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Table 1 The basic characteristics of the intervention group and control group

From: The effect of health education on knowledge and behavior toward respiratory infectious diseases among students in Gansu, China: a quasi-natural experiment

VariableKindsIntervention group (n = 2065)Control group (n = 2019)x2P
CountsFrequency (%)CountsFrequency (%)
GenderMale113154.77108753.840.360.55
Female93445.2393246.16
Age10–13 years old95546.2585742.457.070.03*
14–17 years old92644.8498848.94
18–20 years old1848.911748.62
NationalityHan202498.02199898.966.100.02*
Minority411.99211.04
Educational levelPrimary school83840.5879539.381.960.38
Junior high school59628.8660630.02
Senior high school63130.5661830.61
Household registerUrban156375.69116857.85146.65< 0.01**
Rural50224.3185142.15
  1. Inference: ** p < 0.01; * p < 0.05
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