|  | Model 1a |  | Model 2b |  | Model 3c |  | Model 4d |  |
 | Quartilee | β | 95% CI | β | 95% CI | β | 95% CI | β | 95% CI |
Difference in BMI (kg/m2) | Q1 (0.0–12.7%) | ref |  | ref |  | ref |  | ref |  |
 | Q2 (12.7–16.9%) | 0.53** | 0.41, 0.65 | 0.48** | 0.36, 0.59 | 0.37** | 0.25, 0.49 | 0.35** | 0.23, 0.47 |
 | Q3 (16.9–23.7%) | 1.21** | 1.09, 1.33 | 1.04** | 0.93, 1.16 | 0.83** | 0.70, 0.95 | 0.80** | 0.67, 0.93 |
 | Q4 (23.7–44.6%) | 1.54** | 1.42, 1.66 | 1.30** | 1.18; 1.42 | 1.03** | 0.89; 1.17 | 0.99** | 0.85, 1.14 |
 |  | Model 1a |  | Model 2b |  | Model 3c |  | Model 4d |  |
 |  | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI |
Odds of obesity (BMI ≥ 30 kg/m2) | Q1 (0.0–12.7%) | ref |  | ref |  | ref |  | ref |  |
 | Q2 (12.7–16.9%) | 1.28** | 1.20, 1.36 | 1.26** | 1.18, 1.34 | 1.20** | 1.12, 1.28 | 1.19** | 1.11, 1.27 |
 | Q3 (16.9–23.7%) | 1.65** | 1.55, 1.76 | 1.57** | 1.48, 1.67 | 1.43** | 1.34, 1.53 | 1.42** | 1.32, 1.52 |
 | Q4 (23.7–44.6%) | 1.84** | 1.73, 1.96 | 1.70** | 1.60, 1.81 | 1.53** | 1.43, 1.65 | 1.51** | 1.40, 1.64 |
 |  | Model 1a |  | Model 2f |  | Model 3c |  | Model 4d |  |
 |  | OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI |
Odds of frequent consumption of processed meatg (> once per week) | Q1 (0.0–12.7%) | ref |  | ref |  | ref |  | ref |  |
Q2 (12.7–16.9%) | 1.10* | 1.04, 1.16 | 1.15** | 1.08, 1.22 | 1.10* | 1.04, 1.17 | 1.10* | 1.03, 1.16 | |
Q3 (16.9–23.7%) | 1.18** | 1.12, 1.25 | 1.29** | 1.22, 1.36 | 1.19** | 1.12, 1.27 | 1.18** | 1.11, 1.26 | |
Q4 (23.7–44.6%) | 1.29** | 1.22, 1.37 | 1.45** | 1.36, 1.53 | 1.30** | 1.22, 1.39 | 1.28** | 1.19, 1.38 |