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Table 1 Immunoreactive trypsin values (in ng/ml) in newborn screening

From: Differences in immunoreactive trypsin values between type of feeding and ethnicity in neonatal cystic fibrosis screening: a cross-sectional study

Variable

Mean (SD)

95% CI

Percentile 95

Percentile 99

*Gender:

    

Male

21.5(13.7)

21.2-21.8

44.2

68.7

Female

22.8(13.5)

22.5-23.1

47.2

71.2

*Maternal origin:

    

Spain

22.2(13.7)

21.9-22.4

45.6

69.3

Africa

24.0(17.2)

23.0-25.1

54.0

94.8

South America

20.8(11.3)

20.1-21.5

41.7

63.6

Rest of Europe

22.3(12.6)

21.5-23.0

45.6

71.6

Asia

20.1(12.1)

18.9-21.4

46.2

69.3

**Maternal age (y):

    

<20

23.8(13.2)

22.5-25.1

52.0

73.3

20-40

22.1(13.7)

21.9-22.3

45.7

69.6

>40

22.9(14.2)

21.7-24.2

47.9

70.6

*Gestational age (w):

    

<32

25.0(16.7)

23.2-26.8

53.9

83.0

32-37

23.2(11.7)

22.5-24.0

46.6

65.9

>37

22.0(13.8)

21.8-22.3

45.4

69.5

*Feeding methods:

    

Natural

22.2(14.3)

21.9-22.4

46.1

71.5

Mixed

21.9(12.0)

21.4-22.4

44.0

62.8

Formula

22.2(12.4)

21.8-22.7

45.3

65.1

Special

53.3(52.9)

29.2-77.4

234.6

nd

*Extraction (d):

    

<20

22.2(13.9)

22.0-22.5

46.1

70.3

≥20

15.4(19.8)

10.3-20.6

48.0

nd

  1. *Kruskal-Wallis test (p < 0.001); **Kruskal-Wallis test (p < 0.01).
  2. nd: not determined.
  3. 2012-2013 data for a Spanish region.