Table 3

Sensitivity, specificity and positive likelihood ratio for predicting suboptimal neuromotor status at 2 years

ItemsValidation group (n=1645)Sensitivity (95% CI)Specificity (95% CI)Positive likelihood ratio (95% CI)
Neurosensory function and spontaneous activity during assessment
 Spontaneous motor activity190.05 (0.02 to 0.09)0.99 (0.99 to 0.99)6.11 (2.50 to 14.98)
 Response to voice430.07 (0.04 to 0.12)0.98 (0.98 to 0.98)3.64 (1.94 to 6.85)
 Visual fixing and tracking1790.18 (0.13 to 0.24)0.90 (0.88 to 0.91)1.76 (1.24 to 2.50)
 Social interaction480.08 (0.05 to 0.13)0.98 (0.97 to 0.98)3.46 (1.90 to 6.31)
 Excitability280.05 (0.03 to 0.09)0.99 (0.99 to 0.99)3.98 (1.83 to 8.66)
Passive tone
 Upper limbs recoil780.08 (0.05 to 0.13)0.96 (0.95 to 0.97)1.84 (1.05 to 3.21)
 Lower limbs recoil550.06 (0.03 to 0.10)0.97 (0.96 to 0.98)1.87 (0.96 to 3.64)
 Comparison of curvatures420.09 (0.06 to 0.14)0.98 (0.98 to 0.99)5.17 (2.83 to 9.45)
Active tone
 Pull to sit manoeuvre1870.18 (0.13 to 0.24)0.89 (0.88 to 0.91)1.67 (1.17 to 2.37)
 Righting reaction510.06 (0.03 to 0.10)0.97 (0.97 to 0.98)2.05 (1.05 to 4.02)
Others
 Adaptedness during assessment1320.19 (0.05 to 0.14)0.97 (0.97 to 0.98)7.32 (1.05 to 4.02)
 Non-nutritive sucking/feeding autonomy540.09 (0.05 to 0.14)0.97 (0.96 to 0.98)3.23 (1.81 to 5.73)
 Head circumference1670.19 (0.14 to 0.26)0.91 (0.89 to 0.92)2.15 (1.52 to 3.02)
Items combination
 One item or more6150.55 (0.47 to 0.62)0.65 (0.62 to 0.67)1.55 (1.33 to 1.81)
 Three items or more1080.19 (0.14 to 0.25)0.95 (0.94 to 0.96)3.70 (2.53 to 5.40)