Table 1 Characteristics of study groups
From: Dietary guideline adherence for gastroesophageal reflux disease
GERD Group (physician-assigned) | Population controls without GERD1 | |
|---|---|---|
Number or Mean (% or standard deviation) | Number or Mean (% or standard deviation) | |
Number of subjects | 308 | 182 |
Age (years) | ||
20-39 | 11 (4) | 9 (5) |
40-59 | 111 (36) | 63 (35) |
60-79 | 186 (60) | 110 (60) |
Race/Ethnicity | ||
White | 247 (80) | 154 (84) |
Black | 20 (6) | 10 (5) |
Hispanic | 20 (6) | 7 (4) |
Asian | 8 (3) | 5 (3) |
Others/Missing/Unknown | 13 (4) | 6 (3) |
Male | 211 (69) | 123 (68) |
GERD symptoms | ||
Severity2 | ||
Severe & very severe | 124 (40) | -- |
Moderate | 109 (35) | -- |
Mild | 75 (25) | -- |
Frequency | ||
Daily | 78 (25) | -- |
Several times a week | 89 (29) | -- |
Once month – once a week | 91 (30) | -- |
Less than once a month | 50 (16) | -- |
BMI | 28.9 (5.2) | 28.3 (5.5) |
Smoking | ||
Current smoker | 30 (10) | 19 (10) |
Portion size | ||
% extra large or large | 27.9 (16.3) | 28.8 (17.2) |