Research Article

Measurement and Analysis of Central Corneal Thickness at Different Postnatal Stages in Chinese Premature Infants

Table 4

Mean CCT of different BWs at each PMA.

PMABWt
<1500 g>1500 g
CCT (μm)NCCT (μm)N

34 w619.10 ± 59.59220590.78 ± 52.493045.76<0.0001
36 w605.28 ± 58.34313579.33 ± 49.634106.45<0.0001
38 w591.01 ± 53.64284572.95 ± 48.123014.29<0.0001
40 w574.83 ± 54.58213555.98 ± 48.213184.18<0.0001
42 w554.42 ± 47.82144549.11 ± 44.051490.990.32
44 w551.55 ± 48.0888543.56 ± 41.94701.090.27
46 w542.00 ± 41.9771530.71 ± 45.97771.560.12
48 w540.37 ± 36.3667534.33 ± 38.26460.850.40
52 w538.00 ± 36.7975526.92 ± 40.64751.750.08
64 w530.50 ± 39.2964522.43 ± 44.07420.990.33
76 w531.56 ± 30.5339521.53 ± 36.85301.240.22
88 w534.215 ± 39.3538523.15 ± 35.75271.160.25

PMA: postmenstrual age; N: number of infants; CCT: central corneal thickness; BW: birth weight.