Table 3

Prevalence and distribution of tension-type headache

	Episodic		Chronic		Total		P value
	n	n/N %	n	n/N %	n	n/N %	P value
Total	355	17.2	30	1.5	385	18.6
Sex							0.075
Male	153	15.7	13	1.3	166	17.0
Female	202	18.5	17	1.6	219	20.1
Faculty							0.355
Medicine	291	18.1	25	1.6	316	19.7
Dentistry	33	16.1	2	1.0	35	17.1
Pharmacy	31	12.0	3	1.2	34	13.1
Academic year							0.092
Second	52	12.8	4	1.0	56	13.8
Third	106	21.9	9	1.9	115	23.8
Fourth	69	17.3	8	2.0	77	19.3
Fifth	71	16.0	5	1.1	76	17.1
Sixth	57	17.0	4	1.2	61	18.2
Academic degree							0.951
60–69	10	8.8	0	0.0	10	8.8
70–79	131	18.2	10	1.4	141	19.6
80–89	178	17.0	18	1.7	196	18.7
90–100	36	19.5	2	1.1	38	20.5
Marital status							0.492
Single	334	17.4	29	1.5	363	18.9
Engaged	14	15.4	1	1.1	15	16.5
Married	6	10.9	0	0.0	6	10.9
Widow	0	0.0	0	0.0	-	0.0
Job							0.737
No	313	17.9	25	1.4	338	19.3
Yes	42	13.2	5	1.6	47	14.8
Residence							0.487
Countryside	27	12.7	2	0.9	29	13.7
City	327	17.6	28	1.5	355	19.1
Living with family							0.580
No	83	18.4	5	1.1	88	19.5
Yes	272	16.8	25	1.5	297	18.4
Smoking							0.146
No	332	18.3	26	1.4	358	19.8
Yes	23	9.0	4	1.6	27	10.5
Hookah							0.387
No	298	17.2	26	1.5	324	18.7
Yes	57	17.2	4	1.2	61	18.4
Alcohol							0.763
No	342	17.2	29	1.5	371	18.7
Yes	13	16.3	1	1.3	14	17.5