Table 4. Patient-reported rating of side effects.

	Oxygen		Medical Air		Overall
	N	%	N	%	N	%
How drowsy have you felt today?
Not drowsy at all	14	12	14	13	28	13
Mildly drowsy	47	41	39	36	86	38
Moderately drowsy	43	37	41	38	84	37
Extremely drowsy	12	10	14	13	26	12
Total answering question	116	100	108	100	224	100
How much nasal irritation have you experienced today?
None at all	21	18	26	24	47	21
Mild symptoms	62	53	44	41	106	47
Moderate symptoms	31	27	31	29	62	28
Extreme symptoms	2	2	7	6	9	4
Total answering question	116	100	108	100	224	100
Have you experienced any nose bleeds today?
No	89	76	69	64	158	71
Yes but not troublesome	21	18	27	25	48	22
Yes and mildly troublesome	3	3	9	8	12	5
Yes moderately troublesome	2	2	3	3	5	2
yes and extremely troublesome	1	1			1	0
Total answering question	116	100	108	100	224	100
How anxious have you felt today?
Not anxious at all	31	27	17	16	48	21
Mildly anxious	54	47	48	44	102	45
Moderately anxious	27	23	37	34	64	29
Extremely anxious	4	3	6	6	10	5
Total answering question	116	100	108	100	224	100