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Table 3 One-way ANOVA of “What do you know?” test scores

From: “What do you know?”——knowledge among village doctors of lead poisoning in children in rural China

Independent variable Difference 95% confidence limits p-value
Age (years)
 ≤ 35 vs. 36–49 0.28 (−0.36, 0.95) 0.16
 36–49 vs. ≥ 50 0.47 (−1.43, 2.2) 0.55
Sex    
 Male vs. female 1.7 (−0.5,4.1) 0.23
Education
 Junior college vs. undergraduate −2.7 (−4.4, −0.2) 0.033a
Annual income (RMB yuan)
 ≤ 10,000 vs. 10,001–15,000 −1.03 (−1.7, −2.2) 0.048a
 10,001–15,000 vs. > 15,001 0.37 (−0.16, 0.5) 0.29
Ethnicity
 Han vs. Tujia 1.12 (−0.7,-3.4) 0.027a
 Tujia vs. Miao 1.08 (−0.7,2.4) 0.67
Marital status
 Married vs. single 0.09 (−2.7,-1.1) 0.32
  1. aindicates significance at the .05 level