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Table 2 Univariate analysis of the risk factors of renal dysfunction in paint workers

From: Risk factors of renal dysfunction and their interaction in level-low lead exposure paint workers

  Number of subjects Number of renal dysfunction Prevalence of renal dysfunction χ2 P vaule
Age (years)     5.850 0.054
 < 25 149 13 8.72   
 25~ 411 48 11.68   
 37~ 59 187 32 17.11   
Gender     0.003 0.959
 Male 706 88 12.46   
 Female 41 5 12.20   
Work year (years)     12.146 0.002
 < 2 195 13 6.67 Reference  
 2~ 381 48 12.60 4.793 0.029
 9~ 32 171 32 18.71 12.261 0.000
Smoke     0.265 0.607
 Yes 356 42 11.80   
 No 391 51 13.04   
Drink     0.106 0.745
 Yes 414 53 12.80   
 No 333 40 12.01   
Wear mask     0.254 0.881
 Never 41 6 14.36   
 Occasionally 170 20 11.76   
 Frequently 536 67 12.50   
Wash hands before meals     1.383 0.501
 Never 50 7 14.00   
 Occasionally 215 22 10.23   
 Frequently 482 64 13.28   
Blood pressure     8.119 0.017
 Low-normal blood pressure 509 56 11.00 Reference  
 High-normal blood pressure 185 24 12.97 0.517 0.472
 Hypertension 53 13 24.53 8.154 0.004
Blood lead     15.298 0.000
 Negative 677 74 10.93   
 Positive 70 19 27.14