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Table 3 Univariate association of anthropometric parameters and physical activity with systolic blood pressure (mm Hg) in women and men

From: Association of body weight and physical activity with blood pressure in a rural population in the Dikgale village of Limpopo Province in South Africa

Variables Women (n = 396) Men (n = 136)
  β 95% CI p -value± B 95% CI p -value±
Age (years) 0.263 0.195 0.331 0.000 0.190 0.095 0.284 0.001
Body mass index (kg/m2) 0.554 0.340 0.768 0.000 0.225 -0.176 0.626 0.269
Waist circumference (cm) 0.302 0.212 0.392 0.000 0.119 -0.035 0.272 0.128
Hip circumference (cm) 0.216 0.123 0.309 0.000 -0.073 -0.245 0.098 0.399
Waist-Hip-Ratio 40.122 23.222 57.022 0.000 40.538 19.173 61.902 0.000
Average steps/day 0.000 0.000 0.000 0.453 0.000 0.000 0.001 0.119
BMI categories(kg/m 2 )         
Underweight (< 18.5) ** ** ** ** ** ** **  
Normal weight (18.5-24.9) -9.667 -16.540 -2.795 0.006 -1.310 -6.539 3.919 0.621
Overweight (25.0-29.9) -8.220 -15.188 -1.252 0.021 0.625 -5.812 7.062 0.848
Obese (≥ 30) -1.145 -8.415 5.506 0.681 3.455 4.223 11.133 0.375
Physical activity (average steps/day)         
Sedentary (< 4999) ** ** ** ** ** ** **  
Low active (5 000-7 499) 10.021 3.959 16.083 0.001 4.0.659 -5.733 15.052 0.377
Moderate active (7 500-9 999) 3.442 -1.785 8.670 0.196 1.083 -6.401 8.566 0.775
Active (10 000-12 499) 5.711 0.697 10.725 0.026 -2.269 -9.560 5.022 0.539
Active (≥ 12 500) 4.313 -0.473 9.100 0.077 2.652 -4.161 9.465 0.443
  1. **First category taken as the reference group, β Regression coefficients, CI Confident interval, ±significant at ≤ 0.05