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Dataset

APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled)

ECGSpO₂RespEEGEOGPSG
Get data DOI Cite

APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled). Recorded signals include eeg, eog, ecg, spo2, resp, psg. Licence: NSRR Data Access and Use Agreement.

At a glance
Type
Dataset
Host
Not reported
DOI
10.25822/63pr-a591 (opens in a new tab)
Licence
Not reported
Access
Not reported
Subjects
1,516
Signals
ECGSpO₂RespEEGEOGPSG
Devices
PPG sites
Not reported
Setting
Not reported
Wrist
Not reported
Raw waveforms
Not reported
Tasks
Sleep stagingSleep apnea (OSA) screening
Models
Papers
Updated
Nov 5, 2026
APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled): ChatPPG research summary card

Key numbers

1,516
Subjects
2
Reference labels
SLEEP STAGING, AHI

How it works

How APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled) works: Devices & body sites → Signals recorded → TasksDevices & body sites: Philips Respironics Alice 4 PSG system (Philips Respironics · In lab polysomnography system). Signals recorded: APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled), 1,516 subjects, signals ECG, SpO₂, Respiration, EEG, EOG, PSG. Tasks: Sleep staging; Sleep apnea.Devices & body sitesPhilips Respironics Alice 4 PSG system: Philips Respironics · In lab polysomnography systemPhilips Respironics Alice 4…Philips Respironics · In lab…Signals recordedAPPLES (Apnea Positive…1,516 subjectsECGR / IRSpO₂RespirationEEGEOGPSGTasksSleep stagingSleep stagingSleep apneaSleep apnea
Reference labels
sleep staging, ahi

Devices· 1

Philips Respironics Alice 4 PSG system
Philips Respironics · In lab polysomnography system
PSG

Icons show the form factor: we have no openly licensed or manufacturer-cleared photo of these exact devices yet.

Papers and models using this dataset· 2

Papers

Models

#84 of 158 most-used datasets by published papers and models · #37 of 70 ECG

Cite this dataset

Cite this dataset with the fields recorded here. Check it against the publisher before submitting.

APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled) [Data set]. (n.d.). https://doi.org/10.25822/63pr-a591
@misc{applesnsrrapples,
  title         = {{APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled)}},
  doi           = {10.25822/63pr-a591}
}

Cite the ChatPPG record

Cite the dated snapshot 2026-10 for a fixed, reproducible version. Please also cite the original publications listed above.

APA

ChatPPG. (2026). APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled): dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/apples-nsrr

BibTeX
@misc{chatppg_dataset_apples_nsrr,
  author       = {{ChatPPG}},
  title        = {{APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled): dataset record}},
  year         = {2026},
  month        = nov,
  version      = {2026-10},
  howpublished = {\url{https://chatppg.com/research/datasets/apples-nsrr}},
  note         = {ChatPPG Research Hub, Snapshot 2026-10, https://chatppg.com/research/snapshots/2026-10}
}
CITATION.cff
cff-version: 1.2.0
message: "If you use this resource, please cite it as below."
type: dataset
title: "APPLES (Apnea Positive Pressure Long-term Efficacy Study, NSRR): repeated PSG in a 6-month sham-controlled CPAP RCT (1,516 enrolled): dataset record"
authors:
  - name: "ChatPPG"
url: "https://chatppg.com/research/datasets/apples-nsrr"
repository-artifact: "https://chatppg.com/research/snapshots/2026-10"
version: "2026-10"
date-released: "2026-11-05"

History

  1. Record updated

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