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Table 2 Distribution of subjects with elevated blood pressure by socio-economic class

From: Elevated arterial blood pressure and body mass index among Nigerian preschool children population

  Blood presure   
Class High Normal Total
  n (%) n (%) n (%)
Upper 2 (2.1%) 93 (97.9) 95 (100)
Middle 7 (2.0%) 436 (98.0) 443 (100)
Lower 3 (3.2%) 89 (96.8) 92 (100)
Total 12 (1.9) 618 (98.1) 630 (100)
χ 2 = 1.18 df = 2 P-value = 0.56.