Table 3 Gastric acidity and oesophageal acid exposure in different cystic fibrosis genotypes
DF508 homozygoteDF508 heterozygoteOther
Gastric acidity, % time pH<484% (76–91)*95% (94–97)93% (88–99
Oesophageal acid exposure3.4 (2.2–7.7)%8.8 (2.9–12.3)%8.4 (6.4–10.6)%

  • Results are expressed as median (25th to 75th percentile).

  • *p<0.005 vs DF508(1) and other.