Background
Methods
Study population
Assessment of general information and covariates
Cardiovascular risk score levels
Dietary assessment
Dietary pattern identification
Statistical analyses
Results
Characteristics of the sample
Demographic Factors | 10-year ICVD risk score level N (%) | χ2 | P | 10-year ASCVD risk score level N (%) | χ2 | P | |||||
---|---|---|---|---|---|---|---|---|---|---|---|
Extremely low risk N = 2222(84.4) | Low risk N = 326(12.4) | Medium-high risk N = 84(3.2) | Low risk N = 1753(66.6) | Medium risk N = 551(20.9) | High risk N = 259(9.8) | Extremely high risk N = 68(2.6) | |||||
Age | 387.1 | <.0001 | 573.9 | <.0001 | |||||||
35–44 | 1125(50.6) | 23(7.1) | 6(7.1) | 989(56.4) | 125(22.7) | 31(11.9) | 9(13.1) | ||||
45–54 | 934(42.0) | 196(60.1) | 46(54.8) | 717(40.9) | 261(47.4) | 160(61.8) | 38(55.9) | ||||
≥55 | 163(7.4) | 107(32.8) | 32(38.1) | 47(2.7) | 165(29.9) | 68(26.3) | 21(30.9) | ||||
Gender | 49.4 | <.0001 | 133.2 | <.0001 | |||||||
male | 1853(83.4) | 312(95.7) | 84(100) | 1401(79.9) | 521(94.6) | 258(99.6) | 68(100.0) | ||||
female | 369(16.6) | 14(4.3) | 352(20.1) | 30(5.4) | 1(0.4) | 0(0.0) | |||||
Marital status | 2.3 | 0.31 | 6.9 | 0.07 | |||||||
married | 2168(97.6) | 322(98.8) | 83(98.8) | 1705(97.3) | 545(98.9) | 254(98.1) | 68(100.0) | ||||
others | 54(2.4) | 4(1.2) | 1(1.2) | 48(2.7) | 6(1.1) | 5(1.9) | 0(0.0) | ||||
Educational level | 40.5 | <.0001 | 36.9 | <.0001 | |||||||
Bachelor degree or above | 194(8.7) | 8(2.5) | 3(3.6) | 160(9.1) | 34(6.2) | 8(3.1) | 3(4.4) | ||||
Junior college and senior high school | 1310(58.9) | 174(53.4) | 37(44.1) | 1041(59.4) | 309(56.1) | 143(55.2) | 28(41.2) | ||||
Junior high school or below | 718(32.3) | 144(44.2) | 44(52.4) | 552(31.5) | 208(37.8) | 108(41.7) | 37(54.4) | ||||
Monthly income (RMB) | 13.1 | 0.0416 | 19.4 | 0.0220 | |||||||
≤4000 | 561(25.3) | 104(31.9) | 25(29.8) | 442(25.2) | 150(27.2) | 80(30.9) | 17(25.0) | ||||
4000–6000 | 959(43.2) | 147(45.1) | 37(44.1) | 754(43.0) | 234(42.5) | 129(49.8) | 26(38.2) | ||||
6000–8000 | 509(22.9) | 54(16.6) | 17(20.2) | 409(23.3) | 119(21.6) | 35(13.5) | 17(25.0) | ||||
≥8000 | 193(8.7) | 21(6.4) | 5(5.9) | 148(8.4) | 48(8.7) | 15(5.8) | 8(11.8) | ||||
Smoke | 94.0 | <.0001 | 113.0 | <.0001 | |||||||
No | 1027(46.2) | 68(20.9) | 16(19.1) | 856(48.8) | 182(33.0) | 69(26.6) | 4(5.9) | ||||
yes | 1195(53.8) | 258(79.1) | 68(80.9) | 897(51.2) | 369(66.9) | 190(73.4) | 64(94.1) | ||||
Drink | 46.4 | <.0001 | 67.9 | <.0001 | |||||||
No | 1346(60.6) | 152(46.6) | 27(32.1) | 1105(63.0) | 284(51.5) | 113(43.6) | 22(32.4) | ||||
Yes | 876(39.4) | 174(53.4) | 57(67.9) | 648(36.9) | 267(48.5) | 146(56.4) | 46(67.7) | ||||
BMI(kg/m2) | 87.2 | <.0001 | 61.1 | <.0001 | |||||||
≤23 | 688(30.9) | 49(15.0) | 12(14.3) | 565(32.2) | 122(22.1) | 45(17.4) | 17(25) | ||||
23–27.5 | 1111(50.0) | 158(48.5) | 37(44.1) | 865(49.3) | 277(50.3) | 136(52.5) | 27(39.7) | ||||
> 27.5 | 423(19.0) | 119(36.5) | 35(41.7) | 323(18.4) | 152(27.6) | 78(30.1) | 24(35.3) | ||||
BP | 553.3 | <.0001 | 1321.8 | <.0001 | |||||||
Normal | 715(32.2) | 0(0.0) | 0(0.0) | 658(37.5) | 55(9.9) | 1(0.4) | 0(0.0) | ||||
Elevated | 964(43.4) | 73(22.4) | 0(0.0) | 906(51.7) | 131(23.8) | 0(0.0) | 0(0.0) | ||||
Hypertension | 543(24.4) | 253(77.6) | 84(100.0) | 189(10.8) | 365(66.2) | 258(99.6) | 68(100.0) | ||||
Workplace | 1.9 | 0.17 | 4.4 | 0.22 | |||||||
Ground | 1024(46.1) | 161(49.4) | 43(51.2) | 803(45.8) | 278(50.5) | 117(45.2) | 29(42.7) | ||||
Underground | 1198(53.9) | 165(50.6) | 41(48.8) | 950(54.2) | 273(49.6) | 142(54.8) | 39(57.4) | ||||
Physical activity level | 7.4 | 0.12 | 9.1 | 0.16 | |||||||
Inactive | 36(1.6) | 12(3.7) | 2(2.4) | 26(1.5) | 14(2.5) | 8(3.1) | 2(2.9) | ||||
Minimally Active | 672(30.2) | 100(30.7) | 22(26.2) | 520(29.7) | 169(30.7) | 88(33.9) | 16(23.5) | ||||
Health-enhancing physical activity | 1514(68.1) | 214(65.6) | 60(71.4) | 1207(68.9) | 368(66.8) | 163(62.9) | 50(73.) | ||||
Family history | 4.3 | 0.12 | 3.2 | 0.37 | |||||||
No | 1312(59.1) | 183(56.1) | 41(48.8) | 1031(58.8) | 324(58.8) | 147(56.8) | 33(48.5) | ||||
Yes | 910(40.9) | 143(43.9) | 43(51.2) | 722(41.2) | 227(41.2) | 112(43.2) | 35(51.5) |
Dietary patterns
Foods | Ground worker | Underground worker | ||||||
---|---|---|---|---|---|---|---|---|
Factor 1:Meat, Fried food | Factor 2:Refined grain, Tubers | Factor3: salt, processed vegetables | Factor 4: Cereal, Fruits | Factor1: Red meat, Viscera | Factor2: Beans, Vegetables, Tubers | Factor3: Cereal, Fruits, Dairy products | Factor4: salt, processed vegetables | |
Red meat | 0.71 | 0.69 | ||||||
Poultry | 0.64 | 0.56 | ||||||
Viscera | 0.59 | 0.59 | 0.25 | |||||
Fish and shrimp | 0.58 | 0.31 | 0.58 | 0.26 | ||||
Pork | 0.46 | 0.45 | ||||||
Fried dough | 0.36 | 0.34 | 0.32 | 0.35 | ||||
Tubers | 0.59 | 0.43 | 0.26 | |||||
Wheat Flour | 0.57 | 0.35 | ||||||
Beans and bean products | 0.56 | 0.20 | 0.59 | |||||
Vegetables | 0.55 | 0.20 | 0.57 | |||||
Pastry | 0.24 | 0.42 | 0.45 | |||||
Salted and preserved vegetables | 0.81 | 0.83 | ||||||
Pickled vegetables | 0.78 | 0.82 | ||||||
Vermicelli | 0.29 | 0.35 | 0.47 | |||||
Fruits | 0.68 | 0.50 | ||||||
Dairy products | 0.52 | 0.50 | ||||||
Nuts | 0.45 | 0.22 | 0.34 | |||||
Rice | 0.37 | 0.53 | ||||||
Cereal | 0.29 | 0.35 | 0.57 | |||||
Eggs and egg dishes | 0.27 | 0.32 | 0.23 | 0.24 | 0.26 | |||
Eigen value | 2.65 | 1.80 | 1.50 | 1.25 | 2.52 | 1.67 | 1.39 | 1.29 |
Dietary pattern | Factors | |||
---|---|---|---|---|
Factor1 | Factor2 | Factor3 | Factor4 | |
Ground worker | ||||
Healthy | −0.13 | − 0.49 | −1.11 | 0.61 |
High-fat and salt | 0.97 | −0.06 | 0.54 | 0.16 |
High-salt | −0.82 | 0.17 | 0.64 | 0.14 |
Refined grains | 0.03 | 0.43 | −0.68 | −1.36 |
Underground worker | ||||
Healthy | −0.13 | 0.01 | 0.43 | −1.27 |
Northern | −0.79 | 0.45 | 0.04 | 0.58 |
High-fat | 0.96 | 0.27 | −0.02 | 0.29 |
High-salt | −0.19 | −1.48 | −0.72 | 0.22 |
Dietary patterns and distributions of sample characteristics
Dietary patterns and 10-year CVD risk score levels
ICVD risk score level | Ground workers N = 1227 | P value | Underground workers N = 1404 | P value | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Healthy pattern | High-fat and salt pattern | High-salt pattern | Refined grains pattern | Healthy pattern | Northern Pattern | High-fat pattern | High-salt pattern | |||
N (%) | 273(22.2) | 359 (29.2) | 392(31.9) | 203(16.5) | 333(23.7) | 421(29.9) | 437(31.1) | 213(15.2) | ||
Model 1 | 1.00 | 2.52 (1.76–3.59) P < .0001 | 1.76 (1.23–2.52) P = 0.0020 | 3.69 (2.49–5.47) P < .0001 | <.0001 | 1.00 | 1.15 (0.85–1.57) P = 0.359 | 1.03 (0.76–1.39) P = 0.865 | 1.74 (1.23–2.48) P = 0.0019 | 0.0050 |
Model 2 | 1.00 | 1.48 (1.01–2.16) P = 0.0448 | 1.64 (1.12–2.40) P = 0.0113 | 2.17 (1.44–3.28) P = 0.0002 | 0.0016 | 1.00 | 1.17 (0.86–1.59) P = 0.315 | 0.98 (0.72–1.33) P = 0.888 | 1.68 (1.18–2.38) P = 0.0040 | 0.0066 |
Model 3 | 1.00 | 1.29 (0.88–1.91) P = 0.188 | 1.50 (1.02–2.21) P = 0.0399 | 1.92 (1.26–2.93) P = 0.0023 | 0.0168 | 1.00 | 1.05 (0.77–1.44) P = 0.762 | 0.98 (0.72–1.34) P = 0.896 | 1.65 (1.16–2.36) P = 0.0057 | 0.0086 |
ICVD risk score level | Ground workers N = 1228 | P value | Underground workers N = 1404 | P value | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Healthy pattern | High-fat and salt pattern | High-salt pattern | Refined grains pattern | Healthy pattern | Northern Pattern | High-fat pattern | High-salt pattern | |||
N (%) | 273(22.2) | 359 (29.2) | 392(31.9) | 204(16.6) | 333(23.7) | 421(29.9) | 437(31.1) | 213(15.2) | ||
Model 1 | 1.00 | 3.24 (1.91–5.53) P < .0001 | 2.44 (1.42–4.18) P = 0.0012 | 4.72 (2.69–8.25) P < .0001 | <.0001 | 1.00 | 1.34 (0.88–2.05) P = 0.173 | 1.13 (0.74–1.74) P = 0.572 | 1.89 (1.18–3.02) P = 0.0079 | 0.0356 |
Model 2 | 1.00 | 2.06 (1.19–3.56) P = 0.0097 | 2.33 (1.34–4.05) P = 0.0027 | 2.97 (1.68–5.28) P = 0.0002 | 0.0013 | 1.00 | 1.37 (0.89–2.09) P = 0.147 | 1.06 (0.69–1.64) P = 0.781 | 1.79 (1.12–2.87) P = 0.0155 | 0.0426 |
Model 3 | 1.00 | 1.97 (1.13–3.42) P = 0.0162 | 2.18 (1.25–3.80) P = 0.0062 | 2.64 (1.48–4.72) P = 0.0010 | 0.0113 | 1.00 | 1.21 (0.78–1.85) P = 0.394 | 1.11 (0.72–1.73) P = 0.637 | 1.76 (1.09–2.84) P = 0.0202 | 0.0881 |