Table 2.
Reflux characteristics according to chronic cough status
|
GERD‐CC group (n = 31) |
GERD group (n = 47) |
P value | |
|---|---|---|---|
| Reflux symptom scores | 6.4 ± 2.4 | 4.6 ± 3.1 | .007 |
| NERD (%) | 80.6 | 72.3 | .400 |
| Esophageal acid reflux | |||
| AET (min) | 69.9 (30.6‐128.7) | 27.7 (4.3‐78.9) | .030 |
| >6% (%, n) | 25.8% (8) | 29.8% (14) | .702 |
| 4%‐6% (%, n) | 32.3% (10) | 17.0% (8) | .675 |
| <4% (%, n) | 41.9% (13) | 53.2% (25) | .330 |
| Episodes of acid reflux | 39.0 (21.0‐61.0) | 19.5 (7‐34.5) | .020 |
| Episodes of prolonged acid reflux | 2.0 (0‐5.0) | 1.0 (0‐4.0) | .301 |
| Longest reflux episode (min) | 10.0 (4.8‐17.9) | 6.8 (2.0‐13.3) | .102 |
| DeMeester score | 15.4 (6.1‐27.7) | 7.1 (2.1‐17.0) | .070 |
| Total episodes of refluxa | 143.0 (104.0‐211.0) | 103.0 (68.0‐141.0) | .008 |
| Distal extent | 111.0 (89.0‐162.8) | 92.0 (52.8‐123.3) | .084 |
| Proximal extent | 15.0 (6.0‐28.5) | 8.5 (5.0‐18.0) | .028 |
| High extent | 1.0 (0.75‐3.25) | 1.0 (0‐2.25) | .385 |
Data are presented as the median and interquartile range or percentage (number).
Abbreviations: AET, acid exposure time; GERD, gastroesophageal reflux disease; GERD‐CC, gastroesophageal reflux disease with chronic cough.
a
All reflux episodes detected by impedance per patient.