Table 2

Prevalence of impaired motor performance, as assessed by the Movement ABC, in VLBW children with impaired visual function

Prevalence of motor impairment (ABC score >13) by groupχ2P value
ImpairedNormal
Acuity:
 at 6 m12/23 (56%)23/112 (20%)9.90.002
 at 0.3 m10/19 (53%)26/117 (22%)7.80.005
Squint8/13 (61%)27/122 (22%)9.40.002
Refractive error14/31 (45%)22/105 (21%)7.20.007
Stereopsis20/50 (40%)15/85 (18%)8.20.004
Contrast sensitivity (CPD=cycles per degree):
 at 1.5 CPD9/21 (43%)27/114 (24%)3.30.07
 at 3 CPD10/23 (43%)26/112 (23%)4.00.04
 at 6 CPD21/40 (52%)15/95 (16%)19.4<0.0000
 at 12 CPD21/44 (48%)15/91 (16%)14.80.0001
 at 18 CPD24/50 (48%)12/85 (14%)18.4<0.0000