Low IL-2 (<1724 pg/ml)

High 1L-2 (≥1724 pg/ml)

Infectious etiology

9 (41%)

14 (67%)

Bacterial pneumonia

1 (4.5%)

5 (23.8)

Viral pneumonia

7 (32%)

8 (38.1)

Fungal pneumonia

1 (4.6%)

1 (4.8)

Non-infectious etiology

13 (59%)

7 (33%)

Interstitial pneumonitis

2 (9.1%)

0 (0)

Myocardial infarction

1 (4.5%)

1 (4.8%)

Aspiration pneumonia

5 (23%)

4 (19%)

Pancreatitis

1 (4.5%)

1 (4.8%)

Other

4 (19%)

1 (4.8%)