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Table 4 Results of 24-hour esophageal pH monitoring more than 1 year after surgery in patients with CAP originally observed within 4 weeks after the operation.

From: Acid regurgitation associated with persistent cough after pulmonary resection: an observational study

Case

No. of reflux occurrences#

Time pH <4 (min)#

Time pH <4 (%)

Coughing (VAS)

No. of coughing occurrences#

Result of pH monitor (group)

3

133

53

3.7

0

1

B

5

180

382

28.9

0

0

B

6

422

188

13.1

0

2

B

7

197

150

10.5

0

0

B

9

214

207

14.4

1

18

B

  1. #In 24-hour period, VAS: visual analog scale, SAP: symptom association probability,