| Index Study | |||
---|---|---|---|---|
 | NAB (n = 34) | No NAB (n = 12) | ||
Pathologic Nocturnal Esophageal Acid | Integrated Acidity | Time pH < 4 | Integrated Acidity | Time pH < 4 |
YES | 7 | 18 | 0 | 3 |
NO | 27 | 16 | 12 | 9 |
 | 3 rd Study | |||
 | NAB (n = 140) | No NAB (n = 16) | ||
Pathologic Nocturnal Esophageal Acid | Integrated Acidity | Time pH < 4 | Integrated Acidity | Time pH < 4 |
YES | 49 | 97 | 1 | 9 |
NO | 91 | 43 | 15 | 7 |