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Fig. 4 | Respiratory Research

Fig. 4

From: Role of serum periostin in severe obstructive sleep apnea with albuminuria: an observational study

Fig. 4

Positive interaction for serum periostin levels between severe OSA or high 3% ODI and albuminuria. a Severe OSA and presence of albuminuria and b high 3% ODI and presence of albuminuria. Albuminuria was considered present if the urinary albumin–creatinine ratio was ≥20 mg/g in men or ≥ 30 mg/g in women. High 3% ODI was defined as ≥30.2/h, which was equivalent to the top 50% of the participants. OSA, obstructive sleep apnea; AHI, apnea–hypopnea index; 3% ODI, oxygen desaturation (≥3%) index

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