Table 1

Summary statistics by gender

		Men				Women
		Number^1-151	Q₁			Q₂	Q₃	mean	SD	Number	Q₁	Q₂	Q₃	mean	SD
Height (cm)
Measured (H_M)	865	168	172	177	172.3	6.99		969	155	160	164	159.7	6.38
Self reported (H_R)	819	165	170	175	171.1	7.19		929	154	158	163	158.1	6.66
Difference (H_D = H_M − H_R)	819	0	1	3	1.3^**	2.50		928	0	2	3	1.7^**	2.37
% difference (100H_D/H_M)	819	0.0	0.6	1.6	0.7	1.45		928	0.0	1.2	1.9	1.0	1.51
Weight (kg)
Measured (W_M)	861	69.3	78.0	87.0	78.85	13.927		968	57.7	64.4	73.7	67.24	14.381
Self reported (W_R)	783	69.9	77.2	86.3	78.08	13.275		872	57.2	63.6	71.7	65.80	13.820
Difference (W_D = W_M − W_R)	779	−1.3	0.5	2.5	0.63^**	3.451		870	−0.4	0.8	2.1	0.95^**	2.636
% difference (100W_D/W_M)	779	−1.7	0.6	3.0	0.6	4.51		870	−0.6	1.2	3.1	1.3	3.78
Body mass index (kg/m²)
Measured (B_M = W_M/H² _M)	861	23.68	26.23	29.01	26.53	4.238		968	22.65	25.40	28.77	26.38	5.551
Self reported (B_R = W_R/H² _M)	769	23.74	26.10	29.27	26.67	4.083		862	22.73	25.35	29.04	26.38	5.451
Difference (B_D = B_M − B_R)	765	−0.97	−0.18	0.52	−0.19^1-150	1.403		860	−0.88	−0.25	0.49	−0.17^1-150	1.336
% difference (100B_D/B_M)	765	−3.7	−0.7	2.0	−0.9	5.39		860	−3.5	−1.0	1.9	−0.8	4.98

↵1-151 Sample size varied because of missing values; Q_1-3, quartiles;
↵1-150 p=0.0002, ^**p<0.0001 significance of differences between measured and self reported values by pairedt test.