Table 3.

Multivariable-adjusted mean differences (95% CI) between self-reported and measured BMI, weight and height, the WCHFS (n = 243)

Factorsa	Multivariable-adjusted mean differences (95% CIs) between self-reported and measured values ofb
	BMI, kg/m2	P	Weight, kg	P	Height, cm	P
Age categories
<55	−0.30 (−0.59, 0.00)	Ref	--		0.77 (0.20, 1.35)	Ref
55–<65	−0.30 (−0.60, −0.00)	0.97	--		0.92 (0.34, 1.50)	0.72
≥65	−0.73 (−1.10, −0.36)	0.08	--		2.13 (1.41, 2.85)	0.005
Smoking status
Never	−0.47 (−0.72, −0.22)	Ref	--		0.11 (−0.77, 1.00)	Ref
Former	−0.56 (−0.89, −0.23)	0.69	--		1.55 (0.90, 2.19)	0.49
Current	0.10 (−0.36, 0.55)	0.03	--		1.26 (0.77, 1.74)	0.03
Tumor grade
I	−0.05 (−0.60, 0.51)	Ref	--		0.39 (−0.68, 1.47)	Ref
II	−0.64 (−0.98, −0.31)	0.07	--		1.74 (1.09, 2.39)	0.04
III	−0.44 (−0.73, −0.15)	0.22	--		1.09 (0.53, 1.65)	0.26
Unknown	−0.16 (−0.58, 0.25)	0.74	--		0.85 (0.05, 1.65)	0.51
Measured BMI categories
<25 kg/m2	0.36 (−0.23, 0.95)	Ref	1.33 (0.39, 2.26)	Ref	0.29 (−0.85, 1.42)	Ref
25–29.9 kg/m2	−0.35 (−0.68, −0.02)	0.04	0.20 (−0.34, 0.74)	0.04	1.33 (0.69, 1.97)	0.12
30–34.9 kg/m2	−0.20 (−0.55, 0.16)	0.11	0.16 (−0.41, 0.74)	0.04	0.75 (0.06, 1.44)	0.49
35–39.9 kg/m2	−0.80 (−1.21, −0.40)	0.002	−0.32 (−0.97, 0.33)	0.005	1.59 (0.80, 2.37)	0.07
≥40 kg/m2	−0.90 (−1.39, −0.41)	0.001	−0.03 (−0.82, 0.75)	0.03	1.57 (0.63, 2.52)	0.09
Post-diagnosis weight change
≥2% loss	--		0.64 (0.01, 1.26)	0.04	--
±2% stable	--		0.31 (−0.12, 0.74)	Ref	--
>2% gain	--		−0.39 (−0.92, 0.13)	0.40	--

^aOnly factors with P < 0.10 were retained in the final models and were presented.

^bDifference was calculated as self-reported minus measured value.