Table 4 Incidence and hazard ratios (HR) for cardiovascular diseases (CVD) and total mortality depending on the MCM6-rs3754686 proxy for milk intake after 4.8 years of median follow-up in the PREDIMED trial.

From: Associations of the MCM6-rs3754686 proxy for milk intake in Mediterranean and American populations with cardiovascular biomarkers, disease and mortality: Mendelian randomization

 

CVD incidence (men + women): n = 7,185

Model 3

Model 4

Cases

Non-cases

person-y

Incidence rate*

Model 1

Model 2

HR

95% CI

P-value

HR

95% CI

P-value

P-value

P-value

MCM6 genotypes**

 TT

74

1908

8612

8.6

1.00

(reference)

 

1.00

(reference)

   

 CT

136

3410

15361

8.9

1.04

(0.79–1.39)

0.768

1.02

(0.77–1.36)

0.890

0.941

0.945

 CC

57

1600

7016

8.1

0.94

(0.66–1.33)

0.733

0.95

(0.69–1.35)

0.764

0.981

0.815

 TT (ref.)***

    

1.00

(reference)

 

1.00

(reference)

   

 (CC + TC) vs TT

    

1.01

(0.77–1.33)

0.932

1.00

(0.76–1.31)

0.989

0.928

0.969

 Per variant allele (T)****

    

1.03

(0.87–1.22)

0.767

1.02

(0.86–1.22)

0.785

0.792

0.829

P§-interaction sex*MCM6 polymorphism: 0.005

 

Total mortality (men + women): n = 7,185

 

Model 1

Model 2

Model 3

Model 4

MCM6 genotypes**

 TT

104

1878

8622

12.1

1.00

(reference)

 

1.00

(reference)

   

 CT

139

3407

15375

9.0

0.73

(0.58–0.97)

0.029

0.75

(0.58–0.97)

0.028

0.028

0.030

 CC

79

1579

7027

11.2

0.89

(0.86–1.19)

0.424

0.89

(0.66–1.21)

0.464

0.455

0.549

 TT (ref.)***

    

1.00

(reference)

 

1.00

(reference)

   

 (CC + CT) vs TT

    

0.80

(0.63–1.01)

0.057

0.79

(0.62–1.01)

0.058

0.057

0.068

 Per variant allele (T)****

    

1.08

(0.92–1.26)

0.338

1.07

(0.92–1.26)

0.378

0.371

0.446

P§§-interaction sex*MCM6 polymorphism: 0.032

  1. *Crude incidence rates were expressed per 1000 person-years of follow-up.
  2. **Codominant model. ***Recessive model.****Additive model.
  3. We used multivariable Cox regression models with length of follow-up as the primary time variable. Separate models were fitted for CVD and total mortality to estimate the corresponding HRs depending on the model.
  4. Model 1: Adjusted for sex, age, field center and dietary intervention group.
  5. Model 2: Model 1 adjusted for variables in model 1 plus BMI, diabetes, drinking, smoking, physical activity, medication (hypertension, dyslipidemia and glucose) and total energy intake at baseline.
  6. Model 3: Model 2 adjusted for variables in model 2 plus total milk intake. Model 4: Model 3 additionally adjusted for total fat and carbohydrates at baseline.
  7. §P-value for interaction sex*MCM6 polymorphism in determining CVD incidence, obtained in Model 2. Further adjustments did not change the statistical significance.
  8. §§P-value for interaction sex*MCM6 polymorphism in determining mortality, obtained in Model 2. Further adjustments did not change the statistical significance.