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Table 1 Health characteristics of e-waste recyclers and non-e-waste recyclers in Accra-Ghana

From: Micronutrient-rich dietary intake is associated with a reduction in the effects of particulate matter on blood pressure among electronic waste recyclers at Agbogbloshie, Ghana

  E-waste Recyclers
Mean ± SE
Non-E-waste Recyclers
Mean ± SE
T-test P-value
Blood pressure at Wave I
 Systolic Pressure 123.06 ± 1.03 128.57 ± 2.12 − 2.63 0.01
 Diastolic Pressure 73.61 ± 0.83 76.46 ± 1.50 − 1.79 0.07
 Pulse Pressure 49.46 ± 0.94 52.11 ± 1.24 − 1.63 0.11
 Arterial Pressure 90.09 ± 0.79 93.83 ± 1.63 − 2.33 0.02
 Heart rate 73.69 ± 0.97 74.38 ± 1.64 −0.38 0.70
Blood pressure at Wave II
 Systolic Pressure 119.85 ± 1.03 127.00 ± 2.45 − 3.17 0.002
 Diastolic Pressure 72.19 ± 0.82 75.52 ± 1.77 − 1.96 0.05
 Pulse Pressure 47.67 ± 1.08 51.48 ± 1.53 − 2.00 0.04
 Arterial Pressure 88.07 ± 0.74 92.68 ± 1.89 − 2.74 0.01
 Heart rate 73.44 ± 1.14 69.36 ± 1.54 2.06 0.04
Blood pressure at Wave III
 Systolic Pressure 119.62 ± 1.38 129.13 ± 2.99 −3.31 0.001
 Diastolic Pressure 70.90 ± 1.07 75.96 ± 1.96 − 2.43 0.01
 Pulse Pressure 48.71 ± 1.19 53.18 ± 1.62 −2.12 0.03
 Arterial Pressure 87.14 ± 1.04 93.68 ± 2.23 −3.03 0.003
 Heart rate 73.82 ± 1.05 73.62 ± 1.93 0.10 0.92
Ambient exposure (μg/m3)
 PM2.5 (at Wave I) 80.39 ± 5.59 39.03 ± 2.34 4.95 < 0.001
 PM2.5 (Wave II) 70.49 ± 2.45 49.50 ± 7.23 3.43 < 0.001
 PM2.5 (Wave III) 70.49 ± 3.79 87.50 ± 14.56 −1.48 0.14
BMI
 Wave I 22.52 ± 0.25 23.82 ± 0.42 −2.83 0.01
 Wave II 23.96 ± 0.30 24.14 ± 0.51 − 0.32 0.76
 Wave III 24.18 ± 0.34 24.11 ± 0.59 0.11 0.92
  1. BMI body mass index, PM2.5 particulate matter < 2.5 μm in diameter in μg/m3