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Table 3 Comparison of dietary and serum cholesterol levels by different educational groups

From: Longitudinal and nonlinear relations of dietary and Serum cholesterol in midlife with cognitive decline: results from EMCOA study

Variables

Elementary school (n = 418)

Junior middle school (n = 925)

Senior middle school (n = 764)

College and above (n = 407)

P value

Dietary cholesterol, mg/d

255.5 (160.3, 367.0)

262.2 (176.5, 370.2)

296.0 (207.8, 392.7)

327.7 (212.8, 412.2)

0.0001*

Egg intake, g/d

39.6 (18.3, 59.5)

35.8 (18.3, 59.0)

48.4 (23.7, 60.4)

52.8 (25.8, 60.9)

0.0001*

TC, mmol/L

4.61 (3.90, 5.20)

4.51 (3.80, 5.28)

4.53 (3.78, 5.20)

4.62 (3.83, 5.30)

0.518

TG, mol/L

1.40 (1.00, 1.90)

1.48 (1.02, 2.05)

1.49 (1.10, 2.15)

1.45 (1.07, 2.10)

0.0145*

HDL-C, mmol/L

1.30 (1.10, 1.50)

1.27 (1.10, 1.50)

1.24 (1.09, 1.43)

1.26 (1.10, 1.47)

0.0413*

LDL-C, mmol/L

2.80 (2.24, 3.30)

2.76 (2.13, 3.30)

2.76 (2.20, 3.39)

2.86 (2.27, 3.44)

0.0962

Non-HDL-C, mmol/L

3.29 (2.70, 3.83)

3.22 (2.61, 3.85)

3.25 (2.56, 3.88)

3.26 (2.72, 3.95)

0.5925

LDL-C/HDL-C

2.13 (1.72, 2.57)

2.15 (1.67, 2.67)

2.22 (1.73, 2.75)

2.25 (1.75, 2.77)

0.0089*

  1. Abbreviations: TC total cholesterol, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, TG triglycerides, Non-HDL-C non-high-density lipoprotein cholesterol
  2. Elementary school: ≤6 years of education; Junior middle school: 7–9 years of education; Senior middle school: 10–12 years of education; College and above: at least college or university; ≥13 years of education)
  3. ∗P < 0.05