Figure 1. Algorithm for Prediction Model (Text Version)

The algorithm for the prediction model for community-acquired pneumonia follows:

1. Patients with community-acquired pneumonia
2. Is the patient over 50 years of age? No: continue to next step. Yes: Assign patient to risk class II-V based on prediction model scoring system.
3. Does the patient have a history of any of the following comorbid conditions? No: continue to next step. Yes: Assign patient to risk class II-V based on prediction model scoring system.
4. Does the patient have any of the following abnormalities on physical examination? No: Assign patient to risk class I. Yes: Assign patient to risk class II-V based on prediction model scoring system.

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