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+Additional information about the recordings used in the PhysioNet/CinC Challenge 2000
+
+The table below presents additional information (not made available during the challenge)
+about the Apnea-ECG Database records.  The first column of the table contains the record
+names.
+
+For scoring, each record was divided into one-minute non-overlapping segments.  The number
+of such segments is given in the second column of the table below.  Each minute was classified
+as either a "non-apnea minute" (tallied in the third column) or an "apnea minute" (in the
+fourth column).  Minutes containing either apnea or hypopnea were classified as apnea minutes.
+
+The one-minute segments were grouped into 60-minute non-overlapping segments for each record,
+and the number of these groups containing between 5 and 60 apnea minutes is tallied in the
+fifth column, "hours with apnea".  Hours containing 1 to 4 apnea minutes (not considered to
+be clinically significant) were counted as hours without apnea for this purpose.
+
+The apnea index (AI) is the number of apneas observed per hour, and the HI is the number
+of hypopneas observed per hour.  The apnea-hypopnea index (AHI) is defined as the sum of
+AI and HI.
+
+The data contained in the table were kindly provided by Dr. Thomas Penzel.
+
+Record	Length	non-apn	apnea	hours	AI	HI	AHI	Age	Sex	height	weight
+	minutes	minutes	minutes	w/apnea						(cm)	(kg)
+
+a01	490	20	470	9	12.5	57.1	69.6	51	M	175	102		
+a02	529	109	420	9	57.2	12.3	69.5	38	M	180	120		
+a03	520	274	246	9	38.4	0.7	39.1	54	M	168	80		
+a04	493	40	453	9	73.4	4	77.4	52	M	173	121		
+a05	455	179	276	8	35	6	41	58	M	176	78		
+a06	511	305	206	8	16.6	8.1	24.7	63	M	179	104		
+a07	512	190	322	9	46	17	63	44	M	177	105		
+a08	502	313	189	7	32	10	42	51	M	179	88		
+a09	496	115	381	9	23.1	8.6	31.7	52	M	178	82		
+a10	518	418	100	6	11	10	21	58	M	176	78		
+a11	467	245	222	8	11	3	14	58	M	168	103		
+a12	578	44	534	10	70	10.2	80.2	52	M	173	121		
+a13	496	252	244	9	32	10	42	51	M	179	88		
+a14	510	127	383	8	17.3	37.4	54.7	51	M	175	102		
+a15	511	143	368	9	46	6	52	60	M	176	113		
+a16	483	163	320	7	17	24	41	44	M	177	105		
+a17	486	328	158	5	21	12	33	40	M	179	96		
+a18	490	52	438	9	75.5	6.9	82.4	52	M	178	82		
+a19	503	298	205	9	34	0	34	55	M	178	90		
+a20	511	196	315	9	35	6	41	58	M	176	78		
+b01	488	469	19	2	0.12	0.12	0.24	44	F	170	63		
+b02	518	425	93	5	14	5	19	53	M	176	85		
+b03	442	369	73	4	22	2	24	53	M	176	85		
+b04	430	420	10	1	0.7	0	0.7	42	M	180	64		
+b05	434	377	57	3	2	3	5	52	M	180	135		
+c01	485	485	0	0	0	0	0	31	M	184	74		
+c02	503	502	1	0	0	0	0	37	M	180	83		
+c03	455	455	0	0	0	0	0	39	M	184	65		
+c04	483	483	0	0	0	0	0	41	F	180	65		
+c05	467	464	3	0	0	0	0	28	F	169	57		
+c06	469	468	1	0	0	0.25	0.25	28	F	171	65		
+c07	454	450	4	0	0	0	0	30	F	168	56		
+c08	535	535	0	0	0	0	0	42	M	180	64		
+c09	469	467	2	0	0	0	0	37	M	180	83		
+c10	432	431	1	0	0	0	0	27	M	184	72		
+	
+x01	524	149	375	9	46	17	63	44	M	177	105		
+x02	470	261	209	7	27.3	10.4	37.7	46	M	167	69		
+x03	466	454	12	1	0.13	0	0.13	44	F	170	63		
+x04	483	483	0	0	0	0	0	39	M	184	65		
+x05	506	190	316	9	34	0	34	55	M	178	90		
+x06	451	451	0	0	0	0	0	31	M	170	66		
+x07	510	270	240	8	11	10	21	58	M	176	78		
+x08	518	194	324	8	48	0	48	55	M	178	90		
+x09	509	342	167	5	1.8	16.7	18.5	43	M	177	80		
+x10	511	415	96	6	3	7	10	39	M	170	131		
+x11	458	445	13	1	2	3	5	52	M	180	135		
+x12	528	471	57	4	21	12	33	40	M	179	96		
+x13	507	215	292	8	18.5	0.2	18.7	57	M	171	97		
+x14	491	52	439	9	61.2	18.3	79.5	38	M	180	120		
+x15	499	299	200	8	11.3	4.6	15.9	63	M	179	104		
+x16	516	451	65	4	22	2	24	53	M	176	85		
+x17	401	400	1	0	0	0	0	27	F	158	53		
+x18	460	458	2	0	0	0	0	27	M	184	72		
+x19	488	81	407	9	50.1	6.1	56.2	54	M	168	80		
+x20	514	250	264	8	34	9	43	51	M	179	88		
+x21	511	391	120	4	14	5	19	53	M	176	85		
+x22	483	481	2	0	0	0	0	27	F	158	53		
+x23	528	409	119	3	9.9	4.4	14.3	43	M	177	80		
+x24	430	429	1	0	0	0	0	31	M	170	66		
+x25	511	220	291	9	48	0	48	55	M	178	90		
+x26	521	177	344	9	14.4	0.7	15.1	57	M	171	97		
+x27	499	11	488	9	71	4	75	60	M	176	113		
+x28	496	62	434	9	71	4	75	60	M	176	113		
+x29	471	471	0	0	0	0	0	41	F	180	65		
+x30	512	186	326	9	17	24	41	44	M	177	105		
+x31	558	42	516	10	86.8	6.7	93.5	29	F	183	100		
+x32	539	114	425	9	63.3	8.5	71.8	29	F	183	100		
+x33	474	471	3	0	0.13	0	0.13	28	F	169	57		
+x34	476	472	4	0	0.38	0	0.38	30	F	168	56		
+x35	484	484	0	0	0	0	0	31	M	184	74