Data for development and evaluation of ECG-based apnea detectors
This database is described in
T Penzel, GB Moody, RG Mark, AL Goldberger, JH Peter.
The Apnea-ECG Database.
Computers in Cardiology 2000;27:255-258.
Please cite this publication when referencing this material, and also
include the standard citation for PhysioNet:
Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG,
Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and
PhysioNet: Components of a New Research Resource for Complex Physiologic
Signals.
Circulation 101(23):e215-e220 [Circulation Electronic Pages;
http://circ.ahajournals.org/content/101/23/e215.full];
2000 (June 13).
The data in this directory have been contributed by Dr. Thomas Penzel of
Phillips-University, Marburg, Germany. See the
announcement of CinC Challenge
2000 for details on the competition for which these data have been assembled
here.
If you wish to download all of the files in this directory without selecting
each one individually, try using a utility for batch HTTP transfers such as
wget, available here in source form for all versions of UNIX and
as a precompiled binary for MS-Windows. Most Linux distributions include
wget. Once you have installed wget, retrieve these files
using
wget -r -np http://www.physionet.org/physiobank/database/apnea-ecg/
(or substitute the name of a nearby PhysioNet
mirror for www.physionet.org above). The files in this directory
occupy 583 megabytes.
The data consist of 70 records, divided into a learning set of 35
records (a01 through a20, b01 through b05,
and c01 through c10), and a test set of 35 records
(x01 through x35), all of which may be downloaded from this
page. Recordings vary in length from slightly less than 7 hours to nearly
10 hours each. Each recording includes a continuous digitized ECG signal,
a set of apnea annotations (derived by human experts on the basis of
simultaneously recorded respiration and related signals), and a set of
machine-generated QRS annotations (in which all beats regardless of type have
been labeled normal). In addition, eight recordings (a01 through
a04, b01, and c01 through c03) are
accompanied by four additional signals (Resp C and Resp A,
chest and abdominal respiratory effort signals obtained using inductance
plethysmography; Resp N, oronasal airflow measured using nasal
thermistors; and SpO2, oxygen saturation).
Several files are associated with each recording. The files with names of the
form rnn.dat contain the digitized ECGs (16 bits per sample,
least significant byte first in each pair, 100 samples per second, nominally
200 A/D units per millivolt). The .hea files are (text) header files
that specify the names and formats of the associated signal files; these header
files are needed by the software available from this site. The .apn
files are (binary) annotation files, containing an annotation for each minute
of each recording indicating the presence or absence of apnea at that time;
these are available for the 35 learning set recordings only. The qrs
files are machine-generated (binary) annotation files, made using sqrs125, and provided for the
convenience of those who do not wish to use their own QRS detectors. Please
note that the .qrs files are unaudited and contain errors. You may wish to correct these errors (if
you do, please send your corrections
to us). Otherwise, you may use these annotations in uncorrected form if
you wish to investigate methods of apnea detection that are robust with respect
to small numbers of QRS detection errors, or you may ignore these annotations
entirely and work directly from the signal files. Further information about
the annotation files, including interpretations of the annotation types (codes)
and details of how the .qrs files were created, are available here.
In April 2013, Chiu-wen Wu reported that training set control
records c05 and c06 come from the same original recording
(c05 begins 80 seconds later than c06). The slightly
different descriptions of these records
in additional-information.txt suggest
that c06 may have been a corrected version of c05.
The eight records that include respiration signals have several additional
files each. The four respiration-related signals are combined in a file named
rnnr.dat, which has its own header file
(rnnr.hea), as well as a header file named
rnner.hea, which (when used with software such as WAVE or
WVIEW) allows you to examine the ECG and the respiration signals
side-by-side.
Finally, if you are running Linux and have installed WAVE, you may click on the
.xws file associated with each record to view that record without
downloading it first. WAVE and the related
WFDB software package may be downloaded from this site.
Name Last modified Size Description
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DOI 21-Sep-2015 19:00 19
MD5SUMS 29-Apr-2013 00:05 16K
SHA1SUMS 29-Apr-2013 00:05 19K
SHA256SUMS 29-Apr-2013 00:05 27K
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additional-information.txt 24-Mar-2009 17:07 4.2K
annotations.shtml 13-Oct-2016 20:30 9.7K
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challenge/ 13-Oct-2016 20:27 -
local.css 28-Oct-2015 22:53 3.1K
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a01.dat 03-Feb-2000 04:05 5.6M ECG signal
a02.dat 03-Feb-2000 04:05 6.1M ECG signal
a03.dat 03-Feb-2000 04:05 6.0M ECG signal
a04.dat 03-Feb-2000 04:05 5.7M ECG signal
a05.dat 03-Feb-2000 04:05 5.2M ECG signal
a06.dat 03-Feb-2000 04:05 5.8M ECG signal
a07.dat 03-Feb-2000 04:05 5.8M ECG signal
a08.dat 03-Feb-2000 04:05 5.7M ECG signal
a09.dat 03-Feb-2000 04:05 5.7M ECG signal
a10.dat 03-Feb-2000 04:05 5.9M ECG signal
a11.dat 03-Feb-2000 04:05 5.4M ECG signal
a12.dat 03-Feb-2000 04:05 6.6M ECG signal
a13.dat 03-Feb-2000 04:05 5.7M ECG signal
a14.dat 03-Feb-2000 04:05 6.0M ECG signal
a15.dat 03-Feb-2000 04:05 5.8M ECG signal
a16.dat 03-Feb-2000 04:05 5.5M ECG signal
a17.dat 03-Feb-2000 04:05 5.5M ECG signal
a18.dat 03-Feb-2000 04:05 5.6M ECG signal
a19.dat 03-Feb-2000 04:05 5.7M ECG signal
a20.dat 03-Feb-2000 04:05 5.8M ECG signal
b01.dat 03-Feb-2000 04:05 5.6M ECG signal
b02.dat 03-Feb-2000 04:05 6.0M ECG signal
b03.dat 03-Feb-2000 04:05 5.0M ECG signal
b04.dat 03-Feb-2000 04:05 4.9M ECG signal
b05.dat 03-Feb-2000 04:05 4.9M ECG signal
c01.dat 03-Feb-2000 04:05 5.5M ECG signal
c02.dat 03-Feb-2000 04:05 5.7M ECG signal
c03.dat 03-Feb-2000 04:05 5.2M ECG signal
c04.dat 03-Feb-2000 04:05 5.5M ECG signal
c05.dat 03-Feb-2000 04:05 5.3M ECG signal
c06.dat 03-Feb-2000 04:05 5.3M ECG signal
c07.dat 03-Feb-2000 04:05 4.9M ECG signal
c08.dat 03-Feb-2000 04:05 5.9M ECG signal
c09.dat 03-Feb-2000 04:05 5.3M ECG signal
c10.dat 03-Feb-2000 04:05 4.9M ECG signal
x01.dat 03-Feb-2000 04:05 6.0M ECG signal
x02.dat 03-Feb-2000 04:05 5.4M ECG signal
x03.dat 03-Feb-2000 04:05 5.3M ECG signal
x04.dat 03-Feb-2000 04:05 5.5M ECG signal
x05.dat 03-Feb-2000 04:05 5.8M ECG signal
x06.dat 03-Feb-2000 04:05 5.1M ECG signal
x07.dat 03-Feb-2000 04:05 5.8M ECG signal
x08.dat 03-Feb-2000 04:05 5.9M ECG signal
x09.dat 03-Feb-2000 04:05 5.8M ECG signal
x10.dat 03-Feb-2000 04:05 5.8M ECG signal
x11.dat 03-Feb-2000 04:05 5.2M ECG signal
x12.dat 03-Feb-2000 04:05 6.1M ECG signal
x13.dat 03-Feb-2000 04:05 5.8M ECG signal
x14.dat 03-Feb-2000 04:05 5.7M ECG signal
x15.dat 03-Feb-2000 04:05 6.0M ECG signal
x16.dat 03-Feb-2000 04:05 5.9M ECG signal
x17.dat 03-Feb-2000 04:05 4.6M ECG signal
x18.dat 03-Feb-2000 04:05 5.3M ECG signal
x19.dat 03-Feb-2000 04:05 5.6M ECG signal
x20.dat 03-Feb-2000 04:05 5.9M ECG signal
x21.dat 03-Feb-2000 04:05 5.8M ECG signal
x22.dat 03-Feb-2000 04:05 5.5M ECG signal
x23.dat 03-Feb-2000 04:05 6.1M ECG signal
x24.dat 03-Feb-2000 04:05 4.9M ECG signal
x25.dat 03-Feb-2000 04:05 5.8M ECG signal
x26.dat 03-Feb-2000 04:05 5.9M ECG signal
x27.dat 03-Feb-2000 04:05 5.7M ECG signal
x28.dat 03-Feb-2000 04:05 5.7M ECG signal
x29.dat 03-Feb-2000 04:05 5.4M ECG signal
x30.dat 03-Feb-2000 04:05 6.1M ECG signal
x31.dat 03-Feb-2000 04:05 6.4M ECG signal
x32.dat 03-Feb-2000 04:05 6.2M ECG signal
x33.dat 03-Feb-2000 04:05 5.4M ECG signal
x34.dat 03-Feb-2000 04:05 5.4M ECG signal
x35.dat 03-Feb-2000 04:05 5.5M ECG signal
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a01.xws 03-Feb-2000 04:05 88 WAVEScript
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a01.apn 03-Feb-2000 04:05 3.8K apnea annotations
a01er.apn 03-Feb-2000 04:05 3.8K apnea annotations
a01r.apn 03-Feb-2000 04:05 3.8K apnea annotations
a02.apn 03-Feb-2000 04:05 4.1K apnea annotations
a02er.apn 03-Feb-2000 04:05 4.1K apnea annotations
a02r.apn 03-Feb-2000 04:05 4.1K apnea annotations
a03.apn 03-Feb-2000 04:05 4.1K apnea annotations
a03er.apn 03-Feb-2000 04:05 4.1K apnea annotations
a03r.apn 03-Feb-2000 04:05 4.1K apnea annotations
a04.apn 03-Feb-2000 04:05 3.8K apnea annotations
a04er.apn 03-Feb-2000 04:05 3.8K apnea annotations
a04r.apn 03-Feb-2000 04:05 3.8K apnea annotations
a05.apn 03-Feb-2000 04:05 3.5K apnea annotations
a06.apn 03-Feb-2000 04:05 4.0K apnea annotations
a07.apn 03-Feb-2000 04:05 4.0K apnea annotations
a08.apn 03-Feb-2000 04:05 3.9K apnea annotations
a09.apn 03-Feb-2000 04:05 3.9K apnea annotations
a10.apn 03-Feb-2000 04:05 4.0K apnea annotations
a11.apn 03-Feb-2000 04:05 3.6K apnea annotations
a12.apn 03-Feb-2000 04:05 4.5K apnea annotations
a13.apn 03-Feb-2000 04:05 3.9K apnea annotations
a14.apn 03-Feb-2000 04:05 4.0K apnea annotations
a15.apn 03-Feb-2000 04:05 4.0K apnea annotations
a16.apn 03-Feb-2000 04:05 3.8K apnea annotations
a17.apn 03-Feb-2000 04:05 3.8K apnea annotations
a18.apn 03-Feb-2000 04:05 3.8K apnea annotations
a19.apn 03-Feb-2000 04:05 3.9K apnea annotations
a20.apn 03-Feb-2000 04:05 4.0K apnea annotations
b01.apn 03-Feb-2000 04:05 3.8K apnea annotations
b01er.apn 03-Feb-2000 04:05 3.8K apnea annotations
b01r.apn 03-Feb-2000 04:05 3.8K apnea annotations
b02.apn 03-Feb-2000 04:05 4.0K apnea annotations
b03.apn 03-Feb-2000 04:05 3.4K apnea annotations
b04.apn 03-Feb-2000 04:05 3.3K apnea annotations
b05.apn 03-Feb-2000 04:05 3.4K apnea annotations
c01.apn 03-Feb-2000 04:05 3.8K apnea annotations
c01er.apn 03-Feb-2000 04:05 3.8K apnea annotations
c01r.apn 03-Feb-2000 04:05 3.8K apnea annotations
c02.apn 03-Feb-2000 04:05 3.9K apnea annotations
c02er.apn 03-Feb-2000 04:05 3.9K apnea annotations
c02r.apn 03-Feb-2000 04:05 3.9K apnea annotations
c03.apn 03-Feb-2000 04:05 3.5K apnea annotations
c03er.apn 03-Feb-2000 04:05 3.5K apnea annotations
c03r.apn 03-Feb-2000 04:05 3.5K apnea annotations
c04.apn 03-Feb-2000 04:05 3.8K apnea annotations
c05.apn 03-Feb-2000 04:05 3.6K apnea annotations
c06.apn 03-Feb-2000 04:05 3.7K apnea annotations
c07.apn 03-Feb-2000 04:05 3.3K apnea annotations
c08.apn 03-Feb-2000 04:05 4.0K apnea annotations
c09.apn 03-Feb-2000 04:05 3.7K apnea annotations
c10.apn 03-Feb-2000 04:05 3.4K apnea annotations
a01.qrs 03-Feb-2000 04:05 58K beat annotations
a01er.qrs 03-Feb-2000 04:05 58K beat annotations
a02.qrs 03-Feb-2000 04:05 69K beat annotations
a02er.qrs 03-Feb-2000 04:05 69K beat annotations
a03.qrs 03-Feb-2000 04:05 67K beat annotations
a03er.qrs 03-Feb-2000 04:05 67K beat annotations
a04.qrs 03-Feb-2000 04:05 61K beat annotations
a04er.qrs 03-Feb-2000 04:05 61K beat annotations
a05.qrs 03-Feb-2000 04:05 56K beat annotations
a06.qrs 03-Feb-2000 04:05 53K beat annotations
a07.qrs 03-Feb-2000 04:05 73K beat annotations
a08.qrs 03-Feb-2000 04:05 80K beat annotations
a09.qrs 03-Feb-2000 04:05 62K beat annotations
a10.qrs 03-Feb-2000 04:05 63K beat annotations
a11.qrs 03-Feb-2000 04:05 65K beat annotations
a12.qrs 03-Feb-2000 04:05 66K beat annotations
a13.qrs 03-Feb-2000 04:05 78K beat annotations
a14.qrs 03-Feb-2000 04:05 57K beat annotations
a15.qrs 03-Feb-2000 04:05 66K beat annotations
a16.qrs 03-Feb-2000 04:05 68K beat annotations
a17.qrs 03-Feb-2000 04:05 71K beat annotations
a18.qrs 03-Feb-2000 04:05 59K beat annotations
a19.qrs 03-Feb-2000 04:05 76K beat annotations
a20.qrs 03-Feb-2000 04:05 67K beat annotations
b01.qrs 03-Feb-2000 04:05 69K beat annotations
b01er.qrs 03-Feb-2000 04:05 69K beat annotations
b02.qrs 03-Feb-2000 04:05 69K beat annotations
b03.qrs 03-Feb-2000 04:05 57K beat annotations
b04.qrs 03-Feb-2000 04:05 49K beat annotations
b05.qrs 03-Feb-2000 04:05 57K beat annotations
c01.qrs 03-Feb-2000 04:05 54K beat annotations
c01er.qrs 03-Feb-2000 04:05 54K beat annotations
c02.qrs 03-Feb-2000 04:05 63K beat annotations
c02er.qrs 03-Feb-2000 04:05 63K beat annotations
c03.qrs 03-Feb-2000 04:05 46K beat annotations
c03er.qrs 03-Feb-2000 04:05 46K beat annotations
c04.qrs 03-Feb-2000 04:05 56K beat annotations
c05.qrs 03-Feb-2000 04:05 55K beat annotations
c06.qrs 03-Feb-2000 04:05 55K beat annotations
c07.qrs 03-Feb-2000 04:05 62K beat annotations
c08.qrs 03-Feb-2000 04:05 61K beat annotations
c09.qrs 03-Feb-2000 04:05 61K beat annotations
c10.qrs 03-Feb-2000 04:05 47K beat annotations
x01.qrs 03-Feb-2000 04:05 71K beat annotations
x02.qrs 03-Feb-2000 04:05 78K beat annotations
x03.qrs 03-Feb-2000 04:05 65K beat annotations
x04.qrs 03-Feb-2000 04:05 50K beat annotations
x05.qrs 03-Feb-2000 04:05 69K beat annotations
x06.qrs 03-Feb-2000 04:05 43K beat annotations
x07.qrs 03-Feb-2000 04:05 63K beat annotations
x08.qrs 03-Feb-2000 04:05 70K beat annotations
x09.qrs 03-Feb-2000 04:05 74K beat annotations
x10.qrs 03-Feb-2000 04:05 81K beat annotations
x11.qrs 03-Feb-2000 04:05 59K beat annotations
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x13.qrs 03-Feb-2000 04:05 70K beat annotations
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x15.qrs 03-Feb-2000 04:05 59K beat annotations
x16.qrs 03-Feb-2000 04:05 68K beat annotations
x17.qrs 03-Feb-2000 04:05 38K beat annotations
x18.qrs 03-Feb-2000 04:05 49K beat annotations
x19.qrs 03-Feb-2000 04:05 61K beat annotations
x20.qrs 03-Feb-2000 04:05 76K beat annotations
x21.qrs 03-Feb-2000 04:05 64K beat annotations
x22.qrs 03-Feb-2000 04:05 57K beat annotations
x23.qrs 03-Feb-2000 04:05 75K beat annotations
x24.qrs 03-Feb-2000 04:05 43K beat annotations
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x26.qrs 03-Feb-2000 04:05 63K beat annotations
x27.qrs 03-Feb-2000 04:05 78K beat annotations
x28.qrs 03-Feb-2000 04:05 74K beat annotations
x29.qrs 03-Feb-2000 04:05 60K beat annotations
x30.qrs 03-Feb-2000 04:05 71K beat annotations
x31.qrs 03-Feb-2000 04:05 67K beat annotations
x32.qrs 03-Feb-2000 04:05 67K beat annotations
x33.qrs 03-Feb-2000 04:05 67K beat annotations
x34.qrs 03-Feb-2000 04:05 67K beat annotations
x35.qrs 03-Feb-2000 04:05 57K beat annotations
a01.hea 03-Feb-2000 04:05 55 header file
a01er.hea 03-Feb-2000 04:05 230 header file
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x08.hea 03-Feb-2000 04:05 57 header file
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x13.hea 03-Feb-2000 04:05 56 header file
x14.hea 03-Feb-2000 04:05 54 header file
x15.hea 03-Feb-2000 04:05 55 header file
x16.hea 03-Feb-2000 04:05 55 header file
x17.hea 03-Feb-2000 04:05 55 header file
x18.hea 03-Feb-2000 04:05 55 header file
x19.hea 03-Feb-2000 04:05 55 header file
x20.hea 03-Feb-2000 04:05 55 header file
x21.hea 03-Feb-2000 04:05 55 header file
x22.hea 03-Feb-2000 04:05 55 header file
x23.hea 03-Feb-2000 04:05 54 header file
x24.hea 03-Feb-2000 04:05 56 header file
x25.hea 03-Feb-2000 04:05 56 header file
x26.hea 03-Feb-2000 04:05 57 header file
x27.hea 03-Feb-2000 04:05 55 header file
x28.hea 03-Feb-2000 04:05 54 header file
x29.hea 03-Feb-2000 04:05 55 header file
x30.hea 03-Feb-2000 04:05 55 header file
x31.hea 03-Feb-2000 04:05 55 header file
x32.hea 03-Feb-2000 04:05 57 header file
x33.hea 03-Feb-2000 04:05 53 header file
x34.hea 03-Feb-2000 04:05 55 header file
x35.hea 03-Feb-2000 04:05 55 header file
![[ ]](/icons/index.gif)
ANNOTATORS 14-Oct-2000 04:17 87 list of annotators
RECORDS 29-Mar-2000 17:01 368 list of record names
list 03-Feb-2000 04:05 280 list of records
a01r.dat 03-Feb-2000 04:05 23M respiration signals
a02r.dat 03-Feb-2000 04:05 24M respiration signals
a03r.dat 03-Feb-2000 04:05 24M respiration signals
a04r.dat 03-Feb-2000 04:05 23M respiration signals
b01r.dat 03-Feb-2000 04:05 22M respiration signals
c01r.dat 03-Feb-2000 04:05 22M respiration signals
c02r.dat 03-Feb-2000 04:05 23M respiration signals
c03r.dat 03-Feb-2000 04:05 21M respiration signals
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Updated
Friday, 28-Oct-2016 22:58:42 CEST
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