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. 2021 Apr 28;373:n741. doi: 10.1136/bmj.n741

Table 4.

Parents’ concerns about child development at 5½ years by gestational age group among survivors in the EPIPAGE-2 study. Values are percentages (95% confidence interval). Observed and imputed data*

Parents’ concerns about child development Preterm children Reference sample born at term
24-26 weeks 27-31 weeks 32-34 weeks P for trend†
No/total No,
% (95% CI)
Multiple imputation (%; (95% CI)) No/total No,
% (95% CI)
Multiple imputation (%; (95% CI)) No/total No,
% (95% CI)
Multiple imputation (%; (95% CI))
No 364 1814 724
Speech 20.9 (16.8 to 25.4) 24.1 (19.4 to 28.7) 15.2 (13.6 to 16.9) 17.5 (15.5 to 19.4) 13.9 (11.5 to 16.6) 15.6 (12.7 to 18.4) 0.002 14.9 (10.4 to 20.3)
Coordination 16.3 (12.7 to 20.6) 17.6 (13.7 to 21.4) 11.6 (10.1 to 13.1) 12.4 (10.5 to 14.3) 4.8 (3.3 to 6.6) 5.4 (3.5 to 7.3) <0.001 4.4 (2.0 to 8.5)
Learning 25.6 (21.2 to 30.4) 28.6 (24.1 to 33.1) 18.6 (16.8 to 20.4) 20.4 (18.1 to 22.7) 9.7 (7.7 to 12.1) 11.1 (8.5 to 13.6) <0.001 9.7 (6.2 to 14.2)
Behaviour 41.4 (36.3 to 46.6) 44.5 (39.6 to 49.4) 29.4 (27.4 to 31.6) 31.6 (29.3 to 33.9) 21.3 (18.4 to 24.4) 23.2 (20.2 to 26.2) <0.001 25.4 (20.1 to 31.3)
At least one concern
202/364, 55.5 (50.2 to 60.7) 57.4 (52.6 to 62.2) 742/1814, 40.9 (38.6 to 43.2) 42.8 (40.4 to 45.2) 222/724, 30.7 (27.3 to 34.2) 32.9 (29.3 to 36.5) <0.001 32.8 (27.1 to 39.0)
By group of NDD‡:
 Severe NDD 92.3 (74.9 to 99.1) 88.0 (78.1 to 97.8) 82.7 (72.7 to 90.2) 84.0 (76.6 to 91.5) 100 (-) 83.4 (66.6 to 100) 0.48 100 (–)
 Moderate NDD 81.6 (65.7 to 92.3) 79.9 (69.1 to 90.6) 66.9 (58.6 to 74.5) 68.6 (62.4 to 74.7) 56.4 (39.6 to 72.2) 57.9 (45.3 to 70.5) 0.012 90.2 (53.3 to 99.8)
 Mild NDD 63.0 (54.0 to 71.4) 60.5 (52.7 to 68.3) 52.5 (48.2 to 56.8) 50.2 (46.4 to 54.0) 48.5 (41.3 to 55.7) 44.5 (38.5 to 50.4) 0.002 52.5 (38.6 to 66.0)
 None 33.1 (25.0 to 42.0) 32.6 (24.8 to 40.3) 24.0 (21.1 to 27.1) 24.1 (21.2 to 27.1) 18.6 (14.8 to 22.9) 18.9 (15.2 to 22.6) <0.001 21.3 (15.9 to 27.5)

NDD=neurodevelopmental disabilities.

*

For preterm born children, results of both observed data and imputed data are reported. For term born children (37-41 weeks), data are weighted using calibration weighting (web appendix 1).

Test for linear trend across gestational age groups, after multiple imputation. Test based on generalised estimating equations to account for non-independence of outcomes related to multiple births.

Include cerebral palsy, vision, hearing, full scale intelligence quotient, developmental coordination disorders, and behavioural difficulties (table 1).