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Table 3 Relationship between systolic blood pressure and other independent variables

From: The association between cadmium and lead exposure and blood pressure among workers of a smelting industry: a cross-sectional study

Independent variables β coefficient
(Standardized β coefficient)
95% CI p-value
Age 0.061 (0.082) - 0.101 – 0.222 0.461
BMI 1.509 (0.230) 1.056–1.961 < 0.001
Fasting blood glucose 0.044 (0.044) - 0.042 – 0.131 0.315
Dyslipidemia (Yes vs. No) - 1.014 (1.497) - 3.961 – 1.934 0.499
High risk alcohol drinking habit (Yes vs. No) - 0.851 (1.412) - 3.630 – 1.929 0.547
Smoking status (Yes vs. No) - 1.244 (1.446) - 4.091 – 1.602 0.390
Adequate exercise (Yes vs. No) - 2.324 (1.396) - 5.073 – 0.425 0.097
Family history of hypertension (Yes vs. No) 4.066 (2.304) - 0.469 – 8.601 0.079
Per doubling of blood cadmiuma 2.171 (0.855) 0.487–3.854 0.012
Per doubling of blood leada - 0.636 (1.029) - 2.661 – 1.389 0.537
R2 = 0.212 (p < 0.001)
  1. p - value was calculated by multiple linear regression analysis. alogarithm (base 2) transformation of blood cadmium or lead concentration. Those who were taking antihypertensive drugs were excluded. p < 0.05