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Table 1 Demographics and baseline clinical characteristics

From: The disease burden of pertussis in adults 50 years old and older in the United States: a retrospective study

  Private practitioner setting Hospital setting Patients in both private practitioner and hospital settings
Patient count % of Total Patient count % of Total Patient count % of Total
N 5,490 100 643 100 385 100
Gender       
 Male 1,779 32.4 238 37.0 145 37.7
 Female 3,711 67.6 405 63.0 240 62.3
Age, years       
 50-64 3,523 64.2 402 62.5 242 62.9
  50-54 1,276 23.2 132 20.5 76 19.7
  55-59 1,175 21.4 132 20.5 75 19.5
  60-64 1,072 19.5 138 21.5 91 23.6
 ≥65 1,967 35.8 241 37.5 143 37.1
  65-69 731 13.3 89 13.8 54 14.0
  70-74 503 9.2 67 10.4 42 10.9
  ≥75 733 13.4 85 13.2 47 12.2
Mean (SD) Age 63 (9) na 63 (9) na 61 (9) na
US Census Region       
 Midwest 1,042 19.0 96 14.9 54 14.0
 Northeast 664 12.1 165 25.7 71 18,4
 South 2,236 40.7 218 33.9 130 33.8
 West 1,547 28.2 164 25.5 130 33.8
Payer Type       
 Commercial 4,137 75.4 467 72.6 281 73.0
 Medicaid 87 1.6 26 4.0 16 4.2
 Medicare 1,264 23.0 141 21.9 86 22.3
Year of Initial Diagnosis       
 2006 570 10.4 63 9.8 21 5.5
 2007 659 12.0 63 9.8 30 7.8
 2008 861 15.7 86 13.4 55 14.3
 2009 1,587 28.9 203 31.6 132 34.3
 2010 (Jan-Oct) 1,813 33.0 228 36.5 147 38.2
Length of Episode of Care, days       
 Mean (SD) 26 (32) na 28 (34) na 34 (37) na
 Median (range) 16 (1–180) na 15 (1–180) na 23 (1–180) na
  1. na = not applicable.
  2. Census region information was not available for the entire study sample. A small percentage of patients had an unknown or other (e.g., TRICARE) insurer. Therefore, patient counts above do not always sum to the total population per setting.