# Context This is a ECG/EKG dataset from the [Data for development and evaluation of ECG-based apnea detectors][1] # Content It contains 70 [Electrocardiography][2] records: - Training set - a01.dat to a20.dat - b01.dat to b05.dat - c01.data to c10.dat - Test set - x01.dat to x25.dat The .dat files 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). For each a.dat file in the training set there is .apn file that is annotation (by human experts) stating for each minute of recording if there was apnea or not # Acknowledgements 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. 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). # Links * https://physionet.org/physiobank/database/apnea-ecg/ * https://physionet.org/faq.shtml #License ODC Public Domain Dedication and Licence (PDDL) https://opendatacommons.org/licenses/pddl/1.0/ According to PhysioNet FAQ https://physionet.org/faq.shtml the redistribution of the data is allowed [1]: https://physionet.org/physiobank/database/apnea-ecg/ [2]: https://en.wikipedia.org/wiki/Electrocardiography