SDB Sleep-Disordered Breathing; NS Not Significant

Supplementary Table 1Changes in SDB-related symptoms from Age 3 to Age 7 (excluding 56 that were treated) (n = 403)

Habitual snorers at age 3 (n = 54) / Non habitual snorers at age 3 (n = 349)
Direction of change / Direction of change
Symptoms / Worse (%) / Same (%) / Improved (%) / p Value / Worse (%) / Same (%) / Improved (%) / p Value
Snoring / 7 (13.5) / 11 (21.2) / 34 (65.4) / <0.0001 / 27 (7.8) / 251 (72.1) / 70 (20.1) / <0.0001
Gasping / 1 (2.0) / 35 (70.0) / 14 (28.0) / <0.0001 / 1 (0.3) / 331 (95.9) / 13 (3.8) / 0.003
Choking noises / - / 37 (74.0) / 13 (26.0) / - / 1 (0.3) / 338 (97.7) / 7 (2.0) / 0.07
Sweat profusely / 4 (7.5) / 30 (56.6) / 19 (35.8) / 0.003 / 13 (3.8) / 264 (76.6) / 69 (19.9) / <0.0001
Night waking / 5 (9.4) / 12 (22.6) / 36 (67.9) / <0.0001 / 19 (5.5) / 132 (37.9) / 197 (56.6) / <0.0001
Neck extended in sleep / 5 (9.8) / 26 (51.0) / 20 (39.2) / 0.005 / 11 (3.3) / 24/ (73.6) / 78 (23.1) / <0.0001
Daytime sleepiness / 3 (5.7) / 18 (34.0) / 32 (60.4) / <0.0001 / 6 (1.7) / 176 (50.6) / 166 (47.7) / <0.0001
Morning headaches / 1 (1.9) / 48 (90.6) / 4 (7.5) / NS / 2 (0.6) / 340 (98.0) / 5 (1.4) / NS
Mouth breathing / 6 (11.8) / 19 (37.3) / 26 (51.0) / <0.001 / 39 (12.2) / 170 (53.3) / 110 (34.5) / <0.0001
Irritability / 7 (13.2) / 15 (28.3) / 31 (58.5) / <0.001 / 44 (12.7) / 131 (37.9) / 171 (49.4) / <0.0001
Hyperactivity / 3 (5.8) / 29 (55.8) / 20 (38.5) / <0.001 / 44 (12.7) / 200 (57.6) / 103 (19.7) / <0.0001

SDB sleep-disordered breathing; NS not significant.

-- numbers too small for McNemar’s test to be conducted.