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Table 1 Basic demographic characteristics of Subjects According to BMI Quintiles

From: Association of body mass index and waist circumference with high blood pressure in older adults

Characteristics First Quintile Second Quintile Third Quintile Fourth Quintile Fifth Quintile P for trend
Male BMI < 22.20 22.20 ≤ BMI < 24.02 24.02 ≤ BMI < 25.73 25.73 ≤ BMI < 27.78 BMI ≥ 27.78  
Female BMI < 22.43 22.43 ≤ BMI < 24.42 24.42 ≤ BMI < 26.27 26.27 ≤ BMI < 28.58 BMI ≥ 28.58  
N0. 25,164 25,236 25,166 25,268 25,289  
High blood pressure       < 0.001
 no 13,812 (54.89) 12,206 (48.37) 11,346 (45.08) 10,508 (41.59) 9205 (36.4)  
 yes 11,352 (45.11) 13,030 (51.63) 13,820 (54.92) 14,760 (58.41) 16,084 (63.6)  
Cancer       0.005
 no 25,137 (99.89) 25,215 (99.92) 25,146 (99.92) 25,246 (99.91) 25,282 (99.97)  
 yes 27 (0.11) 21 (0.08) 20 (0.08) 22 (0.09) 7 (0.03)  
Stroke       0.003
 no 25,036 (99.49) 25,099 (99.46) 25,056 (99.56) 25,163 (99.58) 25,194 (99.62)  
 yes 128 (0.51) 137 (0.54) 110 (0.44) 105 (0.42) 95 (0.38)  
Psychotic illness       0.009
 no 24,982 (99.28) 25,107 (99.49) 25,027 (99.45) 25,177 (99.64) 25,136 (99.39)  
 yes 182 (0.72) 129 (0.51) 139 (0.55) 91 (0.36) 153 (0.61)  
Age, years 72.08 ± 7.75 70.54 ± 7.17 69.96 ± 6.66 69.59 ± 6.49 69.29 ± 6.17 < 0.001
sex,%       0.981
 men 11,619 (46.17) 11,584 (45.9) 11,612 (46.14) 11,642 (46.07) 11,658 (46.1)  
 women 13,545 (53.83) 13,652 (54.1) 13,554 (53.86) 13,626 (53.93) 13,631 (53.9)  
Marital status, %       < 0.001
 unmarried 558 (2.22) 432 (1.71) 341 (1.36) 285 (1.13) 246 (0.97)  
 married 19,847 (78.87) 20,968 (83.09) 21,315 (84.7) 21,686 (85.82) 21,916 (86.66)  
 divorced 135 (0.54) 91 (0.36) 124 (0.49) 92 (0.36) 83 (0.33)  
 death of a spouse 4624 (18.38) 3745 (14.84) 3386 (13.45) 3205 (12.68) 3044 (12.04)  
Smoking, %       < 0.001
 Never smokers 20,950 (83.25) 21,506 (85.22) 21,557 (85.66) 21,879 (86.59) 22,079 (87.31)  
 Former smokers 537 (2.13) 591 (2.34) 611 (2.43) 623 (2.47) 678 (2.68)  
 Current smokers 3677 (14.61) 3139 (12.44) 2998 (11.91) 2766 (10.95) 2532 (10.01)  
Alcohol consumption, %       < 0.001
 Never 23,681 (94.11) 23,651 (93.72) 23,364 (92.84) 23,379 (92.52) 23,296 (92.12)  
 Once in a while 906 (3.6) 998 (3.95) 1113 (4.42) 1129 (4.47) 1215 (4.8)  
 More than once a week 243 (0.97) 277 (1.1) 305 (1.21) 350 (1.39) 352 (1.39)  
 Every day 334 (1.33) 310 (1.23) 384 (1.53) 410 (1.62) 426 (1.68)  
Physical exercise, %       < 0.001
 Never 16,555 (65.79) 15,881 (62.93) 15,014 (59.66) 14,897 (58.96) 15,290 (60.46)  
 Once in a while 863 (3.43) 912 (3.61) 943 (3.75) 998 (3.95) 966 (3.82)  
 More than once a week 1576 (6.26) 1809 (7.17) 1937 (7.7) 1914 (7.57) 1830 (7.24)  
 Every day 6170 (24.52) 6634 (26.29) 7272 (28.9) 7459 (29.52) 7203 (28.48)  
Residence       < 0.001
 Rural areas 21,838 (86.78) 20,703 (82.04) 20,322 (80.75) 20,314 (80.39) 20,365 (80.53)  
 Urban areas 3326 (13.22) 4533 (17.96) 4844 (19.25) 4954 (19.61) 4924 (19.47)  
Blood glucose, mmol/L 5.44 ± 1.8 5.68 ± 1.86 5.82 ± 1.91 5.91 ± 1.91 6.04 ± 1.95 < 0.001
  1. Data are shown as mean ± SD or n (%). BMI body mass index, Residence, area of residence; Blood glucose, Fasting plasma glucose