From: Associations between gestational age and childhood sleep: a national retrospective cohort study
 | Sleep disorder (CSHQ>41) | |||||||
---|---|---|---|---|---|---|---|---|
N, % | Crude OR (95% CI) | p | p* | Adjusted ORa (95% CI) | p | p* | ||
Yes | No | |||||||
Total | 87,773, 76.78% | 26,538, 23.22% | Â | Â | Â | Â | Â | Â |
 Very-preterm(<31W) | 1932, 81.21% | 447, 18.79% | 1.322 (1.188, 1.47) | <0.001 | <0.001 | 1.287 (1.157, 1.433) | <0.001 | <0.001 |
 Moderate-preterm(32–33W) | 1527, 80.67% | 366, 19.33% | 1.276 (1.135, 1.435) | <0.001 | <0.001 | 1.249 (1.110, 1.405) | <0.001 | <0.001 |
 Late-preterm (34–36W) | 8049, 78.62% | 2189, 21.38% | 1.125 (1.065, 1.188) | <0.001 | <0.001 | 1.111 (1.052, 1.174) | <0.001 | <0.001 |
 Early-term (37–38W) | 22,345, 76.58% | 6834, 23.42% | 0.97 (0.938, 1.002) | 0.069 | 0.828 | 0.958 (0.927, 0.991) | 0.012 | 0.014 |
 Full-term (39–40W) | 44,126, 76.02% | 13917, 23.98% | Reference |  |  | Reference |  |  |
 Late-term (41–41W) | 5390, 76.82% | 1626, 23.18% | 1.014 (0.953, 1.078) | 0.663 | 0.663 | 0.976 (0.917, 1.039) | 0.451 | 0.451 |
 Post-term (>41W) | 4404, 79.17% | 1159, 20.83% | 1.162 (1.083, 1.247) | <0.001 | <0.001 | 1.139 (1.061, 1.222) | <0.001 | <0.001 |
3 years old | 29,658, 78.40% | 8165, 21.60% | Â | Â | Â | Â | Â | Â |
 Very-preterm(<31W) | 599, 82.51% | 127, 17.49% | 1.308 (1.074, 1.594) | 0.008 | 0.048 | 1.267 (1.039, 1.545) | 0.019 | 0.114 |
 Moderate-preterm(32–33W) | 435, 82.08% | 95, 17.92% | 1.27 (1.012, 1.594) | 0.039 | 0.078 | 1.24 (0.987, 1.558) | 0.065 | 0.195 |
 Late-preterm (34–36W) | 2377, 78.66% | 645, 21.34% | 1.022 (0.925, 1.129) | 0.667 | 0.667 | 0.996 (0.901, 1.100) | 0.930 | 0.930 |
 Early-term (37–38W) | 7691, 78.29% | 2133, 21.71% | 0.981 (0.925, 1.04) | 0.523 | 0.667 | 0.968 (0.912, 1.027) | 0.277 | 0.415 |
 Full-term (39–40W) | 15,317, 77.96% | 4330, 22.04% | Reference |  |  | Reference |  |  |
 Late-term (41–41W) | 1918, 78.77% | 517, 21.23% | 1.029 (0.923, 1.147) | 0.606 | 0.667 | 0.985 (0.883, 1.099) | 0.787 | 0.930 |
 Post-term (>41W) | 1321, 80.60% | 318, 19.40% | 1.152 (1.01, 1.314)* | 0.035 | 0.078 | 1.111 (0.974, 1.269) | 0.118 | 0.236 |
4 years old | 33,962, 77.46% | 9885, 22.54% | Â | Â | Â | Â | Â | Â |
 Very-preterm(<31W) | 772, 82.30% | 166, 17.70% | 1.352 (1.137, 1.608) | 0.001 | 0.002 | 1.295 (1.088, 1.542) | 0.004 | 0.008 |
 Moderate-preterm(32–33W) | 636, 82.81% | 132, 17.19% | 1.401 (1.155, 1.699) | 0.001 | 0.002 | 1.35 (1.112, 1.639) | 0.002 | 0.006 |
 Late-preterm (34–36W) | 3120, 80.21% | 770, 19.79% | 1.178 (1.076, 1.29) | <0.001 | <0.001 | 1.155 (1.055, 1.266) | 0.002 | 0.006 |
 Early-term (37–38W) | 8520, 77.48% | 2477, 22.52% | 0.942 (0.892, 0.995) | 0.031 | 0.0372 | 0.931 (0.882, 0.984) | 0.011 | 0.016 |
 Full-term (39–40W) | 17,022, 76.41% | 5254, 23.59% | Reference |  |  | Reference |  |  |
 Late-term (41–41W) | 2140, 77.01% | 639, 22.99% | 0.974 (0.882, 1.075) | 0.597 | 0.597 | 0.945 (0.855, 1.045) | 0.269 | 0.269 |
 Post-term (>41W) | 1752, 79.67% | 447, 20.33% | 1.139 (1.018, 1.276) | 0.024 | 0.036 | 1.097 (0.979, 1.229) | 0.111 | 0.133 |
5 years old | 24,153, 74.00% | 8488, 26.00% | Â | Â | Â | Â | Â | Â |
 Very-preterm(<31W) | 561, 78.46% | 154, 21.54% | 1.321 (1.098, 1.589) | 0.003 | 0.006 | 1.293 (1.074, 1.557) | 0.007 | 0.014 |
 Moderate-preterm(32–33W) | 456, 76.64% | 139, 23.36% | 1.189 (0.978, 1.447) | 0.083 | 0.1245 | 1.155 (0.949, 1.407) | 0.151 | 0.226 |
 Late-preterm (34–36W) | 2552, 76.73% | 774, 23.27% | 1.195 (1.088, 1.313) | <0.001 | <0.001 | 1.172 (1.066, 1.288) | 0.001 | 0.006 |
 Early-term (37–38W) | 6134, 73.39% | 2224, 26.61% | 0.986 (0.929, 1.047) | 0.651 | 0.651 | 0.979 (0.922, 1.04) | 0.491 | 0.589 |
 Full-term (39–40W) | 11,787, 73.12% | 4333, 26.88% | Reference |  |  | Reference |  |  |
 Late-term (41–41W) | 1332, 73.92% | 470, 26.08% | 1.028 (0.915, 1.154) | 0.646 | 0.651 | 1.002 (0.892, 1.126) | 0.975 | 0.975 |
 Post-term (>41W) | 1331, 77.16% | 394, 22.84% | 1.225 (1.084, 1.384) | 0.001 | 0.003 | 1.209 (1.069, 1.368) | 0.002 | 0.006 |