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Table 1 Comparison of demographics and socioeconomic status between cases and controls

From: An analysis of risk factors of non-fatal drowning among children in rural areas of Guangdong Province, China: a case-control study

  Cases n(%) Controls n(%) P-value (χ2 test)
Age(years) 325(100.0) 325(100.0) 0.545
   9-11 35(10.7) 38(11.7)  
   12 54(16.6) 58(17.8)  
   13 48(14.8) 32(9.8)  
   14 83(25.5) 97(29.8)  
   15 75(23.1) 71(21.8)  
   16-18 30(9.2) 29(8.9)  
Father's education 325(100.0) 325(100.0) 0.605
   Illiteracy 4(1.2) 4(1.2)  
   Elementary school 39(12.0) 51(15.7)  
   High school 140(43.1) 148(45.5)  
   Undergraduate 54(16.6) 51(15.7)  
   Postgraduate and over 21(6.5) 14(4.3)  
   Unknown 67(20.6) 57(17.5)  
Mother's education 252(100.0) 255(100.0) 0.558
   Illiteracy 9(2.8) 6(1.9)  
   Elementary school 88(27.1) 92(28.4)  
   High school 101(31.1) 109(33.6)  
   Undergraduate 39(12.0) 40(12.4)  
   Postgraduate and over 15(4.6) 8(2.5)  
   Unknown 73(22.5) 69(21.3)  
Household income 325(100.0) 325(100.0) 0.344
   Low 33(10.2) 23(7.1)  
   In-betweens 228(70.2) 223(68.8)  
   High 52(16.0) 65(20.1)  
   Unknown 12(3.7) 13(4.0)