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. 2021 Apr 14;18(8):4151. doi: 10.3390/ijerph18084151

Table 1.

General characteristics of the study population.

Variables Lipid Accumulation Product Index (LAP)
Total Male Female
N % N % MEDIAN IQR p-Value N % MEDIAN IQR p-Value
Total 14,607 100.0 6142 100.0 30.53 35.62 8465 100.0 21.87 28.13
Smoking Behavior <0.0001 0.0002
Dual smoker 222 1.5 187 3.0 40.6 40.5 35 0.4 16.7 25.4
“Single” smoker 2222 15.2 1850 30.1 34.2 43.9 372 4.4 24.0 38.8
Ex-use 3111 21.3 2618 42.6 30.8 33.2 493 5.8 20.8 28.8
Non-use 9052 62.0 1487 24.2 24.8 29.8 7565 89.4 21.9 27.7
Age <0.0001 <0.0001
19–29 1691 11.6 775 12.6 18.7 27.6 916 10.8 9.2 11.5
30–39 2315 15.8 948 15.4 32.9 38.2 1367 16.1 14.4 18.4
40–49 2719 18.6 1062 17.3 36.5 42.5 1657 19.6 17.4 22.7
50–59 2742 18.8 1117 18.2 33.7 38.3 1625 19.2 23.6 25.4
60–69 2620 17.9 1144 18.6 31.1 32.9 1476 17.4 31.3 29.7
≥70 2520 17.3 1096 17.8 28.0 28.1 1424 16.8 35.0 30.0
Marital Status 0.0017 0.0523
Married 10,226 70.0 4476 72.9 32.3 34.8 5750 67.9 22.1 26.5
Single. widow,
divorced, separated
4381 30.0 1666 27.1 24.2 34.8 2715 32.1 21.2 31.2
Educational level 0.0008 <0.0001
Middle school or less 4501 30.8 1562 25.4 28.32 32.22 2939 34.7 33.06 31.42
High school 4635 31.7 2071 33.7 30.05 37.86 2564 30.3 20.15 26.16
College or over 5471 37.5 2509 40.8 32.30 35.25 2962 35.0 14.35 18.96
Household income 0.6001 <0.0001
Low 2766 18.9 1071 17.4 28.82 33.90 1695 20.0 32.82 33.95
Mid-low 3569 24.4 1475 24.0 30.82 36.00 2094 24.7 24.88 29.63
Mid-high 4001 27.4 1717 28.0 30.51 34.39 2284 27.0 19.64 24.70
High 4271 29.2 1879 30.6 31.47 36.48 2392 28.3 16.09 21.36
Region 0.1867 0.8982
Urban area 11,889 81.4 4939 80.4 30.41 35.20 6950 82.1 21.02 27.63
Rural area 2718 18.6 1203 19.6 31.03 36.70 1515 17.9 25.75 30.30
Occupational categories <0.0001 <.0001
White 3593 24.6 1728 28.1 33.23 35.66 1865 22.0 13.87 17.62
Pink 1843 12.6 598 9.7 32.28 37.73 1245 14.7 22.11 25.13
Blue 3366 23.0 2066 33.6 29.83 36.40 1300 15.4 26.45 30.33
Unemployed 5805 39.7 1750 28.5 28.10 32.00 4055 47.9 25.47 30.75
BMI <0.0001 <0.0001
Under 550 3.8 151 2.5 3.39 5.42 399 4.7 4.45 4.89
Normal 8994 61.6 3483 56.7 21.80 23.17 5511 65.1 16.67 18.36
Over 5063 34.7 2508 40.8 48.00 40.38 2555 30.2 42.84 36.61
Alcohol consumption <0.0001 0.0196
No 4039 27.7 1082 17.6 27.48 31.22 2957 34.9 27.64 30.63
Yes 10,568 72.3 5060 82.4 31.33 36.69 5508 65.1 19.16 25.56
Physical activity <0.0001 <0.0001
Inadequate 8310 56.9 3312 53.9 31.90 37.13 4998 59.0 24.24 29.82
Adequate 6297 43.1 2830 46.1 28.59 33.62 3467 41.0 18.50 25.08
The number of chronic diseases <0.0001 <0.0001
0 9562 65.5 3934 64.1 27.44 33.93 5628 66.5 16.58 21.38
1 2862 19.6 1296 21.1 34.24 37.54 1566 18.5 30.51 30.20
≥2 2183 14.9 912 14.8 38.25 36.12 1271 15.0 39.40 33.48
Pack-year * 6.68 14.12 15.02 18.33 <0.0001 0.62 3.57 0.0996
Total kcal * 184009.76 79264 213062.30 84430.0 0.0209 162929.90 67919.0 0.1528

* Pack-year and total kcal are presented as continuous variables N = Mean, % = standard deviation, BMI = body mass index