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Table 5 Sensitivity and specificity of the Oximetry Score in differentiating exacerbation onset from symptom days (day-to-day symptom variation) in COPD.

From: Domiciliary pulse-oximetry at exacerbation of chronic obstructive pulmonary disease: prospective pilot study

Oximetry Score*

Sensitivity

Specificity

+0.5

100%

54%

+1.0

71%

74%

+1.5

29%

89%

+2.0

14%

94%

  1. *A +1SD change in score could represent, for example, a fall in oxygen saturation of 1% and a rise in heart rate of 5 min-1, or no change in oxygen saturation from baseline and a rise in heart rate of 10 min-1. See text for further details.
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BMC Pulmonary Medicine

ISSN: 1471-2466

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