Table 1Demographic and anthropometric characteristics in young, middle aged and old subjects.
|
Variable |
Young (18–39 years) |
Middle (40–64 years) |
Old (≥ 65 years) |
Male (n = 337) |
*WC (cm) |
085.98 |
(08.56) |
082.82 |
(08.76) |
84.68 |
(9.53) |
*BMI (cm/kg) |
023.60 |
(03.06) |
023.38 |
(02.98) |
24.22 |
(2.99) |
*SBP (mmHg) |
118.69 |
(14.10) |
119.09 |
(14.00) |
119.08 |
(11.90) |
*DBP (mmHg) |
076.95 |
(11.49) |
078.36 |
(10.37) |
79.03 |
(10.51) |
Hypertension/normal (number) |
17/47 |
72/163 |
13/25 |
Total (number) |
64 |
235 |
38 |
Female (n = 234) |
*WC (cm) |
083.49 |
(07.82) |
083.3 |
(7.33) |
085.97 |
(09.43) |
*BMI (cm/kg) |
023.70 |
(02.88) |
023.51 |
(2.56) |
024.09 |
(03.08) |
*SBP (mmHg) |
122.28 |
(12.5) |
122.54 |
(12.89) |
122.32 |
(12.54) |
*DBP (mmHg) |
079.23 |
(11.83) |
079.99 |
(10.52) |
081.42 |
(08.91) |
Hypertension/normal (number) |
25/32 |
57/89 |
5/16 |
Total (number) |
57 |
146 |
31 |
Table 2The logistic regression analysis of variables on hypertension incidence.
Variable |
B |
SE |
p
|
OR |
Waist |
0.07 |
0.01 |
0.00**
|
1.07 |
Age |
0.02 |
0.01 |
0.03*
|
1.02 |
Constant |
−8.34 |
1.30 |
0.00**
|
0.00 |
Table 3Optimal cutoff values for prediction of hypertension incidence in waist and BMI risk factors in different age groups.
|
|
Age Group (years) |
Cutoff |
SS |
SP |
AUC (95% CI) |
Waist |
Men |
Young (18–39) |
92.50 |
0.53 |
0.85 |
0.74 (0.58 – 0.90)*
|
Middle (40–64) |
87.50 |
0.51 |
0.76 |
0.68 (0.61 – 0.75)*
|
Old (≥ 65) |
82.50 |
0.85 |
0.56 |
0.74 (0.59 – 0.90)*
|
Women |
Young (18–39) |
82.50 |
0.84 |
0.63 |
0.71 (0.58 – 0.85)*
|
Middle (40–64) |
81.50 |
0.83 |
0.56 |
0.70 (0.61 – 0.78)*
|
Old (≥ 65) |
94.50 |
0.27 |
0.94 |
0.51(0.30 – 0.72) |
BMI |
Men |
Young (18–39) |
23.05 |
0.88 |
0.47 |
0.74 (0.58 – 0.89)*
|
Middle (40–64) |
23.25 |
0.75 |
0.58 |
0.68 (0.61 – 0.75)*
|
Old (≥ 65) |
23.95 |
0.54 |
0.60 |
0.64 (0.44 – 0.84) |
Women |
Young (18–39) |
23.65 |
0.84 |
0.75 |
0.76 (0.64 – 0.89)*
|
Middle (40–64) |
21.85 |
0.93 |
0.40 |
0.68 (0.59 – 0.76)*
|
Old (≥ 65) |
20.95 |
0.93 |
0.25 |
0.50 (0.30 – 0.71) |