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Table 4 logistic regression analysis on the association between blood lead concentrations of children and demographic variables

From: Blood lead concentration and its associated factors in preschool children in eastern Iran: a cross-sectional study

Variable OR (95%CI) P-value
Age (month) 0.97 (0.96–0.99) 0.01
Age
 ≥ 72 month Reference  
 12–24 month 3.87 (1.39–10.79) 0.01
 24–48 month 1.67 (0.56–4.59) 0.35
 48–72 month 0.62 (0.16–2.47) 0.50
 BMI (kg/m2) 1.13 (1.02–1.24) 0.01
Gender
 Boy Reference  
 Girl 0.39 (0.17–0.92) 0.03
Exposure to paint
 No Reference  
 Yes 1.71 (0.69–4.23) 0.25
Exposure to soil
 No Reference  
 Yes 0.53 (0.12–2.33) 0.40
Education levels of parents
 Primary school Reference  
 Middle School 0.57 (0.17–1.92) 0.37
 Diploma 0.49 (0.18–1.33) 0.16
 Bachelor 0.29 (0.08–1.03) 0.05
Occupation of father
 Employment Reference  
 Martial 4.64 (0.87–24.51) 0.07
 Laborer 5.56 (1.44–21.40) 0.01
 Repairman 0.03 (0.001–2.65) 0.97
 Driver 0.22 (0.08–4.68) 0.80
 Self-employment 3.26 (0.89–11.88) 0.07
Occupation of mother
 Self-employment Reference  
 House wife 0.53 (0.11–2.47) 0.42
 Employment 0.78 (0.13–4.73) 0.78
Opium use in parents
 No Reference  
 Yes 1.36 (0.17–11.14) 0.77
Cigarette smoking in parents
 No Reference  
 Yes 1.37 (0.30–6.28) 0.68