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Table 1 Baseline demographics (intention-to-treat population)

From: Randomized, multicenter study: on-demand versus continuous maintenance treatment with esomeprazole in patients with non-erosive gastroesophageal reflux disease

Characteristic On-demand (n = 301) Continuous (n = 297)
Men, n (%) 122 (40.5) 130 (43.8)
Women, n (%) 179 (59.5) 167 (56.2)
Ethnicity, n (%)
 White 259 (86.0) 255 (85.9)
 Black 14 (4.7) 10 (3.4)
 Asian 1 (0.3) 4 (1.3)
 Othera 27 (9.0) 28 (9.4)
Age (y), mean ± SD 48.2 ± 13.6 47.6 ± 15.1
Height (cm), mean ± SD 167.0 ± 9.1 167.0 ± 9.9
Weight (kg), mean ± SD 75.1 ± 14.3 75.8 ± 14.7
Hiatal hernia, n (%) 96 (31.9) 108 (36.4)
Days with heartburn, n (%)
 4 d 26 (8.6) 31 (10.4)
 5 d 55 (18.3) 46 (15.5)
 6 d 46 (15.3) 42 (14.1)
 7 d 174 (57.8) 178 (59.9)
Severity of heartburn, n (%)
 Mild 21 (7.0) 19 (6.4)
 Moderate 165 (54.8) 153 (51.5)
 Severe 115 (38.2) 125 (42.1)
Severity of acid regurgitation, n (%)
 None 82 (27.2) 63 (21.2)
 Mild 68 (22.6) 76 (25.6)
 Moderate 95 (31.6) 95 (32.0)
 Severe 56 (18.6) 63 (21.2)
Severity of epigastric pain, n (%)
 None 133 (44.2) 129 (43.4)
 Mild 96 (31.9) 81 (27.3)
 Moderate 54 (17.9) 64 (21.5)
 Severe 18 (6.0) 23 (7.7)
Severity of dysphagia, n (%)
 None 265 (85.0) 255 (85.9)
 Mild 28 (9.3) 22 (7.4)
 Moderate 14 (4.7) 14 (4.7)
 Severe 3 (1.0) 6 (2.0)
Helicobacter pylori-positive, n (%) 125 (41.5) 130 (43.8)
  1. aIncluding patients of mixed ethnicity
  2. Abbreviation: SD standard deviation