Table 3.

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

Items	Validation group (n=1645)	Sensitivity (95% CI)	Specificity (95% CI)	Positive likelihood ratio (95% CI)
Neurosensory function and spontaneous activity during assessment
Spontaneous motor activity	19	0.05 (0.02 to 0.09)	0.99 (0.99 to 0.99)	6.11 (2.50 to 14.98)
Response to voice	43	0.07 (0.04 to 0.12)	0.98 (0.98 to 0.98)	3.64 (1.94 to 6.85)
Visual fixing and tracking	179	0.18 (0.13 to 0.24)	0.90 (0.88 to 0.91)	1.76 (1.24 to 2.50)
Social interaction	48	0.08 (0.05 to 0.13)	0.98 (0.97 to 0.98)	3.46 (1.90 to 6.31)
Excitability	28	0.05 (0.03 to 0.09)	0.99 (0.99 to 0.99)	3.98 (1.83 to 8.66)
Passive tone
Upper limbs recoil	78	0.08 (0.05 to 0.13)	0.96 (0.95 to 0.97)	1.84 (1.05 to 3.21)
Lower limbs recoil	55	0.06 (0.03 to 0.10)	0.97 (0.96 to 0.98)	1.87 (0.96 to 3.64)
Comparison of curvatures	42	0.09 (0.06 to 0.14)	0.98 (0.98 to 0.99)	5.17 (2.83 to 9.45)
Active tone
Pull to sit manoeuvre	187	0.18 (0.13 to 0.24)	0.89 (0.88 to 0.91)	1.67 (1.17 to 2.37)
Righting reaction	51	0.06 (0.03 to 0.10)	0.97 (0.97 to 0.98)	2.05 (1.05 to 4.02)
Others
Adaptedness during assessment	132	0.19 (0.05 to 0.14)	0.97 (0.97 to 0.98)	7.32 (1.05 to 4.02)
Non-nutritive sucking/feeding autonomy	54	0.09 (0.05 to 0.14)	0.97 (0.96 to 0.98)	3.23 (1.81 to 5.73)
Head circumference	167	0.19 (0.14 to 0.26)	0.91 (0.89 to 0.92)	2.15 (1.52 to 3.02)
Items combination
One item or more	615	0.55 (0.47 to 0.62)	0.65 (0.62 to 0.67)	1.55 (1.33 to 1.81)
Three items or more	108	0.19 (0.14 to 0.25)	0.95 (0.94 to 0.96)	3.70 (2.53 to 5.40)