Table 2.
Comparison of Parasomnia Symptoms Between Gestational Age Groups, and of Respiratory Allergic Groups in the Preterm Group
| Full-Term (n = 15,099) | Preterm | No Symptom (N = 6955) | Current Wheeze (N = 2086) | Ever Asthma (N = 2338) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Moderately Preterm 33–36 Wk (n = 962) | Very Preterm ≤ 32 Wk (n = 426) | ||||||||
| N (%) | N (%) | N (%) | χ2 (p-value) | N (%) | N (%) | χ2 (p-value) | N (%) | χ2 (p-value) | |
| NREM | |||||||||
| Sleep Walking | 478 (3.2) | 32 (3.3) | 35 (8.2) | 33.060 (<.001) | 282 (4.1%) | 73 (3.5%) | 1.311 (0.252) | 75 (3.2%) | 3.396(0.065) |
| Sleep Terror | 1508 (10.0) | 116 (12.1) | 63 (14.8) | 14.106 (0.001) | 602 (8.7%) | 319 (15.3%) | 77.255 (<.001) | 333 (14.2%) | 60.365 (<.001) |
| REM | |||||||||
| Sleep Talking | 1938 (12.8) | 126 (13.1) | 81 (19.0) | 13.98 (0.001) | 765 (11.0%) | 348 (16.7%) | 48.015 (<.001) | 343 (14.7%) | 22.459 (<.001) |
| Sleep Restless | 3997 (26.5) | 260 (27.0) | 122 (28.6) | 1.111 (0.574) | 1459 (21.0%) | 773 (37.1%) | 223.131 (<.001) | 763 (32.6%) | 130.692 (<.001) |
| Nightmare | 968 (6.4) | 65 (6.8) | 59 (13.8) | 37.098 (<.001) | 444 (6.4%) | 182 (8.7%) | 13.645 (<.001) | 194 (8.3%) | 10.023 (0.002) |
| Others | |||||||||
| Bruxism | 3238 (21.4) | 231 (24.0) | 115 (27.0) | 10.607 (0.005) | 1277 (18.4%) | 596 (28.6%) | 101.857 (<.001) | 612 (26.2%) | 65.992 (<.001) |
| Enuresis | 910 (6.0) | 62 (6.4) | 46 (10.8) | 16.409 (001) | 440 (6.3%) | 158 (7.6%) | 4.046 (0.044) | 164 (7.0%) | 1.364 (0.243) |
| Parasomnia | 23.615 (<.001) | 297.778 (<.001) | 225.979 (<.001) | ||||||
| 0 | 8652 (56.7) | 528 (54.9) | 239 (56.1) | 4466 (64.2%) | 924 (44.3%) | 1115 (47.7%) | |||
| 1 symptom | 3530 (23.1) | 215 (22.3) | 69 (16.2) | 1400 (20.1%) | 546 (26.2%) | 586 (25.1%) | |||
| ≥ 2 symptoms | 3071 (20.1) | 219 (22.8) | 118 (27.7) | 1089 (15.7%) | 616 (29.5%) | 637 (27.2%) | |||
Notes: Statistically significant results (p < 0.05) are in bold.
Abbreviations: REM, rapid eye movement; NREM, non-rapid eye movement; wk, week.