Table 2.

Significant findings regarding influenza A (H1N1)-positive patients

Most H1N1-positive patients did not have chest X-ray findings upon admission	P < 0.001
Most H1N1-positive patients did not have chest X-ray findings upon discharge	P < 0.001
Respiratory distress upon admission was less common in H1N1 positive than in H1N1-negative patients	P < 0.001
H1N1-positive patients were mainly administered macrolides	P < 0.005
H1N1-positive patients used mainly protection measures	P < 0.001