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Table 4 Estimated prevalence of neurodevelopmental impairment under different MNAR scenarios

From: Strategies for assessing the impact of loss to follow-up on estimates of neurodevelopmental impairment in a very preterm cohort at 2 years of age

  delta exponential(delta) Portugal UK Total
Crude prevalence    16.5 [13.1;20.5] 20.0 [16.6;24.0] 18.4 [15.9;21.2]
MAR scenario    17.4 [13.4;21.4] 21.9 [17.9;26.0] 20.4 [17.3;23.4]
MNAR scenario −0.2 0.8 16.3 [12.5;20.0] 20.5 [16.6;24.3] 19.0 [16.2;21.8]
−0.1 0.9 16.6 [12.7;20.5] 21.0 [17.3;24.7] 19.5 [16.6;22.3]
0.1 1.1 17.5 [13.5;21.5] 22.9 [18.6;27.6] 21.0 [18.0;24.1]
0.2 1.2 18.0 [13.9;22.1] 23.7 [19.4;28.0] 21.7 [18.7;24.8]
0.3 1.4 18.7 [14.5;22.9] 25.1 [20.5;29.7] 22.9 [19.4;26.3]
0.4 1.5 19.0 [15.0;23.0] 26.1 [21.3;30.8] 23.6 [20.1;27.1]