Table 1 Socio-demographic, biometric and biologic characteristics of the study population
|  | Total N = 300 | Bantus N = 150 | Pygmies N = 150 | p |
|---|---|---|---|---|
Age, years | 35 ± 12 | 33 ± 11 | 38 ± 12 | 0.0001 |
Male gender, % | 55 | 57 | 52.6 | 0.4 |
Married status (%) | 161 (53.7) | 62 (41.3) | 99 (66) | < 0.0001 |
Literatea(%) | 209 (69.7) | 150 (100) | 59 (39.3) | < 0.0001 |
Tobacco (%) | 10 (3.3) | 8 (5.4) | 10 (6.7) | 0.9 |
Alcohol (%) | 178 (59.3) | 100 (66.7) | 78 (52.0) | 0.014 |
Height, m | 1.63 ± 0.14 | 1.72 ± 0.12 | 1.54 ± 0.09 | <  0.0001 |
Weight, kg | 65.8 ± 16.8 | 77.2 ± 14.8 | 54.4 ± 9.2 | <  0.0001 |
BMI, kg/m2 | 24.4 ± 4.8 | 26.0 ± 5.6 | 22.9 ± 3.1 | <  0.0001 |
Overweight/obesity (%) | 106 (35.3) | 71 (47.3) | 35 (23.3) | <  0.0001 |
WC, cm | 77 ± 11 | 78 ± 14 | 75 ± 5 | 0.002 |
AO (%) | 14 (4.7) | 13 (8.7) | 1 (0.7) | 0.003 |
SBP, mmHg | 113 ± 16 | 119 ± 17 | 107 ± 12 | <  0.0001 |
DBP, mmHg | 74 ± 12 | 78 ± 13 | 71 ± 11 | <  0.0001 |
MBP, mmHg | 87 ± 12 | 92 ± 12 | 83 ± 10 | <  0.0001 |
PP, mmHg | 39 ± 13 | 41 ± 14 | 36 ± 11 | 0.002 |
Hypertension (%) | 47 (15) | 42 (28) | 5 (3.3) | <  0.0001 |
Na+, mmol/L | 84.2 ± 61.4 | 121.5 ± 61.0 | 46.9 ± 32.4 | <  0.0001 |
K+, mmol/L | 70.8 ± 45.2 | 73.5 ± 44.7 | 68.2 ± 45.8 | 0.3 |
Na+/K+ ratio | 2.0 ± 2.6 | 2.6 ± 3.1 | 1.3 ± 1.9 | <  0.0001 |