Table 4 Comparison of 1988/84 and 2005/08 attitudes towards weight status by BMI categories (%)
From: Temporal changes in bias of body mass index scores based on self-reported height and weight
Do you consider yourself? | P-valuea | |||
|---|---|---|---|---|
Underweight | About right | Overweight | ||
Unadjusted | ||||
NHANES 1988–1994 | 5.8 | 41.5 | 52.6 | |
NHANES 2005–2008 | 5.0 | 39.3 | 55.7 | <0.003 |
Measured BMI (kg m−2) | ||||
<18.5 | ||||
NHANES 1988–1994 | 50.0 | 50.0 | 0.0 | |
NHANES 2005–2008 | 56.6 | 41.8 | 1.6 | <0.047 |
18.5<25 | ||||
NHANES 1988–1994 | 9.7 | 64.7 | 25.6 | |
NHANES 2005–2008 | 10.2 | 71.2 | 18.6 | <0.001 |
25<30 | ||||
NHANES 1988–1994 | 0.6 | 32.8 | 66.6 | |
NHANES 2005–2008 | 1.1 | 38.7 | 60.2 | <0.001 |
BMI 30<35 | ||||
NHANES 1988–1994 | 0.5 | 9.7 | 89.7 | |
NHANES 2005–2008 | 0.4 | 12.9 | 86.7 | <0.041 |
BMI 35<40 | ||||
NHANES 1988–1994 | 0.0 | 2.9 | 97.1 | |
NHANES 2005–2008 | 0.4 | 4.4 | 95.2 | <0.107 |
BMI 40+ | ||||
NHANES 1988–1994 | 0.1 | 2.3 | 97.6 | |
NHANES 2005–2008 | 0.1 | 2.2 | 97.7 | >0.915 |
Would you like to weigh less, more, or stay about the same? | ||||
Less | Same | More | ||
Unadjusted | ||||
NHANES 1988–1994 | 60.6 | 31.5 | 8.0 | |
NHANES 2005–2008 | 64.8 | 28.0 | 7.2 | <0.001 |
