![]() ![]() Pulse oximetry represents a useful diagnostic adjunct for assessing the severity of obstructive pulmonary disease. These associations were confirmed by multivariable logistic regression, where FEV 1% predicted < 50 was the strongest predictor of SpO 2 ≤ 95% (odds ratio 6.8, 95% confidence interval 2.8–16.4).Ĭonclusion. In the COPD group, haemoglobin above normal was associated with SpO 2 ≤ 95%. In both asthma and COPD patients, SpO 2 ≤ 95% was significantly associated with reduced lung function (spirometry), a diagnosis of coronary heart disease and older age (≥ 65 years). Main outcome measures: Decreased SpO 2 values (≤ 95% and ≤ 92%). Patients diagnosed with COPD (including those with combined COPD/asthma) and those diagnosed with asthma only were analysed separately. ![]() The patients were examined during a stable phase of their disease. ![]() Objective: To explore the associations between decreased pulse oximetry values (SpO 2) and clinical, laboratory, and demographic variables in general practice patients diagnosed with asthma or chronic obstructive pulmonary disease (COPD), including those with both COPD and asthma in combination.ĭesign/setting: A cross-sectional study in seven Norwegian general practices of patients aged 40 years or over who were diagnosed by their general practitioner (GP) with asthma and/or COPD. ![]()
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