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Table 1 Participants baseline characteristics according to systolic blood pressure groups

From: Relationship between systolic blood pressure and all-cause mortality: a prospective study in a cohort of Chinese adults

  Systolic pressure groups P
Q1 Q2 Q3 Q4 Q5 Q6
<100 mmHg 100–119 mmHg 120–139 mmHg 140–159 mmHg 160–179 mmHg ≥180 mmHg
Participants, n 3562 29,723 48,420 25,273 9918 3286  
Men, n (%) 1801 (50.6) 20,740 (69.8) 40,066 (82.7) 21,652 (85.7) 8481 (85.5) 2894 (88.1) <0.0001
Age, years 41.8 ± 12.7 44.9 ± 12.4 49.4 ± 12.34 54.7 ± 11.7 57.2 ± 11.0 58.7 ± 10.5 <0.0001
SBP, mm Hg 92.4 ± 4.5 109.5 ± 5.6 126.3 ± 5.8 145.7 ± 5.8 164.5 ± 5.6 189.4 ± 12.5 <0.0001
DBP, mm Hg 62.8 ± 5.2 73.9 ± 6.4 83.4 ± 6.8 90.9 ± 8.8 97.8 ± 10.5 106.9 ± 14.1 <0.0001
(lg)TG, mmol/L −0.01 ± 0.24 0.06 ± 0.26 0.14 ± 0.27 0.18 ± 0.27 0.19 ± 0.26 0.21 ± 0.27 <0.0001
LDL-C, mmol/L 2.2 ± 0.8 2.4 ± 0.9 2.4 ± 1.0 2.5 ± 1.0 2.5 ± 1.2 2.5 ± 1.0 <0.0001
HDL-C, mmol/L 1.5 ± 0.4 1.5 ± 0.4 1.5 ± 0.4 1.6 ± 0.4 1.6 ± 0.6 1.6 ± 0.4 <0.0001
FBG, mmol/L 5.0 ± 1.3 5.2 ± 1.4 5.5 ± 1.6 5.7 ± 1.8 5.9 ± 2.0 5.9 ± 2.0 <0.0001
BMI, kg/m2 22.5 ± 3.1 23.8 ± 3.2 25.0 ± 3.4 25.9 ± 3.5 26.2 ± 3.5 26.4 ± 3.8 <0.0001
(lg)hs-CRP, mmol/L −0.18 ± 0.62 −0.13 ± 0.64 −0.08 ± 0.65 0.02 ± 0.64 0.06 ± 0.63 0.10 ± 0.64 <0.0001
Education, n (%)        <0.0001
 Illiteracy/primary 164 (4.9) 1845 (6.5) 4061 (8.7) 3163 (13.0) 1498 (15.6) 592 (18.4)  
 Middle school 2443 (72.5) 22,625 (79.2) 39,257 (83.9) 20,165 (82.9) 7887 (82.0) 2566 (79.6)  
 College/University 764 (22.7) 4079 (14.3) 3489 (7.5) 995 (4.1) 230 (2.4) 66 (2.0)  
Physical activity 3 times/week, n (%) 352 (10.6) 3589 (12.8) 6753 (14.7) 4277 (18.0) 1845 (19.7) 648 (20.6) <0.0001
Past/current alcohol drinker, n(%) 1229 (36.4) 12,122 (42.3) 20,320 (43.2) 9997 (40.7) 3582 (37.1) 1256 (38.8) <0.0001
Past/current smoker, n(%) 1086 (32.1) 11,582 (40.4) 19,771 (42.1) 9868 (40.2) 3587 (37.1) 1274 (39.4) <0.0001
Use of antihypertensives, n(%) 17 (0.5) 366 (1.2) 1750 (3.6) 2629 (10.4) 1796 (18.1) 768 (23.4) <0.0001
Diuretic, n(%) 3 (0.1) 82 (0.3) 419 (0.9) 541 (2.1) 339 (3.4) 129 (3.9) <0.0001
CCB, n(%) 5 (0.1) 84 (0.3) 373 (0.8) 591 (2.3) 358 (3.6) 146 (4.4) <0.0001
ACEI/ARB, n(%) 4 (0.1) 86 (0.3) 336 (0.7) 544 (2.2) 313 (3.2) 137 (9.6) <0.0001
β-Blockers, n(%) 0 (0) 40 (0.1) 143 (0.3) 202 (0.8) 110 (1.1) 59 (1.8) <0.0001
  1. Abbreviations: SBP systolic blood pressure, DBP diastolic blood pressure, TG triglyceride, LDL-C low-density lipoprotein cholesterol, HDL-C high-density lipoprotein cholesterol, FBG fasting blood glucose, BMI body mass index, hs-CRP high sensitivity C-reactive protein. TG and hs-CRP were converted by logarithmic transformation