Table II.

Frequency and mean duration of symptoms in patients with sinusitis and those without sinusitis on day 7 of common cold*

	Frequency of symptoms during days 1-6 (%)			Mean duration (days [SD])
	Sinusitis (n= 38)	No sinusitis (n= 60)	Pvalue	Sinusitisn= 38)	No sinusitis (n= 60)	Pvalue
Watery rhinitis	100.0	98.3	1.00	9.7 (6.0)	8.6 (5.3)	.33
Nasal congestion	100.0	98.3	1.00	11.2 (4.7)	10.2 (5.0)	.34
Purulent rhinitis	94.7	76.7	.02	8.4 (5.6)	7.3 (6.2)	.37
Cough	89.5	88.3	1.00	9.0 (6.9)	8.3 (6.8)	.62
Sore throat	81.6	90.0	.23	3.6 (3.1)	3.7 (3.6)	.85
Headache	76.3	71.7	.61	3.7 (3.5)	3.9 (4.3)	.79
Fever	55.3	55.0	.98	1.3 (1.8)	1.7 (2.4)	.39
*Radiologically established sinusitis was defined as mucosal thickening over 5 mm, total opacity, or air-fluid level.