Risk factor | OR (95% CI) | p Value |
Male sex | 2.765 (1.170 to 6.533) | 0.02 |
Acid exposure >first quartile | 3.542 (1.234 to 10.165) | 0.0143 |
Acid exposure >second quartile | 3.687 (1.766 to 7.696) | <0.001 |
Acid exposure >third quartile | 5.110 (2.657 to 9.826) | <0.001 |
Upright acid exposure >first quartile | 3.542 (1.234 to 10.165) | 0.0143 |
Upright acid exposure >second quartile | 4.266 (1.991 to 9.141) | <0.001 |
Upright acid exposure >third quartile | 5.110 (2.657 to 9.826) | <0.001 |
No. of acid episodes >5 min>first quartile | 4.048 (1.507 to 10.873) | <0.01 |
No. of acid episodes >5 min>second quartile | 4.423 (1.270 to 15.411) | <0.05 |
No. of acid episodes >5 min>third quartile | 6.782 (1.810 to 25.407) | <0.005 |
DGOR exposure >first quartile | 3.038 (0.090 to 10.250) | 0.0740 |
DGOR exposure >second quartile | 3.738 (1.477 to 9.463) | 0.0045 |
DGOR exposure >third quartile | 4.176 (1.886 to 9.243) | 0.0008 |
Upright DGOR exposure >first quartile | 4.409 (1.026 to 18.949) | 0.0359 |
Upright DGOR exposure >second quartile | 3.738 (1.477 to 9.463) | 0.0045 |
Upright DGOR exposure >third quartile | 4.929 (2.208 to 11.004) | <0.001 |
Cut-offs at the first, second and third quartile were 0.6%, 4.9% and 20.1% of time, respectively, for DGOR, and 0.6% 2.4% and 7.5% of time, respectively, for acid exposure.
DGOR, duodeno-gastro-oesophageal reflux.