Table 4. Difference Between Measured and Predicted Values Based on the Validation Subset.

	FVC*	FEV1*	PEF*	MMEF*
Males
Measured vs. Ya-nan Ma et al.	−0.01±0.06,0.693	0.00±0.06,0.784	−0.08±0.14,0.030	0.04±0.10,0.120
Kui Feng et al.	0.69±0.07,<0.05	0.62±0.06,<0.05	1.56±0.15,<0.05	0.28±0.10,<0.05
Meng-Chiao Tsai et al.	−0.24±0.07,<0.05	−0.21±0.07,<0.05	323.98±7.73,<0.05	−0.07±0.11,0.011
Masato Takase et al.	0.50±0.06,<0.05	0.36±0.06,<0.05	0.67±0.15,<0.05	1.55±0.11,<0.05
Johnl Hankinson et al.	0.65±0.07,<0.05	0.36±0.06<0.05	0.97±0.14<0.05	−0.28±0.10,<0.05
Ip MS et al.	0.40±0.06,<0.05	0.27±0.06,<0.05		0.47±0.010,<0.05
Females
Measured vs. Ya-nan Ma et al.	0.05±0.05,<0.05	−0.04±0.05,<0.05	−0.06±0.13,0.046	0.09±0.09,<0.05
Kui Feng et al.	0.47±0.05,<0.05	0.43±0.05,<0.05	1.82±0.13,<0.05	0.45±0.10,<0.05
Meng-Chiao Tsai et al.	−0.05±0.05,<0.05	−0.05±0.05,<0.05	286.36±5.30,<0.05	0.20±0.09,<0.05
Masato Takase et al.	0.40±0.05,<0.05	1.24± 0.05,<0.05	0.62± 0.13,<0.05	0.09± 0.09,<0.05
Johnl Hankinson et al.	0.65±0.05,<0.05	0.43±0.05,<0.05	−13.48±0.29,<0.05	14.82±0.28,<0.05
Ip MS et al.	0.38± 0.05,<0.05	0.31± 0.05,<0.05		0.70± 0.09,<0.05

^*Data are presented as mean of difference (predicted-measured) ±95% CI (confidence interval) of difference, and P value.