Background
Methods
Study population
Definition of the metabolic syndrome
Statistical analysis
Results
Variables | The 1st survey (N = 6453) | The 2nd survey (N = 5300) | The 3rd survey (N = 5732) | The 4th surveys (N = 4542) | The 5th survey (N = 3346) |
---|---|---|---|---|---|
age
| 38.563 ± 11.444 | 39.798 ± 11.572 | 40.619 ± 11.406*
| 42.413 ± 11.495*
| 43.317 ± 11.352*
|
sex
| |||||
male
| 2688 | 2196 | 2415 | 1861 | 1351 |
female
| 3765 | 3104 | 3317 | 2681 | 1995 |
RBC
| 4.769 ± 0.456 | 4.705 ± 0.454*
| 4.698 ± 0.454*
| 4.678 ± 0.463*
| 4.7 ± 0.432*
|
Hb
| 142.454 ± 14.885 | 142.845 ± 15.27 | 141.73 ± 15.169*
| 142.569 ± 15.381 | 142.115 ± 16.465 |
HCT
| 42.888 ± 3.905 | 42.408 ± 3.951*
| 42.015 ± 3.889*
| 42.191 ± 3.964*
| 41.846 ± 3.869*
|
GGT
| 18.004 ± 16.393 | 20.016 ± 20.032*
| 19.383 ± 16.419*
| 21.08 ± 20.193*
| 21.336 ± 20.323*
|
ALB
| 46.575 ± 2.427 | 45.789 ± 2.784*
| 45.362 ± 2.742*
| 45.128 ± 2.69*
| 44.991 ± 2.436*
|
GLO
| 27.016 ± 3.838 | 27.133 ± 3.973 | 28.253 ± 3.972*
| 29.128 ± 4.046*
| 30.314 ± 3.826*
|
BUN
| 4.746 ± 1.197 | 4.698 ± 1.175*
| 4.664 ± 1.154*
| 4.772 ± 1.204 | 4.812 ± 1.145*
|
S-Cr
| 76.943 ± 13.736 | 77.897 ± 13.842*
| 77.502 ± 14.072*
| 78.587 ± 14.694*
| 77.012 ± 12.743 |
WBC
| 6.167 ± 1.466 | 6.069 ± 1.483*
| 6.054 ± 1.479*
| 6.142 ± 1.501 | 6.182 ± 1.489 |
PDW
| 12.346 ± 1.712 | 12.323 ± 1.722 | 12.226 ± 1.671*
| 12.164 ± 1.669*
| 12.088 ± 1.63*
|
MPV
| 10.454 ± 0.811 | 10.448 ± 0.946 | 10.42 ± 0.803*
| 10.398 ± 0.802*
| 10.428 ± 0.796 |
PCT
| 0.247 ± 0.089 | 0.257 ± 0.320*
| 0.254 ± 0.266*
| 0.249 ± 0.055 | 0.245 ± 0.054 |
Diet
| |||||
Vegetarian
| 3454 | 2194*
| 2098*
| 1906*
| 1214*
|
normal
| 1863 | 792 | 750 | 550 | 463 |
meat-based
| 1118 | 2283 | 2866 | 2064 | 1653 |
sea food
| 18 | 31 | 18 | 22 | 16 |
Drinking
| |||||
no
| 3698 | 2959 | 3333 | 2731*
| 1977 |
yes
| 2755 | 2341 | 2399 | 1811 | 1369 |
Smoking
| |||||
no
| 5274 | 4323 | 4678 | 3726 | 2718 |
yes
| 1179 | 977 | 1054 | 816 | 628 |
Sleep
| |||||
≥fair
| 6270 | 5173 | 5557 | 4373*
| 3250 |
<fair
| 183 | 127 | 175 | 169 | 96 |
Exercise
| |||||
never/seldom
| 4694 | 3902 | 4267*
| 3469*
| 2477 |
often
| 1759 | 1398 | 1465 | 1073 | 869 |
Quartiles | Estimate | ERR | Z | P > |Z| | RR | Lower 95% confidence limits | Upper 95% confidence limits |
---|---|---|---|---|---|---|---|
red blood cell
| |||||||
Q4
| 1.284 | 0.244 | 5.271 | <0.001 | 3.612 | 2.241 | 5.824 |
Q3
| 0.602 | 0.261 | 2.308 | 0.021 | 1.825 | 1.095 | 3.042 |
Q2
| 0.050 | 0.292 | 0.170 | 0.865 | 1.051 | 0.593 | 1.864 |
Q1
| ref | ref | ref | ref | ref | ref | ref |
hemoglobin
| |||||||
Q4
| 1.271 | 0.209 | 6.078 | <0.001 | 3.564 | 2.366 | 5.370 |
Q3
| 0.492 | 0.232 | 2.118 | 0.034 | 1.635 | 1.037 | 2.577 |
Q2
| 0.251 | 0.240 | 1.045 | 0.296 | 1.285 | 0.803 | 2.056 |
Q1
| ref | ref | ref | ref | ref | ref | ref |
hematocrit
| |||||||
Q4
| 1.005 | 0.210 | 4.776 | <0.001 | 2.732 | 1.809 | 4.127 |
Q3
| 0.406 | 0.234 | 1.736 | 0.083 | 1.500 | 0.949 | 2.371 |
Q2
| 0.123 | 0.249 | 0.496 | 0.620 | 1.131 | 0.694 | 1.844 |
Q1
| ref | ref | ref | ref | ref | ref | ref |
gender
| −0.946 | 0.157 | −6.034 | <0.001 | 0.388 | 0.286 | 0.528 |
age
| 0.410 | 0.039 | 10.596 | <0.001 | 1.507 | 1.397 | 1.625 |
GGT
| 0.012 | 0.002 | 7.235 | <0.001 | 1.012 | 1.009 | 1.016 |
ALB
| −0.050 | 0.025 | −1.981 | 0.048 | 0.951 | 0.906 | 0.999 |
GLO
| 0.072 | 0.015 | 4.863 | <0.001 | 1.074 | 1.044 | 1.106 |
BUN
| 0.177 | 0.049 | 3.599 | <0.001 | 1.193 | 1.084 | 1.314 |
S-Cr
| 0.010 | 0.006 | 1.668 | 0.095 | 1.010 | 0.998 | 1.022 |
WBC
| 0.284 | 0.031 | 9.061 | <0.001 | 1.328 | 1.249 | 1.412 |
PDW
| 0.005 | 0.042 | 0.119 | 0.905 | 1.005 | 0.926 | 1.091 |
MPV
| −0.093 | 0.094 | −0.983 | 0.326 | 0.912 | 0.758 | 1.096 |
PCT
| −0.588 | 1.229 | −0.478 | 0.632 | 0.555 | 0.050 | 6.176 |
Diet
| 0.223 | 0.073 | 3.049 | 0.002 | 1.250 | 1.083 | 1.442 |
Drinking
| 0.173 | 0.046 | 3.796 | 0.001 | 1.189 | 1.087 | 1.300 |
Smoking
| 0.143 | 0.044 | 3.246 | 0.001 | 1.153 | 1.058 | 1.257 |
Sleep
| 0.109 | 0.076 | 1.432 | 0.152 | 1.115 | 0.961 | 1.294 |
Exercise
| −0.013 | 0.159 | −0.080 | 0.937 | 0.987 | 0.723 | 1.348 |
Parameters | MetS | Obesity | Hyperglycemia | Hypertension | Dyslipdemia | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Estimate | P > |Z| | RR | Estimate | P > |Z| | RR | Estimate | P > |Z| | RR | Estimate | P > |Z| | RR | Estimate | P > |Z| | RR | ||
Red blood cell
| Q4 | 1.104 | 0.002 | 3.016 | 0.474 | <0.001 | 1.606 | 0.215 | 0.202 | 1.239 | 0.484 | 0.001 | 1.622 | 0.431 | <0.001 | 1.539 |
Q3 | 0.523 | 0.081 | 1.688 | 0.364 | 0.001 | 1.439 | 0.075 | 0.606 | 1.078 | 0.271 | 0.042 | 1.312 | 0.251 | 0.002 | 1.285 | |
Q2 | −0.039 | 0.895 | 0.961 | 0.006 | 0.955 | 1.006 | 0.068 | 0.605 | 1.071 | 0.113 | 0.389 | 1.120 | 0.123 | 0.103 | 1.131 | |
Q1 | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | |
Hemolglobin
| Q4 | 1.101 | 0.002 | 3.008 | 0.693 | <0.001 | 2.000 | 0.654 | 0.001 | 1.923 | 0.749 | <0.001 | 2.114 | 0.536 | <0.001 | 1.709 |
Q3 | 0.454 | 0.144 | 1.575 | 0.447 | <0.001 | 1.564 | 0.519 | 0.001 | 1.680 | 0.390 | 0.006 | 1.477 | 0.254 | 0.003 | 1.289 | |
Q2 | 0.340 | 0.162 | 1.405 | 0.387 | <0.001 | 1.473 | 0.307 | 0.025 | 1.359 | 0.273 | 0.035 | 1.314 | 0.082 | 0.251 | 1.086 | |
Q1 | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | |
Hemocrite
| Q4 | 0.583 | 0.079 | 1.792 | 0.362 | 0.009 | 1.436 | 0.028 | 0.874 | 1.029 | 0.368 | 0.021 | 1.445 | 0.257 | 0.009 | 1.293 |
Q3 | 0.214 | 0.479 | 1.238 | 0.297 | 0.013 | 1.346 | 0.151 | 0.320 | 1.163 | 0.324 | 0.018 | 1.383 | 0.195 | 0.018 | 1.215 | |
Q2 | 0.034 | 0.892 | 1.035 | 0.220 | 0.028 | 1.246 | 0.014 | 0.915 | 1.014 | 0.149 | 0.250 | 1.161 | 0.003 | 0.969 | 1.003 | |
Q1 | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref | ref |