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Table 2 Typical GERD symptoms in the 5 classes (primary efficacy set N = 7434)

From: Classification of adults suffering from typical gastroesophageal reflux disease symptoms: contribution of latent class analysis in a European observational study

n (%)

Class 1

Class 2

Class 3

Class 4

Class 5

N = 1598

N = 845

N = 2375

N = 1181

N = 1435

Heartburn

     

 None

53 (3.3)

41 (4.9)

12 (0.5)

204 (17.3)

0

 Mild

325 (20.3)

310 (36.7)

599 (25.2)

369 (31.2)

684 (47.7)

 Moderate

913 (57.1)

423 (50.1)

1439 (60.6)

544 (46.1)

681 (47.5)

 Severe

307 (19.2)

71 (8.4)

325 (13.7)

64 (5.4)

70 (4.9)

Regurgitation

     

 None

107 (6.7)

157 (18.6)

199 (8.4)

2 (0.2)

1063 (74.1)

 Mild

543 (34.0)

356 (42.1)

989 (41.6)

650 (55.0)

225 (15.7)

 Moderate

757 (47.4)

273 (32.3)

1031 (43.4)

465 (39.4)

130 (9.1)

 Severe

191 (12.0)

59 (7.0)

156 (6.6)

64 (5.4)

17 (1.2)

Number of days per week

     

 1 day per week

70 (4.4)

171 (20.2)

131 (5.5)

159 (13.5)

258 (18.0)

 2 to 3 days per week

529 (33.1)

407 (48.2)

823 (34.7)

523 (44.3)

631 (44.0)

 4 to 5 days per week

546 (34.2)

171 (20.2)

804 (33.9)

279 (23.6)

309 (21.5)

 6 to 7 days per week

453 (28.3)

96 (11.4)

617 (26.0)

220 (18.6)

237 (16.5)

Time of occurrence

     

 Only during the day

405 (25.3)

0

189 (8.0)

1094 (92.6)

1206 (84.0)

 Only during the night

1 (0.1)

845 (100)

0

0

0

 Both during day and night

1192 (74.6)

0

2186 (92.0)

87 (7.4)

229 (16.0)

  1. N = number of subjects.
  2. n = number of subjects with observations.