Table 5. The differences of predicted value and measured values of other equations.

		Observed value	Predicted value	Observed–Predicted	p-value
Park's equation8	Total	21.38±5.63	22.64±4.90	−1.23±3.54	<0.001
	Male	26.89±5.25	27.31±4.92	−0.42±3.68	0.494
	Female	18.83±3.62	20.48±3.04	−1.64±3.43	<0.001
Burrow's equation11	Total	21.38±5.63	21.51±4.34	−0.13±3.98	0.730
	Male	26.89±5.25	25.04±5.39	1.86±4.57	0.018
	Female	18.83±3.62	19.88±2.43	−1.05±3.32	0.006
Morris/Crapo's equation12	Total	21.38±5.63	28.45±6.01	−7.07±3.62	<0.001
	Male	26.89±5.25	35.22±4.72	−8.33±3.82	<0.001
	Female	18.83±3.62	25.31±2.95	−7.86±3.40	<0.001
Paoletti's equation13	Total	21.38±5.63	29.49±5.17	−8.11±3.38	<0.001
	Male	26.89±5.25	35.55±5.08	−8.65±3.76	<0.001
	Female	18.83±3.62	26.69±1.56	−7.86±3.17	<0.001
Roca's equation14	Total	21.38±5.63	26.04±5.37	−4.66±3.33	<0.001
	Male	26.89±5.25	32.36±4.72	−5.46±3.64	<0.001
	Female	18.83±3.62	23.12±2.21	−4.29±3.13	<0.001
ECSC equation15	Total	21.38±5.63	25.67±4.72	−4.28±3.49	<0.001
	Male	26.89±5.25	30.30±4.56	−3.40±3.60	<0.001
	Female	18.83±3.62	23.52±2.93	4.69±3.13	<0.001

Values are presented as mean±SD.