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Table 1 Diagnosis of sleep disordered breathing and obstructive sleep apnea by year, 2004–2009

From: Sleep disordered breathing and cardiovascular risk in older patients initiating dialysis in the United States: a retrospective observational study using medicare data

Year

Incident ESRD (N)

SDB (N)

SDB %

OSA (N)

OSA %

2004

31,741

1822

5.43

2005

31,553

2193

6.50

64

0.19

2006

29,715

2374

7.40

667

2.08

2007

27,401

2651

8.82

1243

4.14

2008

26,501

2864

9.75

1782

6.07

2009

25,753

3307

11.40

2462

8.47

  1. Sleep disordered breathing (SDB) was defined as one inpatient or two separate outpatient Medicare billing claims with ICD-9 codes of “organic sleep apnea” (327.2x), “hypersomnia with sleep apnea NOS” (780.53), “insomnia with sleep apnea NOS” (780.51), or “sleep apnea NOS” (780.57)
  2. Obstructive sleep apnea (OSA) was defined as one inpatient or two separate outpatient Medicare billing claims with ICD-9 codes of “obstructive sleep apnea (adult)” (327.23) only
  3. Until October 2005, “sleep apnea NOS” (780.57) was the sole ICD-9 code for sleep disordered breathing, after which several new codes were added encompassing sleep apnea and related disorders