Última actualización 11 de julio de 2026
Key finding
PBG levels decreased significantly (P < 0.05).
This study investigated the effects of Continuous Positive Airway Pressure (CPAP) treatment on blood glucose levels in patients with type 2 diabetes and obstructive sleep apnea, finding significant improvements in various glucose metrics.
Quick read
The essential study design details in one scan.
EvidenceScore™
Moderate
Study type
RCTs
Follow-up
Medium-Term (3–12 mo)
Risk of bias
High Risk
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Plain-language summary
A plain-language read of the study’s main message and where it applies.
Study focus
This study investigated the effects of Continuous Positive Airway Pressure (CPAP) treatment on blood glucose levels in patients with type 2 diabetes and obstructive sleep apnea, finding significant improvements in various glucose metrics.
These findings highlight the potential of CPAP therapy not only for treating obstructive sleep apnea but also for improving glycemic control in patients with type 2 diabetes. This dual benefit could lead to better overall health outcomes and reduced complications associated with diabetes, making it an important consideration for clinicians managing these patients.
Limited sample size may affect generalizability. The study's population was specific to those with both diabetes and sleep apnea. Effectiveness in broader populations remains unclear.
Published in
Publication details and source links for this paper.
Xin Z, Wei Z, Sixu X, Xiaofeng Y, Xiaomei Z. Continuous positive airway pressure treatment may improve blood glucose levels in patients with type 2 diabetes and obstructive sleep apnea. Sleep & Breathing = Schlaf & Atmung. 2022;26(4):1875-1883. doi:10.1007/s11325-021-02556-0
Postprandial blood glucose levels decreased significantly (P < 0.05).
Fasting blood glucose levels decreased significantly (P < 0.05).
HbA1c levels decreased significantly (P < 0.05).
Evidence network
Understand where this research contributes within the broader evidence network.
This study contributes evidence to Continuous Positive Airway Pressure (CPAP) and Blood glucose, HbA1c, Mean Ambulatory Glucose Excursions, and 4 more.
This study contributes evidence to
Primary intervention
Continuous Positive Airway Pressure (CPAP)
Primary outcomes
Evidence topics
Primary intervention
Primary outcomes
Intervention and outcome relationships this study adds to the evidence network.
Editorial context
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Evidence network role
This section describes how the study fits into the current evidence network. It does not determine whether an intervention works on its own.
2
Related topics
7
Evidence pairs
376
Related studies
Evidence topic
Contributes evidence
Evidence topic
Contributes evidence
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Evidencia principal
Tema de evidencia
matched_outcome
Evidencia relacionada
Tema de evidencia
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Core evidence
The primary outcomes reported in this study.
Continuous Positive Airway Pressure (CPAP) → Blood glucose
Continuous Positive Airway Pressure (CPAP) → Blood glucose
Continuous Positive Airway Pressure (CPAP) → HbA1c
Continuous Positive Airway Pressure (CPAP) → HbA1c
Continuous Positive Airway Pressure (CPAP) → Mean Ambulatory Glucose Excursions
Continuous Positive Airway Pressure (CPAP) → Mean Ambulatory Glucose Excursions
Continuous Positive Airway Pressure (CPAP) → Mean Daily Differences in Blood Glucose Levels
Continuous Positive Airway Pressure (CPAP) → Mean Daily Differences in Blood Glucose Levels
Continuous Positive Airway Pressure (CPAP) → Postprandial blood glucose
Continuous Positive Airway Pressure (CPAP) → Postprandial blood glucose
Continuous Positive Airway Pressure (CPAP) → Time above range
Continuous Positive Airway Pressure (CPAP) → Time above range
Continuous Positive Airway Pressure (CPAP) → Time in range
Continuous Positive Airway Pressure (CPAP) → Time in range
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Relationships organized using the Dediabetes Evidence Intelligence™ framework.
This study contributes to evidence on Continuous Positive Airway Pressure (CPAP) and HbA1c, Continuous Positive Airway Pressure (CPAP) and CGM Time in Range.
This study contributes to the evidence on the following intervention-outcome relationships.
Devices & Technology
Devices & Technology
Curated evidence collections and hubs this study is part of.
All studies measuring CGM Time in Range
Measures CGM Time in Range as a key outcome.
All studies on Continuous Positive Airway Pressure (CPAP)
Contributes to Continuous Positive Airway Pressure (CPAP) evidence base.
All studies measuring HbA1c
Measures HbA1c as a key outcome.
Jump to pre-filtered views in Evidence Explorer.
2 results
2 results
2 results
2 results
2 results
Generated from the study's connected evidence using Evidence Intelligence™.
Continuous Positive Airway Pressure (CPAP) may improve HbA1c.
ConsistencyScore™: Results are consistent across studies.
Ranked evidence signals
HbA1c
EvidenceScore™ Moderate | EvidenceScore™ 69.0 | moderate positive | ConsistencyScore™ Consistent | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Continuous Positive Airway Pressure (CPAP) may improve Time in range.
ConsistencyScore™: Results are mixed and should be interpreted cautiously.
Ranked evidence signals
Time in range
EvidenceScore™ Moderate | EvidenceScore™ 69.0 | moderate positive | ConsistencyScore™ Mixed | 1 study
Why this answer: This answer is cautious because the available studies report mixed findings.
Limitations
Continuous Positive Airway Pressure (CPAP) appears to improve Blood glucose.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Blood glucose
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
Continuous Positive Airway Pressure (CPAP) appears to improve Mean Ambulatory Glucose Excursions.
ConsistencyScore™: Consistency cannot yet be determined from the available evidence.
Ranked evidence signals
Mean Ambulatory Glucose Excursions
EvidenceScore™ Emerging | EvidenceScore™ 59.0 | strong positive | ConsistencyScore™ Unclear | 1 study
Why this answer: This answer is based on a single supporting study.
Limitations
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