Table 3.
Characteristics of the study population after 20-year follow-up categorized according to AHI tertiles obtained at T0.
| Characteristics | First Tertile AHI (10–13 events/h) | Second Tertile AHI (13–20 events/h) | Third Tertile AHI (> 20 events/h) | P |
|---|---|---|---|---|
| n | 35 | 31 | 34 | |
| Age, y, mean (SD) | 23.63 (3.61) | 23.45 (3.94) | 23.65 (4.63) | .978 |
| Height, cm, mean (SD) | 169.54 (10.83) | 170.77 (9.85) | 171.3 (10.01) | .756 |
| Weight, kg, mean (SD) | 65.74 (10.83) | 66.10 (15.20) | 72.09 (16.42) | .128 |
| BMI, kg/m2, mean (SD) | 22.93 (3.76) | 22.88 (4.90) | 24.39 (3.85) | .248 |
| Obesity, n (%) | 1 (2.86) | 4 (12.90) | 3 (8.82) | .316 |
| Education | 24 (68.57) | 22 (70.97) | 22 (64.71) | .861 |
| Snoring, n (%) | 11 (31.43) | 9 (29.03) | 17 (50.00) | .151 |
| Your snoring is: | .256 | |||
| Slightly louder than breathing, n (%) | 8 (66.67) | 3 (33.33) | 6 (35.29) | |
| Louder than talking, n (%) | 2 (16.67) | 6 (66.67) | 8 (47.06) | |
| As loud as talking, n (%) | 2 (16.67) | 0 (0.00) | 3 (17.76) | |
| How often do you snore? | .124 | |||
| 1–2 times/wk, n (%) | 3 (25.00) | 4 (44.44) | 4 (23.53) | |
| 3–4 times/wk, n (%) | 8 (66.67) | 1 (11.11) | 8 (47.06) | |
| Almost every day, n (%) | 1 (8.33) | 4 (44.44) | 5 (29.41) | |
| Has your snoring ever bothered other people? | 4 (33.33) | 6 (66.67) | 9 (52.94) | .302 |
| Has anyone noticed that you stop breathing during sleep? | .558 | |||
| 1–2 times/wk, n (%) | 2 (5.71) | 3 (9.68) | 4 (11.76) | |
| 1–2 times/mo, n (%) | 0 (0.00) | 0 (0.00) | 1 (2.94) | |
| 3–4 times/wk, n (%) | 0 (0.00) | 0 (0.00) | 1 (2.94) | |
| Rarely or never, n (%) | 33 (94.29) | 28 (90.32) | 28 (82.35) | |
| Berlin questionnaire score ≥ 2, n (%) | 0 (0.00) | 1 (3.23) | 7 (20.59) | .003 |
| Treatments | ||||
| Adenotonsillectomy, n (%) | 23 (65.71) | 20 (64.52) | 21 (61.76) | .941 |
| Tonsillectomy, n (%) | 1 (2.86) | 1 (3.23) | 4 (11.76) | .219 |
| Adenoidectomy, n (%) | 7 (20.00) | 7 (22.58) | 6 (17.65) | .884 |
| No treatment, n (%) | 4 (11.43) | 3 (9.68) | 3 (8.82) | .935 |
| Cardiovascular sequelae, n (%) | 1 (2.86) | 1 (3.23) | 5 (14.71) | .095 |
AHI = apnea-hypopnea index, BMI = body mass index, SD = standard deviation, T0 = baseline (time zero).