Skip to main content

Table 1 Characteristic of eligible participants

From: Association between dietary acid load and the risk of hypertension among adults from South China: result from nutrition and health survey (2015–2017)

 Overall (n = 3501)Male (n = 1893)Female (n = 1608)
Age (years)52.0 ± 15.052.9 ± 15.251.2 ± 14.7
Ethnicity (N, %)
Han3473(99.2)1874(99.0)1599(99.4)
Other28(0.8)19(1.0)28(0.6)
BMI (Kg/m2)23.4 ± 3.523.3 ± 3.423.4 ± 3.6
Nutrient intake
Protein (g/d)65.9 ± 36.571.5 ± 40.461.1 ± 32.0
Calcium (mg/d)1501.6 ± 603.91564.6 ± 579.31448.1 ± 619.1
Potassium (mg/d)381.1 ± 211.1389.4 ± 184.7374.1 ± 231.0
Phosphorus (mg/d)866.6 ± 298.7926.2 ± 298.9815.9 ± 289.1
Magnesium (mg/d)238.4 ± 82.3250.7 ± 83.3228.0 ± 80.0
Sodium (mg/d)4893.5 ± 33665228.2 ± 3400.44609.2 ± 3310.9
Total energy intake (Kcal/d)1757.4 ± 566.51908.6 ± 604.81629.0 ± 497.1
PRAL (mEq/d)22.1 ± 18.625.3 ± 20.219.4 ± 16.7
NEAP (mEq/d)86.8 ± 53.990.4 ± 58.983.8 ± 49.1
DBP (mmHg)131.0 ± 21.2132.6 ± 20.1129.6 ± 22.0
SBP (mmHg)77.4 ± 11.579.1 ± 11.375.9 ± 11.5
Sedentary leisure time (h/d)4.9 ± 2.85.1 ± 2.84.8 ± 2.7
Physical activity time (h/d)1.1 ± 0.81.1 ± 0.81.0 ± 0.7
Hypertension (N, %)1076(30.7)550(29.1)526(32.7)
Smoking (N, %)2546(72.7)1842(97.3)704(43.8)
Alcohol (N, %)2171(62.0)1420(75.0)751(46.7)
Education (N, %)
  ≤ 6 years1674(47.8)1062(56.1)612(38.1)
7–12 years1482(43.3)761(40.2)924(57.5)
  ≥ 13 years345(9.9)70(3.7)72(4.5)
Marital status (N, %)
Unmarried329(9.4)178(9.4)151(9.4)
Married3172(90.6)1715(90.6)1457(90.6)
  1. Footprint: BMI Body mass index, PRAL Potential renal acid load, NEAP Net endogenous acid production, SBP Systolic blood pressure, DBP Diastolic blood pressure