Table 1.

Baseline demographics and clinical characteristics of the pooled study population (n = 1640)

Characteristic	Patients (%)*
Male:Female	47:53
Age, years
<50	54
50 to <65	34
≥ 65	12
History of heartburn episodes
<12 months	11
1–5 years	35
>5 years	53
Overall heartburn severity during the previous 7 days (investigator-assessed)
Mild	21
Moderate	62
Severe	18

*Values do not necessarily total 100% due to rounding.