Variable | Total N = 505 | GERD N = 285 | Non- GERD N = 220 | P-value* | |||
---|---|---|---|---|---|---|---|
N | % | N | % | N | % | ||
Age (years) | |||||||
  < 35 | 292 | 57.8 | 160 | 56.1 | 132 | 60 | 0.38 |
  ≥ 35 | 213 | 42.2 | 125 | 43.9 | 88 | 40 | |
Gender | |||||||
 Men | 156 | 30.9 | 78 | 27.4 | 78 | 35.5 | 0.051 |
 Women | 349 | 69.1 | 207 | 72.6 | 142 | 64.5 | |
Marital status | |||||||
 Single | 123 | 24.4 | 59 | 20.7 | 64 | 29.1 | 0.02** |
 Married | 382 | 75.6 | 226 | 79.3 | 156 | 70.9 | |
Education (years) | |||||||
  < 12 years schooling | 328 | 65 | 203 | 71.2 | 125 | 56.8 | 0.001** |
  ≥ 12 years schooling | 177 | 35 | 82 | 28.8 | 95 | 43.2 | |
Job | |||||||
 Unemployed | 337 | 66.7 | 198 | 69.5 | 139 | 63.2 | 0.32 |
 Self-employed | 97 | 19.2 | 51 | 17.9 | 46 | 20.9 | |
 Employee | 71 | 14.1 | 36 | 12.6 | 35 | 15.9 | |
Smoking or substance abuse | |||||||
 Yes | 61 | 12.1 | 37 | 13.0 | 24 | 10.9 | 0.47 |
 No | 444 | 87.9 | 248 | 87.0 | 196 | 89.1 | |
Physical activity (hours/wk) | |||||||
  < 2 | 451 | 89.3 | 262 | 91.9 | 189 | 85.9 | 0.03** |
  ≥ 2 | 54 | 10.7 | 23 | 8.1 | 31 | 14.1 | |
Concomitant diseases a | |||||||
 Yes | 165 | 32.7 | 111 | 38.9 | 54 | 24.5 | 0.001** |
 No | 340 | 67.3 | 174 | 61.1 | 166 | 75.5 | |
BMI | |||||||
  < 30 | 407 | 80.6 | 219 | 76.8 | 188 | 85.5 | 0.01** |
  ≥ 30 | 98 | 19.4 | 66 | 23.2 | 32 | 14.5 | |
WC (cm) | |||||||
 Men <102; Women <88 | 272 | 53.9 | 131 | 46.0 | 141 | 64.1 | <0.001** |
 Men ≥102; Women ≥88 | 233 | 46.1 | 154 | 54.0 | 79 | 35.9 |