| Se-adequate | Se-deficient | χ2 | P | ||
---|---|---|---|---|---|---|
N(549) | % | N(641) | % | |||
Age2019(years) | Â | Â | Â | 10.872 | 0.012 | |
 18–30 | 3 | 0.5 | 11 | 1.7 |  |  |
 31–40 | 32 | 5.8 | 42 | 6.6 |  |  |
 41–50 | 72 | 13.1 | 118 | 18.4 |  |  |
  >  = 51 | 442 | 80.5 | 470 | 73.3 |  |  |
Gender | Â | Â | Â | Â | 3.604 | 0.058 |
 Male | 122 | 22.2 | 173 | 27.0 |  |  |
 Female | 427 | 77.8 | 468 | 73.0 |  |  |
Education |  |  |  |  | 46.777 |  < 0.001 |
 Elementary school and below | 438 | 79.8 | 395 | 61.6 |  |  |
 middle school | 70 | 12.8 | 162 | 25.3 |  |  |
 High school / technical secondary school | 24 | 4.4 | 52 | 8.1 |  |  |
 University and above | 17 | 3.1 | 32 | 5.0 |  |  |
Smoking status | Â | Â | Â | Â | 2.380 | 0.304 |
 Never | 467 | 85.1 | 527 | 82.2 |  |  |
 Occasional smokers | 15 | 2.7 | 16 | 2.5 |  |  |
 Frequent smokers | 67 | 12.2 | 98 | 15.3 |  |  |
BMI |  |  |  |  | 25.944 |  < 0.001 |
  < 18.5 | 29 | 5.3 | 47 | 7.3 |  |  |
 18.5 ~ 23.99 | 350 | 68.8 | 317 | 49.5 |  |  |
 24 ~ 27.99 | 144 | 26.2 | 222 | 34.6 |  |  |
  >  = 28 | 26 | 4.7 | 55 | 8.6 |  |  |
Alcohol consumption | Â | Â | Â | Â | 13.862 | 0.001 |
 Never | 418 | 76.1 | 427 | 66.6 |  |  |
 Occasional | 102 | 18.6 | 157 | 24.5 |  |  |
 Frequent | 29 | 5.3 | 57 | 8.9 |  |  |