Table 4.

Distribution of the study subjects by age and clinical presentations.

Variable	Category	No	Mild	Moderate	Severe	Total
Nasal congestions
	<20 years	2	8	5	12	27
	21–25	12	1	14	16	43
	26–30	5	3	3	17	28
	31–35	2	3	4	10	19
	36+	1	2	4	7	14
	Total	22	17	30	62	131
Nasal blockages
	<20 years	2	0	9	16	27
	21–25	3	8	8	24	43
	26–30	1	3	4	2	28
	31–35	1	2	3	13	19
	36+	1	2	2	9	14
Breathing troubles
	<20 years	5	3	6	13	27
	21–25	6	7	6	24	43
	26–30	4	2	4	18	28
	31–35	2	2	6	9	19
	36+	0	3	5	6	14
Sleeping troubles
	<20 years	5	3	4	15	27
	21–25	8	9	7	19	43
	26–30	5	2	6	15	28
	31–35	3	4	3	9	19
	36+	0	2	0	12	14
Exercise problems
	<20 years	12	6	5	4	27
	21–25	12	6	12	13	43
	26–30	6	9	6	7	28
	31–35	6	4	4	5	19
	36+	2	6	1	5	14