Table 2.
Proportion of concentrations classification of TC, TG, HDL-C and LDL-C in Chinese coal miners (mmol/L)
| Variable (Characteristics) | TC | LDL-C | HDL-C | TG | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <5.2 | 5.2–6.2 | ≥6.2 | <2.6 | 2.6–3.4 | 3.4–4.1 | ≥4.1 | <1.0 | ≥1.0 | <1.7 | 1.7–2.3 | ≥2.3 | |
| All, n(%) | 2672(61.92) | 1195(27.69) | 448(10.38) | 1143(26.33) | 1675(38.59) | 1005(23.15) | 518(11.93) | 1115(25.84) | 3200(74.16) | 2569(59.54) | 700(16.22) | 1046(24.24) |
| Age(years), n(%) | ||||||||||||
| < 40 | 1254(66.88) | 471(25.12) | 150(8.00) | 559(29.72) | 754(40.09) | 370(19.67) | 198(10.53) | 509(27.15) | 1366(72.85) | 1170(62.40) | 285(15.20) | 420(22.40) |
| ≥ 40 | 1418(58.11) | 724(29.67) | 298(12.21) | 584(23.74) | 921(37.44) | 635(25.81) | 320(13.01) | 606(24.84) | 1834(75.16) | 1399(57.34) | 415(17.01) | 626(25.66) |
| P value | <0.001 | <0.001 | 0.086 | 0.001 | ||||||||
| Gender, n(%) | ||||||||||||
| Male | 2234(61.29) | 1024(28.09) | 387(10.62) | 913(24.97) | 1409(38.54) | 876(23.96) | 458(12.53) | 1045(28.67) | 2600(71.33) | 2061(56.54) | 617(16.93) | 967(26.53) |
| Female | 438(65.47) | 171(25.56) | 60(8.97) | 230(33.63) | 266(38.89) | 128(18.71) | 60(8.77) | 70(10.46) | 599(89.54) | 508(75.93) | 83(12.41) | 78(11.66) |
| P value | 0.04 | <0.001 | <0.001 | <0.001 | ||||||||
| Working type, n(%) | ||||||||||||
| Intense physical workers | 711(63.77) | 305(27.35) | 99(8.88) | 323(28.74) | 446(39.68) | 242(21.53) | 113(10.05) | 238(21.35) | 877(78.65) | 725(65.02) | 164(14.71) | 226(20.27) |
| Light physical workers | 1277(61.39) | 577(27.74) | 226(10.87) | 539(25.73) | 803(38.33) | 499(23.82) | 254(12.12) | 596(28.65) | 1484(71.35) | 1174(56.44) | 357(17.16) | 549(26.39) |
| Mental workers | 652(61.74) | 292(27.65) | 112(10.61) | 267(25.24) | 402(38.00) | 247(23.35) | 142(13.42) | 268(25.38) | 788(74.62) | 628(59.47) | 175(16.57) | 253(23.96) |
| P value | 0.205 | 0.007 | <0.001 | <0.001 | ||||||||
| Workpalce, n(%) | ||||||||||||
| Underground | 592(65.56) | 232(25.69) | 79(8.75) | 266(29.30) | 354(38.99) | 200(22.03) | 88(9.69) | 209(23.15) | 694(76.85) | 582(64.45) | 122(13.51) | 199(22.04) |
| Front-line | ||||||||||||
| Underground auxiliary | 923(61.90) | 416(27.90) | 152(10.19) | 360(24.05) | 618(41.28) | 341(22.78) | 178(11.89) | 414(27.77) | 1077(72.23) | 820(55.00) | 272(18.24) | 399(26.76) |
| Ground | 654(58.50) | 333(29.79) | 131(11.72) | 293(26.21) | 400(35.78) | 278(24.87) | 147(13.15) | 304(27.19) | 814(72.81) | 681(60.91) | 174(15.56) | 263(23.52) |
| Office | 501(62.78) | 211(26.44) | 86(10.78) | 208(26.07) | 300(37.59) | 185(23.18) | 105(13.16) | 188(23.56) | 610(76.44) | 484(60.65) | 131(16.42) | 183(22.93) |
| P value | 0.011 | 0.015 | 0.023 | <0.001 | ||||||||
Data are n (%). TC total cholesterol, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, TG triglyceride