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Table 3 Analysis of glucocorticoid receptor genotypes and longitudinal trends for FEV1 and FVC

From: Glucocorticoid receptor gene polymorphisms associated with progression of lung disease in young patients with cystic fibrosis

  

Total population

F508del/F508del patients

 

Genotype

Y6 (± SD)

k (± SD)

p

Y6 (± SD)

k (± SD)

p

FEV 1

TthIII

CC

95.5 (± 2.9)

-2.5 (± 0.5)

0.7

89.2 (± 4.1)

-2.2 (± 0.7)

0.4

 

CT

96.2 (± 4.1)

-2.9 (± 0.7)

 

98.7 (± 5.4)

-3.8 (± 0.9)

 
 

TT

88.8 (± 6.7)

-1.6 (± 1.1)

 

94.4 (± 8.4)

-2.2 (± 1.3)

 

ER22/23EK

GG

95.2 (± 11.2)

-2.6 (± 1.7)

0.4

94.6 (± 21.4)

-3.0 (± 2.9)

0.7

 

AA + AG

92.6 (± 11.0)

-0.5 (± 1.7)

 

90.4 (± 21.2)

-0.9 (± 2.8)

 

N363S

AA

95.5 (± 7.3)

-2.6 (± 1.4)

0.5

95.3 ± (9.9)

-3.0 (± 2.2)

0.5

 

GG + AG

89.9 (± 7.0)

-2.9 (± 1.4)

 

85.3 ± (9.6)

-3.0 (± 2.2)

 

BclI

CC

96.4 (± 2.8)

-2.3 (± 0.5)

0.02*

92.0 (± 3.7)

-2.3 (± 0.6)

0.01*

 

CG

90.7 (± 3.9)

-2.8 (± 0.7)

 

89.3 (± 5.2)

-3.1 (± 0.8)

 
 

GG

106.8 (± 6.4)

-3.4 (± 1.2)

 

111.0 (± 7.2)

-4.3 (± 1.3)

 

FVC

TthIII

CC

97.6 (± 2.6)

-2.3 (± 0.4)

0.8

92.1 (± 3.7)

-1.8 (± 0.6)

0.9

 

CT

93.8 (± 3.5)

-1.7 (± 0.6)

 

95.2 (± 5.0)

-2.2 (± 0.8)

 
 

TT

92.3 (± 5.9)

-1.6 (± 0.9)

 

92.8 (± 7.8)

-1.8 (± 1.3)

 

ER22/23EK

GG

95.6 (± 9.7)

-2.1 (± 1.4)

0.1

93.8 (± 19.4)

-2.2 (± 2.7)

0.5

 

AA + AG

86.4 (± 9.5)

+1.0 (± 1.4)

 

89.4 (± 19.3)

0.6 (± 2.6)

 

N363S

AA

95.2 (± 6.3)

-1.9 (± 1.2)

0.9

94.1 (± 8.9)

-2.1 (± 2.0)

0.8

 

GG + AG

94.9 (± 6.1)

-2.2 (± 1.2)

 

88.4 (± 8.6)

-1.7 (± 2.0)

 

BclI

CC

96.0 (± 2.5)

-1.5 (± 0.4)

0.04*

91.7 (± 3.3)

-1.3 (± 0.4)

0.02*

 

CG

92.0 (± 3.5)

-2.1 (± 0.6)

 

89.3 (± 4.7)

-2.1 (± 0.8)

 
 

GG

104.0 (± 5.7)

-2.8 (± 0.1)

 

107.8 (± 6.6)

-3.6 (± 1.2)

 
  1. Abbreviations: Y: years; FEV1: forced expiratory volume in 1 second; FVC: forced vital capacity. FEV1 and FVC are expressed as percentages of predicted values.
  2. Statistical analysis: Mixed model regression for FEV1, FVC according to age. Results are expressed as estimated value at 6 years (Y6 ± SD) and average decline per year (k ± SD). Mixed model equation is expressed as Yage = Y6 - k (age - 6). *p < 0.05.