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Table 7 Age-adjusted mean levels * of fasting lipids, FPG and BMI by examination cycle in small sample

From: Secular trends in serum lipid levels of a Middle Eastern adult population; 10 years follow up in Tehran lipid and glucose study

 

Exam 1 (1999–2001)

Exam 2 (2002–2005)

Exam 3 (2005–2008)

Exam 4 (2008–2011)

p-value for trend

Male

     

  TC†

5.14 (5.13-5.16)

5.07 (5.06-5.09)

5.00 (4.98-5.01)

4.93 (4.91-4.94)

<0.001

  HDL-C†

0.937 (0.935-0.938)

0.976 (0.975-0.978)

1.015 (1.014-1.017)

1.055 (1.053-1.056)

<0.001

  TG†

1.97 (1.96-1.98)

1.94 (1.92-1.95)

1.91 (1.88-1.92)

1.87 (1.86-1.89)

<0.001

  Non-HDL-C†

4.20 (4.19-4.22)

4.09 (4.08-4.10)

3.97 (3.96-3.99)

3.86 (3.85-3.87)

<0.001

  TG/HDL-C

2.33 (2.31-2.34)

2.21 (2.19-2.22)

2.08 (2.07-2.10)

1.96 (1.95-1.98)

<0.001

  TC/HDL-C

5.74 (5.73-5.76)

5.46 (5.44-5.47)

5.16 (5.15-5.18)

4.88 (4.86-4.9)

<0.001

  FPG†

5.14 (5.12-5.16)

5.30 (5.28-5.32)

5.45 (5.44-5.47)

5.62 (5.60-5.63)

0.014

  BMI (kg/m2)

25.85 (25.79-25.9)

26.36 (26.31-26.41)

26.85 (26.8-26.91)

27.37 (27.32-27.43)

<0.001

Female

     

  TC†

5.19 (5.16-5.21)

5.14 (5.12-5.17)

5.09 (5.07-5.11)

5.05(5.03-5.08)

<0.001

  HDL-C†

1.0945 (1.094-1.095)

1.149 (1.148-1.150)

1.203 (1.202-1.204)

1.258 (1.257-1.259)

<0.001

  TG†

1.63 (1.62-1.65)

1.62 (1.61-1.64)

1.61 (1.59-1.62)

1.60 (1.59-1.61)

<0.001

  Non-HDL-C†

4.09 (4.07-4.11)

4.00 (3.97-4.02)

3.89 (3.88-3.91)

3.80 (3.77-3.82)

<0.001

  TG/HDL-C

1.64 (1.63-1.66)

1.57 (1.56-1.58)

1.5 (1.48-1.5)

1.42 (1.40-1.43)

<0.001

  TC/HDL-C

4.97 (4.95-5.00)

4.72 (4.70-4.74)

4.46 (4.44-4.48)

4.21 (4.19-4.23)

<0.001

  FPG†

5.09 (5.07-5.11)

5.22 (5.20-5.24)

5.34 (5.32-5.36)

5.48 (5.46-5.50)

0.014

  BMI (kg/m2)

27.43 (27.35-27.5)

28.16 (28.08-28.23)

28.81 (28.74-28.9)

29.50 (29.43-29.58)

<0.001

  1. Abbreviations: BMI body mass index, FPG fasting plasma glucose, exam examination cycle, TC total cholesterol, HDL-C high-density lipoprotein cholesterol, non HDL-C non high-density lipoprotein cholesterol, TG triglycerides.
  2. *Values are age adjusted means (95% confidence intervals) from generalized estimating equations to account for correlated observations. Adjusted for age, propensity score and examination cycle.
  3. †mmol/L.