Table 4. Clinical variables in respondent and non-respondents to the use of the head-positioning pillow.
|
Subjective snoring severity |
Objective snoring index |
|||||
|---|---|---|---|---|---|---|
| No response (n = 16) | Response (n = 9) | p value | No response (n = 12) | Response (n = 13) | p value | |
| Age, years | 46.0 (32.0, 52.5) | 49.0 (32.0, 55.5) | 0.890 | 43.5 (33.0, 52.5) | 49.0 (31.5, 54.5) | 0.689 |
| Sex (male, %) | 14 (88) | 7 (78) | 0.602 | 10 (83) | 11 (85) | 1.000 |
| Body mass index, kg/m2 | 24.6 (23.2, 26.4) | 25.2 (21.8, 26.6) | 0.846 | 24.8 (22.6, 26.2) | 24.0 (23.2, 26.3) | 0.769 |
| Neck circumference, cm | 37.9 (36.0, 40.0) | 38.0 (32.5, 40.0) | 0.718 | 38.8 (36.0, 40.0) | 37.8 (35.0, 39.8) | 0.574 |
| Snoring severity | 6.0 (5.0, 8.0) | 5.0 (3.0, 5.5) | 0.010 | 5.0 (4.0, 8.0) | 6.0 (5.0, 7.5) | 0.728 |
| SOS | 41.9 (37.6, 51.5) | 55.0 (42.1, 58.0) | 0.108 | 43.8 (39.6, 58.0) | 47.1 (38.1, 58.0) | 0.689 |
| ESS | 9.0 (5.0,12.0) | 10.0 (6.5, 13.0) | 0.598 | 8.0 (5.0, 12.0) | 10.0 (7.0, 12.5) | 0.347 |
| Tonsil size | 1.0 (1.0, 2.0) | 1.0 (1.0, 1.5) | 1.000 | 1.0 (1.0, 2.0) | 1.0 (1.0, 1.0) | 0.137 |
| FPP | 2.0 (1.0, 2.0) | 2.0 (1.5, 2.5) | 0.452 | 2.0 (1.0, 2.0) | 2.0 (1.0, 2.0) | 1.000 |
| S-Retropalatal-ColTD (%)A | 31.4 (16.7, 52.2) | 14.4 (10.2, 51.3) | 0.276 | 32.4 (15.5, 53.4) | 17.0 (11.7, 51.2) | 0.437 |
| S-Retropalatal-ColLD (%)A | 34.2 (11.4, 63.2) | 20.3 (−0.2, 41.9) | 0.452 | 24.5 (4.2, 42.5) | 28.3 (17.4, 67.5) | 0.347 |
| S-Retroglossal-ColTD (%)A | 15.5 (5.9, 29.2) | 12.9 (7.8, 19.2) | 0.637 | 14.5 (12.4. 39.8) | 14.2 (2.0, 21.3) | 0.225 |
| S-Retroglossal-ColLD (%)A | −6.8 (−32.5, 2.1) | 4.0 (−9.5, 27.8) | 0.049 | 3.0 (−7.4, 21.3) | −8.7 (−50.9, 12.8) | 0.087 |
| L-Retropalatal-ColTD (%)A | 36.4 (15.6, 47.3) | 37.6 (23.7, 49.3) | 0.718 | 39.3 (23.4, 49.2) | 33.3 (17.7, 46.9) | 0.769 |
| L-Retropalatal-ColLD (%)A | 32.9 (8.9, 56.1) | 1.0 (−19.2, 35.5) | 0.074 | 6.8 (−15.2, 47.8) | 29.9 (10.3, 55.7) | 0.295 |
| L-Retroglossal-ColTD (%)A | 9.3 (7.9, 20.4) | 15.5 (5.1, 27.4) | 0.890 | 15.2 (8.5, 31.3) | 8.4 (4.2, 19.1) | 0.186 |
| L-Retroglossal-ColLD (%)A | −2.5 (−21.3, 0.9) | 5.7 (−12.6, 28.0) | 0.187 | −1.6 (−21.7, 23.8) | −0.5 (−18.9, 5.0) | 1.000 |
| AHItotal, events/h | 6.8 (5.5, 13.5) | 7.4 (5.2, 17.0) | 0.890 | 7.0 (5.8, 8.5) | 7.0 (5.2, 15.6) | 0.936 |
| AHIsupine: AHInonsupine ratio | 7.0 (2.7, 18.4) | 2.7 (2.2, 16.5) | 0.229 | 2.7 (2.3, 18.4) | 10.1 (3.2, 19.6) | 0.098 |
| ODI, events/h | 6.3 (3.6, 10.5) | 6.8 (2.6, 12.1) | 0.718 | 5.9 (4.0 m 7.6) | 7.8 (2.6, 11.1) | 0.979 |
| N2_Discomfort score | 4.0 (2.0, 5.0) | 1.0 (0.5, 2.5) | 0.014 | 2.0 (1.0, 4.0) | 3.0 (2.0, 4.5) | 0.331 |
| N2_Total sleep time, h | 6.6 (5.4, 7.5) | 6.3 (5.9, 6.7) | 0.677 | 6.3 (5.3, 6.8) | 6.4 (5.9, 7.5) | 0.852 |
Note: Continuous data are expressed as medians and interquartile ranges, whereas categorical data are given as counts and percentages. AHI, apnea-hypopnea index; ColLD, collapsibility of longitudinal dimension; ColTD, collapsibility of transverse dimension; ESS, Epworth Sleepiness Scale; FPP, Friedman palatal position; L, lateral position; ODI, oxygen desaturation index; S, supine position; SOS, Snoring Outcomes Survey.
ACollapsibility was measured in the supine position using the head-positioning pillow.