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Table 3 Effects of time varying obesity phenotypes and baseline covariates on the incidence of CVD among males using the joint modelling approach

From: The effect of obesity phenotype changes on cardiovascular outcomes in adults older than 40 years in the prospective cohort of the Tehran lipids and glucose study (TLGS): joint model of longitudinal and time-to-event data

Male (2892)

CVD from Bayesian Cox model

Obesity varying from Bayesian logit mixed effects model

Variables

 

Mean (SD)

HR (95% CI)

P-value

Mean (SD)

OR (95% CI)

P-value

Education (Reference: illiterate)

Literate

-0.36 (0.11)

0.69 (0.56 to 0.87)

0.002

-

-

-

Smoking status (Reference: Never smoker)

Past smoker

0.38 (0.10)

1.46 (1.18 to 1.80)

<0.001

-0.49 (0.21)

0.61 (0.39 to 0.95)

0.02

 

Current smoker

0.32 (0.13)

1.37 (1.07 to 1.80)

0.01

-1.33 (0.18)

0.26 (0.18 to 0.37)

<0.001

Physical activity (Reference: Highest)

Lowest

-0.15 (0.08)

0.86 (0.72 to 1.01)

0.07

0.42 (0.17)

1.52 (1.06 to 2.05)

0.02

Family history of diabetes (Reference: No)

Yes

-0.28 (0.12)

0.75 (0.58 to 0.95)

0.01

1.23 (0.20)

3.42 (2.36 to 5.25)

<0.001

Family history of CVD (Reference: No)

Yes

0.10 (0.11)

1.10 (0.89 to 1.37)

0.35

0.04 (0.23)

1.04 (0.67 to 1.63)

0.87

Obesity phenotypes (Reference: Normal)

Abnormal

0.05 (0.17)

1.05 (0.76 to 1.49)

0.76

-

-

-

Age (year)

 

-0.13 (0.26)

0.87 (0.49 to 1.29)

0.63

0.05 (0.004)

1.05 (1.04 to 1.06)

<0.001

The associations of study variables with incidence of CVD among females using survival and longitudinal models

Female (3458)

CVD from Bayesian Cox model

Obesity varying from Bayesian logit mixed effects model

Variables

 

HR (95% CI)

P-value

OR (95% CI)

P-value

Education (Reference: illiterate)

Literate

0.78 (0.64 to 0.94)

0.009

-

-

Smoking status (Reference: Never smoker)

Past smoker

1.80 (1.22 to 2.66)

0.002

1.27 (0.28 to 5.58)

0.75

 

Current smoker

0.97 (0.54 to 1.72)

0.92

0.43 (0.17 to 1.08)

0.07

Physical activity (Reference: Highest)

Lowest

1.08 (0.92 to 1.27)

0.29

1.05 (0.70 to 1.55)

0.80

Family history of diabetes (Reference: No)

Yes

1.51 (1.29 to 1.77)

<0.001

1.67 (1.06 to 2.63)

0.02

Family history of CVD (Reference: No)

Yes

1.42 (1.18 to 1.71)

<0.001

1.84 (0.99 to 3.45)

0.05

Obesity phenotypes (Reference: Normal)

Abnormal

2.29 (1.48 to 3.54)

<0.001

-

-

Age (year)

 

1.05 (1.05 to 1.06)

<0.001

1.13 (1.12 to 1.15)

<0.001

  1. α: association between survival model and longitudinal model, p-value<0.001
  2. Abbreviations CVD: cardiovascular disease; HR: hazard ratio; OR: odds ratio; CI: credible interval