Abstract P72 Table Multiple linear regression analyses showing the differences in LF between white and Asian children before and after adjustment*

LFT	Unadjusted β coefficient (95% CI) p value	Adjusted* β coefficient (95% CI) p value
LCI (l)†	0.09 (−0.15 to 0.33); 0.47	0.02 (−0.2 to 0.25); 0.83
FRC (l)†	−0.07 (−0.15 to 0.01); 0.447	−0.03 (−0.1 to 0.03); 0.303
sRaw (kPal/s)†	−0.04 (−0.14 to −0.06); 0.447	−0.02 (−0.122 to 0.086); 0.734
FVC (l)‡	−0.25 (−0.38 to −0.11); 0.001	−0.14 (−0.25 to −0.03); 0.013
FEV₁ (l)‡	−0.21 (−0.32 to −0.10); <0.0005	−0.15 (−0.24 to −0.07); 0.001
FEF_75–25 (l/s)‡	−0.19 (−0.34 to 0.02); 0.078	−0.22 (−0.43 to −0.01); 0.04

*Adjusted for age, sex and height. †n = 35 whites, 31 Asians; ‡n = 28 whites, 25 Asians. FRC, function residual capacity; LCI, lung clearance index; LF, lung function; sRAW, specific airways resistance.