Danish register-based study population | ||||||||||
Maternal thyroid disordera | All CP (Noâ=â2798) | Unilateral Spastic CP (Noâ=â912) | Bilateral Spastic CP (Noâ=â1490) | |||||||
 | No | No | ORb (95% CI) | ORc (95% CI) | No | ORb (95% CI) | ORc (95% CI) | No | ORb (95% CI) | ORc (95% CI) |
No thyroid disorder | 1,246,454 | 2748 | 1 (ref.) | 1 (ref.) | 894 | 1 (ref.) | 1 (ref.) | 1465 | 1 (ref.) | 1 (ref.) |
Thyroid disorderd | 23,625 | 50 | 0.96 (0.73â1.27) | 0.99 (0.74â1.31) | 18 | 1.06 (0.67â1.69) | 0.93 (0.58â1.48) | 25 | 0.90 (0.61â1.34) | 1.03 (0.69â1.53) |
âHypothyroidism | 12,929 | 26 | 0.91 (0.62â1.34) | 0.95 (0.64â1.39) | 9 | 0.97 (0.50â1.87) | 0.83 (0.43â1.61) | 13 | 0.86 (0.50â1.48) | 1.01 (0.58â1.74) |
âHyperthyroidism | 9943 | 24 | 1.10 (0.73â1.64) | 1.11 (0.94â1.66) | 9 | 1.26 (0.65â2.43) | 1.13 (0.59â2.18) | 12 | 1.03 (0.58â1.81) | 1.13 (0.64â1.99) |
Identification of thyroid disorder | ||||||||||
No | 1,246,454 | 2748 | 1 (ref.) | 1 (ref.) | 894 | 1 (ref.) | 1 (ref.) | 1465 | 1 (ref.) | 1 (ref.) |
Before pregnancy | 9622 | 20 | 0.94 (0.61â1.46) | 0.97 (0.62â1.50) | 7 | 1.01 (0.48â2.13) | 0.86 (0.41â1.81) | 11 | 0.97 (0.54â1.76) | 1.13 (0.62â2.04) |
In pregnancy | 1551 | 7 | 2.05 (0.98â4.32) | 2.00 (0.95â4.21) | 4 | 3.60 (1.35â9.63) | 3.14 (1.17â8.42) | <4f | NE | NE |
†5 years after pregnancy | 12,452 | 23 | 0.84 (0.56â1.26) | 0.87 (0.58â1.31) | 7 | 0.78 (0.37â1.65) | 0.70 (0.33â1.48) | 12 | 0.82 (0.46â1.45) | 0.94 (0.53â1.66) |
MOBAND study population | ||||||||||
Maternal thyroid disorder in pregnancy | All CP (Noâ=â402) | |||||||||
 | No | No | ORb (95% CI) | ORc (95% CI) | ORe (95% CI) |  | ||||
No thyroid disorder | 189,876 | 394 | 1 (ref.) | 1 (Ref.) | 1 (ref.) | Â | ||||
Thyroid disorder | 3042 | 8 | 1.27 (0.63â2.55) | 1.18 (0.58â2.39) | 1.17 (0.58â2.38) | Â | ||||
âNo medicationg | 534 | 3 | 2.71 (0.87â8.46) | 2.54 (0.81â7.94) | 2.54 (0.81â7.93) | Â | ||||
âUse of medicationg | 2229 | 4 | 0.86 (0.32â2.30) | 0.82 (0.30â2.19) | 0.82 (0.30â2.19) | Â |