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Table 1 Demographic and clinical characteristics of adults aged 20–80 years in Shaanxi Province, China, 2014

From: Neck circumference as an indicator of elevated blood pressure independent from body composition: implications from the China nation health survey (CNHS)

Characteristics Male (n = 1733) Female (n = 2546) Total (n = 4279)
Age, years (mean, SD) 47.64 14.01 46.39 13.64 46.90 13.80
Age groups* (n, %)
 20- 232 13.39 376 14.77 608 14.21
 30- 291 16.79 459 18.03 750 17.53
 40- 408 23.54 593 23.29 1001 23.39
 50- 412 23.77 664 26.08 1076 25.15
 60–80 390 22.50 454 17.83 844 19.72
Education attainment* (n, %)
 Elementary school or below 143 8.25 394 15.48 537 12.55
 High school 1021 58.92 1375 54.01 2396 55.99
 College or higher 569 32.83 776 30.48 1345 31.43
Urban resident 1088 62.78 1621 63.67 2709 63.31
Cigarette smoking* (n, %)
 Never smoking 584 33.70 2513 98.70 3097 72.38
 Ever smoking 1149 66.30 33 1.30 1182 27.62
Alcohol consumption* (n, %)
 Quit drinking 97 5.60 6 0.24 103 2.41
 Regular drinking 279 16.10 22 0.86 301 7.03
 Occasionally drinking 584 33.70 119 4.67 703 16.43
 Never drinking 773 44.60 2399 94.23 3172 74.13
Physical activity* (n, %)
 Inactive 242 13.96 447 17.56 689 16.10
 Moderate 1169 67.46 1918 75.33 3087 72.14
 Active 320 18.47 180 7.07 500 11.68
Family history of HTN* (n, %) 697 44.13 1123 44.13 1820 42.54
BMI*, kg/m2 (mean, SD) 24.13 3.29 23.38 3.63 23.68 3.52
WC*, cm (mean, SD) 88.19 9.93 82.04 10.54 84.53 10.73
WHR* (mean, SD) 0.90 0.07 0.87 0.07 0.88 0.07
FPG, mmol/L (mean, SD) 5.33 1.35 5.17 1.24 5.24 1.29
TC, mmol/L (mean, SD) 4.34 0.86 4.46 0.96 4.41 0.92
TG, mmol/L (mean, SD) 1.75 1.19 1.53 1.30 1.62 1.26
LDL-C, mmol/L (mean, SD) 2.64 1.76 2.62 1.15 2.63 1.43
HDL-C, mmol/L (mean, SD) 1.24 2.32 1.39 1.48 1.33 1.87
NC*, cm (mean, SD) 38.70 2.55 34.27 2.15 36.07 3.18
SBP* mmHg (mean, SD) 124.70 15.47 118.04 18.60 120.73 17.70
DBP*, mmHg (mean, SD) 78.14 10.80 73.30 10.61 75.26 10.95
Antihypertensive medication usage (n, %#) 235 50.43 329 60.37 564 55.79
Pre-HTN* (n, %) 259 14.95 214 8.41 473 11.05
HTN* (n, %) 466 26.89 545 21.41 1011 23.63
  1. *p < 0.001 for the compassion between sex groups. Numbers may not sum to group totals due to missing values in some variables. BMI Body mass index, WC Waist circumference, WHR Waist-hip ratio, HTN Hypertension, NC Neck circumference, SBP Systolic blood pressure, DBP Diastolic blood pressure; # calculated as HTN patients who took antihypertensive medication divided by the overall number of HTN patients