Table 3. Multivariate linear regression models* for cardiovascular risk factors of Indian Migration Study population comparing non-vegetarians with vegetarians.
Cardiovascular risk factors (Reference- vegetarian) | Model I Robust standard error accounting for sibling clusters | Model II Adjusted for age, sex, SLI and Sib-Pair | Model III** Adjusted for age, sex, SLI, BMI, tobacco, alcohol, site, migration status, energy, physical activity and Sib-Pair | |||
β(95% CI) | p-value | β (95% CI) | p-value | β(95% CI) | p-value | |
Total cholesterol (mmol/L) | 0.08 (0.02 to 0.2) | 0.006 | 0.1 (0.07 to 0.2) | <0.0001 | 0.10 (0.03 to 0.2) | 0.006 |
Triglycerides (mmol/L) | 0.07 (0.03 to 0.1) | <0.0001 | 0.1 (0.06 to 0.2) | <0.0001 | 0.05(0.007 to 0.01) | 0.02 |
LDL (mmol/L) | 0.08 (0.02 to 0.1) | 0.004 | 0.1 (0.05 to 0.2) | <0.0001 | 0.06 (0.005 to 0.1) | 0.03 |
HDL (mmol/L) | −0.02 (−0.03 to −0.009) | 0.001 | −0.02(−0.03 to −0.006) | 0.005 | 0.01 (−0.003 to 0.03) | 0.13 |
Blood glucose (mmol/L) | −0.1(−0.2 to −0.03) | 0.005 | −0.05 (−0.13 to 0.01) | 0.13 | 0.07(−0.01 to 0.2) | 0.09 |
Systolic BP (mmHg) | 2.2 (1.2 to 3.1) | <0.0001 | 2.5 (1.6 to 3.4) | <0.0001 | 0.9 (−0.08 to 1.9) | 0.07 |
Diastolic BP (mmHg) | 1.9 (1.3 to 2.5) | <0.0001 | 2.3 (1.7 to 2.9) | <0.0001 | 0.7(0.07 to 1.2) | 0.02 |
* Robust standard error.
** When models were run using log-transformed outcome variables, p-value significance levels remained the same. Similarly when models were run after adjusting for use of any regular medication, conclusions remained the same.