Table 3

Best AEX-FV (BTPS, L²/s)

Age group	Gender	Race or ethnicity group	Effort	n	Mean	Quantile 2.5	Quantile 5*	Quantile 7.5	Quantile 10	Quantile 50 (median)	IQR
Child	Male	Hispanic	A	917	3.16	0.73	0.81	0.98	1.03	2.35	1.64
			B	366	2.86	0.44	0.62	0.78	0.98	2.27	1.74
			C	689	2.25	0.06	0.15	0.16	0.25	1.50	1.70
			D	151	2.21	0.04	0.07	0.16	0.26	2.11	1.71
			All	2123	2.76	0.15	0.31	0.48	0.68	2.16	1.84
		White	A	628	2.96	0.64	0.84	1.05	1.19	2.52	1.37
			B	198	2.78	0.57	0.80	0.94	1.10	2.41	1.75
			C	456	2.19	0.06	0.15	0.16	0.20	1.73	2.10
			D	112	3.75	0.03	0.15	0.23	0.65	2.55	2.50
			All	1394	2.77	0.16	0.30	0.61	0.70	2.34	1.81
		Black	A	881	3.52	0.69	1.01	1.11	1.24	2.70	1.73
			B	301	3.23	0.61	0.94	1.06	1.08	2.57	2.06
			C	629	2.46	0.05	0.15	0.23	0.40	1.69	2.14
			D	132	2.49	0.02	0.17	0.23	0.26	2.24	2.42
			All	1943	3.08	0.19	0.44	0.64	0.79	2.38	2.10
		Asian	A	349	2.47	0.79	0.92	0.98	1.08	2.18	1.41
			B	96	2.42	0.07	0.65	0.79	0.85	2.02	1.90
			C	220	1.82	0.08	0.08	0.08	0.10	1.55	1.59
			D	67	2.34	0.07	0.18	0.18	0.18	2.22	1.80
			All	732	2.26	0.08	0.13	0.45	0.79	2.10	1.56
		Other/multiracial	A	135	2.67	0.64	0.93	1.17	1.18	2.52	1.81
			B	55	2.31	0.16	0.54	0.71	0.97	2.19	1.68
			C	122	1.42	0.16	0.18	0.31	0.36	1.30	1.72
			D	28	2.33	0.31	0.31	0.35	0.50	3.20	2.26
			All	340	2.12	0.24	0.47	0.52	0.63	2.17	1.87
	Female	Hispanic	A	750	2.87	0.60	0.69	0.89	0.97	2.32	1.53
			B	330	2.72	0.45	0.56	0.64	0.83	2.22	1.74
			C	658	1.63	0.07	0.08	0.13	0.15	1.18	1.89
			D	126	2.28	0.04	0.09	0.16	0.17	1.85	1.90
			All	1864	2.36	0.12	0.17	0.21	0.33	2.03	1.93
		White	A	645	2.50	0.65	0.77	0.92	0.99	2.20	1.25
			B	196	2.38	0.54	0.66	0.68	0.72	2.14	1.67
			C	414	1.66	0.09	0.10	0.16	0.17	1.23	1.52
			D	88	2.41	0.08	0.15	0.39	0.59	2.24	1.71
			All	1343	2.25	0.13	0.32	0.54	0.65	2.07	1.67
		Black	A	749	2.43	0.61	0.72	0.78	0.86	2.19	1.32
			B	353	2.96	0.48	0.66	0.75	0.79	2.25	1.52
			C	671	1.82	0.06	0.09	0.10	0.17	1.39	1.76
			D	135	2.13	0.02	0.08	0.09	0.20	2.11	1.67
			All	1908	2.30	0.09	0.19	0.30	0.48	2.09	1.58
		Asian	A	327	2.53	0.53	0.65	0.79	0.95	2.41	1.68
			B	115	2.45	0.64	0.75	0.87	1.04	2.16	1.83
			C	164	1.68	0.09	0.09	0.14	0.14	1.29	1.78
			D	33	2.18	0.01	0.01	0.35	0.62	2.40	2.10
			All	639	2.28	0.14	0.24	0.53	0.63	2.18	2.01
		Other/multiracial	A	155	2.61	0.55	0.62	0.85	0.91	2.13	1.32
			B	45	2.37	0.20	0.60	0.69	0.69	2.08	1.85
			C	102	1.52	0.04	0.04	0.07	0.08	1.05	1.63
			D	16	1.47	0.04	0.04	0.05	0.07	1.49	1.75
			All	318	2.17	0.04	0.08	0.14	0.56	1.92	1.58
	All	All	All	12,604	2.53	0.13	0.22	0.42	0.61	2.14	1.85
Adult	Male	Hispanic	A	1464	8.49	2.20	2.56	2.80	2.99	7.46	8.34
			B	491	8.68	2.28	2.60	2.91	3.20	7.76	7.38
			C	436	7.47	0.28	0.78	1.23	1.43	5.74	7.25
			D	275	8.76	0.80	2.19	2.45	2.63	8.17	10.88
			All	2666	8.39	2.01	2.21	2.52	2.70	7.30	8.31
		White	A	2788	11.94	2.08	2.27	2.46	2.69	9.05	12.44
			B	550	11.07	2.12	2.43	2.56	2.95	8.69	10.69
			C	781	13.21	0.13	0.64	1.93	2.03	10.85	17.12
			D	231	12.14	1.50	2.27	2.58	2.80	10.37	9.86
			All	4350	12.06	2.02	2.16	2.38	2.56	9.39	12.82
		Black	A	1988	9.42	2.21	2.43	2.80	2.99	7.69	9.36
			B	620	10.24	2.23	2.43	2.80	3.02	8.33	9.83
			C	833	8.89	0.15	0.24	0.39	1.24	6.20	10.31
			D	306	7.37	0.22	0.24	0.24	0.39	6.23	7.60
			All	3747	9.28	0.39	2.14	2.27	2.65	7.29	9.44
		Asian	A	1072	7.02	2.05	2.17	2.31	2.42	5.47	5.27
			B	291	8.06	2.16	2.29	2.58	3.01	6.12	5.61
			C	327	7.45	1.15	1.39	1.73	1.90	4.45	6.56
			D	165	8.27	2.09	2.18	2.23	2.51	6.81	6.55
			All	1855	7.36	1.90	2.10	2.23	2.35	5.51	5.62
		Other/multiracial	A	270	11.76	1.97	2.10	2.16	2.19	7.07	7.33
			B	52	11.00	2.04	2.30	2.46	2.51	5.39	5.88
			C	80	13.46	1.25	1.98	1.99	2.11	7.08	19.02
			D	17	9.61	1.24	1.24	1.67	2.22	5.14	7.69
			All	419	11.96	1.97	2.10	2.13	2.18	7.07	7.77
	Female	Hispanic	A	1260	5.42	2.09	2.21	2.33	2.40	4.72	3.91
			B	554	5.55	2.11	2.30	2.46	2.57	4.72	3.72
			C	526	4.39	0.06	0.15	0.18	0.58	3.72	3.85
			D	268	4.68	0.24	0.56	1.03	1.89	4.39	3.90
			All	2608	5.17	0.58	1.99	2.13	2.24	4.44	3.86
		White	A	2438	8.35	2.09	2.24	2.42	2.70	6.25	6.63
			B	480	7.63	2.05	2.26	2.38	2.65	5.31	5.65
			C	583	7.16	0.45	0.86	1.16	1.84	4.73	6.63
			D	190	8.34	1.69	2.26	2.41	2.58	5.61	6.54
			All	3691	8.10	2.03	2.14	2.28	2.51	5.80	6.52
		Black	A	1914	6.02	2.14	2.30	2.39	2.52	4.92	4.13
			B	629	5.92	2.11	2.25	2.38	2.48	5.00	4.29
			C	879	5.18	0.14	0.25	0.47	0.92	3.75	4.64
			D	269	5.69	0.06	0.11	0.47	1.09	4.20	5.09
			All	3691	5.79	0.47	1.62	2.12	2.25	4.58	4.36
		Asian	A	905	5.17	2.08	2.14	2.19	2.25	3.74	3.24
			B	309	5.79	2.04	2.14	2.18	2.27	4.13	4.08
			C	348	4.11	0.18	0.33	0.49	0.97	2.85	2.29
			D	120	5.71	0.23	0.97	1.22	2.18	4.08	4.15
			All	1682	5.10	0.97	1.90	2.08	2.16	3.58	3.34
		Other/multiracial	A	205	6.16	1.85	2.09	2.24	2.24	4.16	3.67
			B	25	4.93	1.93	1.99	2.12	2.19	4.65	5.98
			C	96	3.25	0.07	0.07	0.16	0.41	2.13	2.60
			D	22	4.00	0.07	0.13	0.33	0.48	2.82	5.35
			All	348	5.21	0.29	0.43	0.60	1.66	3.25	3.47
	All	All	All	25,057	9.05	1.24	2.08	2.21	2.34	5.82	7.28
All	All	All	All	37,661	7.64	0.25	0.65	0.96	1.18	3.90	5.63

Effort grades: A, exceeds the minimum ATS criteria (three acceptable and two reproducible curves); B, meets ATS criteria (three acceptable and two reproducible curves); C, potentially usable value, but does not meet ATS standards, and estimates are usually based on two curve results with values within 200 mL of each other; D, questionable results, use with caution.
*The fifth percentiles in children and adults.
AEX-FV, area under the expiratory flow-volume; ATS, American Thoracic Society; BTPS, body temperature ambient pressure saturated.