What is the clinical evidence from this study?

Study design: Meta-Analysis. Population: Obesity and obstructive sleep apnea (OSA). Intervention: Weight reduction. Primary outcome: Percent change in AHI from baseline (mean AHI decrease of 2.6% per 1% weight reduction).

What question did this study set out to answer?

To quantify the association between percent change in body weight and percent change in apnea-hypopnea index (AHI) across weight reduction interventions.

May 1, 2023SLEEPOpen Access

0572 Weight reduction and the impact on apnea-hypopnea index: a meta-analysis

View Full Paper

Ask AI

Bookmark

Key result

In patients with obesity and OSA, intentional weight reduction was associated with a mean AHI decrease of 2.6% per 1% weight reduction.

Why the study?

While the relationship between weight reduction and apnea-hypopnea index (AHI) improvement has been documented, it has not been adequately quantified.

Does weight reduction improve the apnea-hypopnea index in patients with obesity and obstructive sleep apnea?

Key Points

To quantify the association between percent change in body weight and percent change in apnea-hypopnea index (AHI) across weight reduction interventions.
Literature search identified 13 studies reporting pre- and post-intervention weight and AHI measurements in obesity and OSA: 6 bariatric surgery, 4 diet and exercise, and 3 anti-obesity medication studies (including 2 placebo-controlled randomized clinical trials).
Linear and polynomial meta-regression models along with 95% prediction intervals evaluated the relationship between percentage weight change and percentage AHI change from baseline.
Linear meta-regression indicated a mean AHI reduction of 2.6% for every 1% decrease in body weight across evaluated interventions.
A modeled 20% weight reduction corresponded to an expected mean AHI decrease of 52.8%, with a wide 95% prediction interval spanning 15.8% to 89.8% AHI reduction.

Study Design

Type

Meta-Analysis

Structured PICO

Does weight reduction improve the apnea-hypopnea index in patients with obesity and obstructive sleep apnea?

Population

13 studies evaluating weight interventions (bariatric surgery, diet/exercise, anti-obesity medications) in people living with obesity and OSA.

Intervention

Weight reduction interventions (bariatric surgery, diet and exercise, anti-obesity medications)

Outcome

Percent change in apnea-hypopnea index (AHI) from baselinesurrogate

Main Result

Effect estimate: mean AHI decrease of 2.6% per 1% weight reduction

Weight reduction in patients with obesity and OSA is associated with a dose-dependent improvement in AHI, with approximately 2.6% AHI reduction per 1% weight loss.

Limitations

Sparsity of data
Variability in populations studied
Variability in AHI change following weight reduction
sparsity of data
variability in populations studied
variability in AHI change following weight reduction

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Weight loss produces predictable AHI reductions; extends evidence by quantifying the dose-response for OSA management.

Cite This Study

Malhotra et al. (2023) conducted a meta-analysis in Obesity and obstructive sleep apnea (OSA). Weight reduction was evaluated on Percent change in AHI from baseline (mean AHI decrease of 2.6% per 1% weight reduction). In patients with obesity and OSA, intentional weight reduction was associated with a mean AHI decrease of 2.6% per 1% weight reduction.

synapsesocial.com/papers/6a75cd5d06e84d3015dd87d7 https://doi.org/10.1093/sleep/zsad077.0572

View Full Paper

Ask AI

Bookmark

0572 Weight reduction and the impact on apnea-hypopnea index: a meta-analysis

Key Points

Study Design

Structured PICO

Main Result

Limitations

Discussion

Implication

Cite This Study

0572 Weight reduction and the impact on apnea-hypopnea index: a meta-analysis

Key Points

Study Design

Structured PICO

Main Result

Limitations

Discussion

Implication

Cite This Study

Also Consider

Also Consider