Table 4.

Variables associated with an acid exposure time >5.0%

Variable	Odds ratio	95% confidence interval	P-value
Hiatal hernia	2.2	1.2–4.0	0.01
Heartburn	1.4	0.9–2.2	0.12
Regurgitation	1.9	1.2–3.2	0.01
Laryngeal complaints only	0.7	0.4–1.4	0.38
Chest pain	0.8	0.5–1.3	0.33
Cough only	0.3	0.1–1.1	0.07
Time of capsule placement	1.0	0.9–1.2	0.58
No weekend overlap	1.4	0.9–2.3	0.09