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Table 1 Characteristics and CFTR response of pancreatic insufficient (CF-PI) and pancreatic sufficient (CF-PS) patients with CF and controls

From: Intestinal current measurement versus nasal potential difference measurements for diagnosis of cystic fibrosis: a case–control study

 

CF-PI (n = 12)

CF-PS (n = 6)

CF-all (n = 18)

Controls (n = 13)

Age, years

24.0 ± 6.1

23.3 ± 11.8

22.8 ± 8.0

30.6 ± 10.4

 

22.0 (19.0 – 26.0)

16.0 (14.5 – 30.5)

20.5 (18.3 – 25.3)

25.0 (23.5 – 35.5)

Gender, females:males

3:9

5:1

8:10

7:6

Body mass index Z-score

-1.18 ± 0.80

-0.62 ± 1,41

-0.99 ± 1.03*

0.00 ± 0.65*

 

-1.05 (-2.40 – 0.00)

1.41 (-0.20 – 0.70)

-0.90 (-2.60 – 0.70)

0.00 (-1.10 - 1.30)

Sweat chloride (mmol/l)

110 ± 13**

86 ± 14**

102 ± 17*

19 ± 8*

 

106 (92 – 140)

90 (70 – 99)

104 (70 – 140)

19 (10 – 36)

NPD CFTR response average Δ0Cl -+ Iso (mV)

4.6 ± 3.9

1.5 ± 4.1

3.6 ± 4.1*

-13.6 ± 8.5*

 

5.1 (-3.0 -11.9)

1.5 (-3.2 – 6.23)

4.5 (-3.2 – 11.9)

-12.7 (-26.4 - -1.92)

ICM CFTR response average ΔIsc (μA/cm 2) ) (forskolin/IBMX + carbachol + histamine)

-0.3 ± 8.1

5.3 ± 10.9

1.6 ± 9.2*

77.8 ± 34.8*

 

-0.6 (-12.6 – 17.9)

5.0 (-9.7 – 19.0)

0.1 (-12.6 – 19.0)

65.3 (39.6 -140.9)

Genotyping

F508/F508 (6×)

F508/R347P (2×)

 

148 T/R117H-7 T

 

F508/G551D (2×)

F508/3849 + 10 kb C- > T (2×)

 

F508/--

 

F508/G542X

F508/R334W

 

--/--

 

F508/N1303K

F508/?

 

ND/ND (11)

 

F508/1248 + 1G-A

   
 

F508/dele 14a,15,16,17a,17b

   
  1. Data are shown as ratios or the mean ± standard deviation incl. median (min – max). *p <0.001 (CF-all versus controls); **p = 0.003 (CF-PI versus CF-PS).