Table 5.
Relationships of weight self-perception with reporting refusal, measurement refusal, BMIsr under-reporting or BMIsr over-reporting (vs. correct reporting) and roles of covariates (N = 1559): odds ratio (OR) and 95% confidence interval (CI)
| |
Reporting refusal |
Measurement refusal |
BMIsr under-reporting (with change in BMI category; vs. correct reporting) |
BMIsr over-reporting (with change in BMI category; vs. correct reporting) |
||||
|---|---|---|---|---|---|---|---|---|
| |
OR |
% |
OR |
% |
OR |
% |
OR |
% |
| 95% CI | 95% CI | 95% CI | 95% CI | |||||
|
Weight perception |
|
|
|
|
|
|
|
|
| Feeling too fat (vs. feeling the right weight) |
|
|
|
|
|
|
|
|
| Crude OR |
2.39† |
|
1.46 |
|
1.80‡ |
|
2.61‡ |
|
| 1.25-4.56 |
|
0.97-2.18 |
|
1.25-2.58 |
|
1.56-4.36 |
|
|
| Model 1 |
2.38* |
100 |
1.46 |
‒ |
0.56† |
100 |
5.07‡ |
100 |
| 1.18-4.79 |
|
0.97-2.18 |
|
0.37-0.86 |
|
2.91-8.83 |
||
| Model 2 |
1.77 |
44 |
1.01 |
‒ |
0.55† |
2 |
8.40‡ |
-82 |
| 0.82-3.81 |
|
0.64-1.58 |
|
0.35-0.89 |
|
4.41-16.0 |
||
| Feeling too thin (vs. feeling the right weight) |
|
|
|
|
|
|
|
|
| Crude OR |
3.43‡ |
|
1.12 |
|
1.23 |
|
1.76 |
|
| 1.60-7.39 |
|
0.61-2.06 |
|
0.71-2.12 |
|
0.84-3.72 |
||
| Model 1 |
3.61† |
100 |
1.12 |
‒ |
6.32‡ |
100 |
1.17 |
‒ |
| 1.63-8.01 |
0.61-2.06 |
2.91-13.7 |
0.52-2.64 |
|||||
| Model 2 |
3.35† |
10 |
1.05 |
‒ |
7.23‡ |
-17 |
1.00 |
‒ |
| 1.45-7.74 | 0.55-2.00 | 3.26-16.0 | 0.41-2.46 | |||||
*p < 0.05, †p < 0.01, ‡p < 0.001.
BMI: Body mass index; BMIsr: self-reported BMI.
Model 1: adjusted for measured BMI (except for measurement refusal).
Model 2: with further adjustment for socioeconomic factors and health-related and behavioural factors (Table 4).
% = Reduction (positive%) or increase (negative%) in OR computed with the following formula: (OR model 1–HR model2)/(OR model 1–1).