Oral steroids caused a significant improvement in all nasal symptoms and improved polyp size ( 2.1 + / - 0.1 , P < .05 ) and nasal flow ( 560 + / - 35 cm/s , P < .05 ) compared with nontreated patients ( 2.8 + / - 0.1 and 270 + / - 34 cm/s , respectively ) .
