Table 1. Demographic characteristics and prevalence of food allergy among the school children in Nanchang, Jiangxi, China in 2021.
| Variable | FA (n=146) | No FA (n=2,734) | χ2/t | P | FA (%) | Total (N=2,997) |
| Abbreviation: FA=food allergy; BMI=body mass index; SD=standard deviation. | ||||||
| Age (Mean±SD) | 8.41±1.26 | 8.42±1.23 | −0.990 | 0.921 | 4.9 | 8.40±1.23 |
| Gender | 0.093 | 0.760 | ||||
| Male | 75 | 1,369 | 5.0 | 1,512 | ||
| Female | 71 | 1,365 | 4.8 | 1,485 | ||
| Residence | 1.966 | 0.161 | ||||
| Rural | 81 | 1,354 | 5.5 | 1,475 | ||
| Urban | 65 | 1,380 | 4.3 | 1,522 | ||
| Ethnic | 0.000 | 1.000 | ||||
| Han | 146 | 2,732 | 4.9 | 2,994 | ||
| Others | 0 | 2 | 0 | 3 | ||
| BMI | 2.587 | 0.274 | ||||
| Thin | 25 | 365 | 6.1 | 407 | ||
| Normal | 85 | 1,758 | 4.5 | 1,908 | ||
| Overweight and obesity | 36 | 611 | 5.3 | 682 | ||
| Family size (Mean±SD) | 5.29±1.34 | 5.29±1.41 | −0.026 | 0.979 | 4.9 | 5.28±1.41 |