|
Household Income (£/year)
|
Model 1a
|
Model 2b
|
Model 3c
|
Model 4d
|
β
|
95% CI
|
β
|
95% CI
|
β
|
95% CI
|
β
|
95% CI
|
Difference in BMI (kg/m2)
|
> 100,000
|
ref
| |
ref
| |
ref
| |
ref
| |
|
52,000–100,000
|
0.71**
|
0.55, 0.87
|
0.60**
|
0.45, 0.76
|
0.44**
|
0.29, 0.60
|
0.33**
|
0.17, 0.48
|
|
31,000–51,999
|
1.17**
|
1.01, 1.33
|
0.95**
|
0.80, 1.11
|
0.67**
|
0.51, 0.83
|
0.51**
|
0.35, 0.67
|
|
< 31,000
|
1.73**
|
1.58, 1.88
|
1.36**
|
1.21, 1.51
|
0.85**
|
0.69, 1.01
|
0.68**
|
0.52, 0.84
|
| |
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)
|
> 100,000
|
ref
| |
ref
| |
ref
| |
ref
| |
|
52,000–100,000
|
1.42**
|
1.29, 1.56
|
1.37**
|
1.24, 1.50
|
1.29**
|
1.17, 1.41
|
1.22**
|
1.11, 1.34
|
|
31,000–51,999
|
1.70**
|
1.55, 1.86
|
1.57**
|
1.43, 1.72
|
1.41**
|
1.28, 1.54
|
1.32**
|
1.20, 1.45
|
|
< 31,000
|
2.29**
|
2.10, 2.49
|
2.02**
|
1.84, 2.20
|
1.66**
|
1.51, 1.82
|
1.54**
|
1.41, 1.69
|
| |
Model 1a
|
Model 2e
|
Model 3c
|
Model 4d
|
OR
|
95% CI
|
OR
|
95% CI
|
OR
|
95% CI
|
OR
|
95% CI
|
Odds of frequent consumption of processed meatf (> once per week)
|
> 100,000
|
ref
| |
ref
| |
ref
| |
ref
| |
52,000–100,000
|
1.08*
|
1.00, 1.16
|
1.17**
|
1.09, 1.27
|
1.13*
|
1.05, 1.22
|
1.10*
|
1.02, 1.19
|
31,000–51,999
|
1.01
|
0.94, 1.09
|
1.24**
|
1.15, 1.34
|
1.19**
|
1.10, 1.29
|
1.14*
|
1.06, 1.24
|
< 31,000
|
1.01
|
0.94, 1.08
|
1.38**
|
1.28, 1.49
|
1.30**
|
1.20, 1.41
|
1.25**
|
1.15, 1.35
|
- Measure of interaction (fast-food exposure*household income with difference in BMI) on a multiplicative scale based on an F-test, P = 0.230 | *p < 0.05; ** p < 0.001 | a Model 1 adjusts for number in household | b Model 2 additionally adjusts for age, sex, ethnicity, smoking status | c Model 3 additionally adjusts for highest educational attainment and UK Biobank assessment centre attended | d Model 4 additionally adjusts for fast-food outlet proportion and the sum of counts of Supermarkets, Restaurants, Convenience stores, Cafes and Specialist Stores within 1 mile Euclidean (straight line) radius buffers of home address | e Model 2 adjusts for age, sex, ethnicity | f Includes bacon, ham, sausages, meat pies, kebabs, burgers, chicken nuggets