2 | 6(26.1%) | 11(22.9%) | 24(25.3%) | 6(15.4%) | |||
| L | 0 | 0(0%) | 0(0%) | 0(0%) | 0(0%) | ||
| 1 | 0(0%) | 1(2.1%) | 0(0%) | 1(2.6%) | |||
| 2 | 1(4.3%) | 1(2.1%) | 1(1.1%) | 0(0%) | 0.337 |
Notes: 0, no collapse with 0% to 50% lumen reduction; 1, partial collapse with 50% to 75% lumen reduction; 2, complete collapse with 75% to 100% lumen reduction.
Abbreviations: FTP, Friedman tongue position; I, uvula and tonsils completely visible; II, visible uvula but not tonsils; III, visible soft palate, but not uvula; IV, visible hard palate only; V, velum; O, oropharynx; T, tongue base; E, epiglottis; AP, anterior-posterior; L, lateral; C, concentric.