| Full sample | GI complaints <80th percentile | GI complaints >80th percentile |  |  | |||
---|---|---|---|---|---|---|---|---|
 | n | % | n | % | n | % | difference | Cohen's w** |
Total sample | 13880 | 100 | 11245 | 81.0 | 2635 | 19.0 | Â | Â |
Age (mean/SD)*** | 43.2 | 1.5 | 43.2 | 1.54 | 43.2 | 1.56 | t(-1.4), df = 13878, p = 0.17 | - |
Gender |  |  |  |  |  |  | χ2 = 74.9, df = 1, p < 0.001 | 0.07 |
   Males | 6694 | 48.2 | 5623 | 50.0 | 1071 | 40.7 |  |  |
   Females | 7186 | 51.8 | 5622 | 50.0 | 1564 | 59.4 |  |  |
Highest education level |  |  |  |  |  |  | χ2 = 75.0, df = 2, p < 0.001 | 0.07 |
   Elementary school | 2226 | 16.2 | 1688 | 15.1 | 538 | 20.6 |  |  |
   Upper secondary school | 6367 | 46.2 | 5111 | 45.8 | 1256 | 48.0 |  |  |
   Higher education | 5189 | 37.7 | 4368 | 39.1 | 821 | 31.4 |  |  |
Physical illness | 1010 | 7.3 | 741 | 6.6 | 269 | 10.2 | χ2 = 41.7, df = 1, p < 0.001 | 0.05 |
BMI |  |  |  |  |  |  | χ2 = 22.7, df = 2, p < 0.001 | 0.04 |
   Normal (BMI < 25) | 7083 | 51.1 | 5776 | 51.4 | 1307 | 49.7 |  |  |
   Overweight (BMI 25-30) | 5296 | 38.2 | 4322 | 38.5 | 974 | 37.0 |  |  |
   Obese (BMI >30) | 1491 | 10.8 | 1140 | 10.1 | 351 | 13.3 |  |  |
Smoking | 4705 | 33.9 | 3658 | 32.5 | 1047 | 39.7 | χ2 = 49.4, df = 1, p < 0.001 | 0.06 |
Alcohol use |  |  |  |  |  |  | χ2 = 2.2, df = 3, p = 0.54 | - |
   Abstainer | 1027 | 7.6 | 828 | 7.5 | 199 | 7.7 |  |  |
   Low consumption | 4431 | 32.7 | 3577 | 32.5 | 854 | 33.1 |  |  |
   Average consumption | 4287 | 31.6 | 3504 | 31.9 | 783 | 30.4 |  |  |
   High consumption | 3823 | 28.2 | 3082 | 28.0 | 741 | 28.8 |  |  |
Physical activity |  |  |  |  |  |  | χ2 = 30.8, df = 2, p < 0.001 | 0.04 |
   No activity | 2103 | 15.3 | 1629 | 14.6 | 474 | 18.2 |  |  |
   Moderate | 5622 | 40.8 | 4526 | 40.6 | 1096 | 42.0 |  |  |
   High | 6041 | 43.9 | 5002 | 44.8 | 1039 | 39.8 |  |  |
Anxiety | 2281 | 16.4 | 1376 | 12.2 | 905 | 34.4 | χ2 = 759.8, df = 1, p < 0.001 | 0.23 |
Depression | 1186 | 8.5 | 718 | 6.4 | 468 | 17.8 | χ2 = 353.5, df = 1, p < 0.001 | 0.16 |
Somatic symptoms | 2375 | 17.1 | 1090 | 9.7 | 1285 | 48.8 | χ2 = 2300.0, df = 1, p < 0.001 | 0.41 |