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Table 4 CI, DD, and incidence of PD in preterm infants with different CAs

From: Prevalence of positional skull deformities in 530 premature infants with a corrected age of up to 6 months: a multicenter study

Group

N

Plagiocephaly

Brachycephaly

Dolichocephaly

DD

CI

N

%

N

%

N

%

CA < 0

78

42

53.8%

58

74.4%

4

5.1%

0.492 ± 0.357

0.867 ± 0.073

0 ≤ CA ≤ 2 m

212

113

53.3%

172

81.1%

8

3.8%

0.463 ± 0.347a

0.937 ± 0.067a

3 ≤ CA ≤ 4 m

123

61

49.6%

112

91.1%

4

3.3%

0.409 ± 0.310ab

0.902 ± 0.066ab

5 ≤ CA ≤ 6 m

117

55

47.0%

109

93.2%

0

0%

0.342 ± 0.280abc

0.896 ± 0.057

  1. a: p < 0.05, compared with the CA < 0 m group; b: p < 0.05, compared with the 0 ≤ CA ≤ 2 m group; c: p < 0.05, compared with the 3 ≤ CA ≤ 4 m group
  2. CI, cranial index; DD, diagonal difference; CA, corrected age; N, number of cases; PD, positional deformity