Table 2.
Discrepancies in self-reported weights and heights and end-digit rounding preference by measured BMI category separately for men and women
| Weight | Height | |||||||||
| Measured BMI Categorya | N (%) |
Discrepancy (SRb - Measured) Kg, mean (95%CI) |
Percent reporting end-digit 0 or 5 % (95% CI) |
Discrepancy (SRb - Measured) cm, mean (95%CI) |
Percent reporting end-digit 0 or 5 % (95% CI) |
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| Men | ||||||||||
| Underweight (<18.5) | 5 | (1) | 1.13 | (0.40, 1.86)* | 0% | (0%, 52%) | -1.40 | (-5.78, 2.98) | 0% | (0%, 52%) |
| Normal (18.5-<23) | 133 | (37) | -0.08 | (-0.46, 0.29) | 29% | (21%, 37%)* | 1.18 | (0.80, 1.56)*** | 32% | (24%, 41%)*** |
| Overweight (23-<25) | 88 | (25) | -1.34 | (-2.18, -0.50)** | 36% | (26%, 47%)*** | 1.69 | (1.20, 2.17)*** | 36% | (26%, 47%)*** |
| Obese (25+) | 132 | (37) | -1.58 | (-2.27, -0.89)*** | 36% | (28%, 45%)*** | 1.92 | (1.57, 2.27)*** | 43% | (35%, 52%)*** |
| Women | ||||||||||
| Underweight (<18.5) | 36 | (9) | 1.18 | (0.30, 2.06)** | 19% | (8%, 36%) | 1.65 | (0.79, 2.51)*** | 44% | (28%, 62%)*** |
| Normal (18.5-<23) | 229 | (60) | -0.38 | (-0.59, -0.18)*** | 23% | (17%, 29%) | 1.13 | (0.93, 1.34)*** | 29% | (23%, 35%)*** |
| Overweight (23-<25) | 54 | (14) | -0.94 | (-1.45, -0.42)*** | 33% | (21%, 47%)* | 1.36 | (0.86, 1.87)*** | 39% | (26%, 53%)*** |
| Obese (25+) | 64 | (17) | -2.21 | (-2.89, -1.53)*** | 33% | (22%, 46%)* | 1.83 | (1.30, 2.35)*** | 41% | (29%, 54%)*** |
a Using Thai classification (15)
b SR = self-reported
*p < 0.05; **p < 0.01; ***p < 0.001 (for discrepancies, p-values were from paired t-tests; for end-digit tests, p-values were from exact binomial tests of proportion = 0.20)