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Acute lung injury (ALI) and Acute respiratory distress syndrome ...

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Is a PA catheter harmful or helpful <br />

• Prospective cohort study of the association<br />

between PAC (inserted ICU day 1) <strong>and</strong> survival,<br />

LOS, cost.<br />

• “Propensity score” to adjust for covariates.<br />

• PAC recipients matched with patients with same<br />

disease category <strong>and</strong> propensity score who did<br />

not get PAC.<br />

Connors A, JAMA 1996; 276:889-897

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