Table 2. Perecentage of stress symptoms by sex and grade of students, and type of schools in primary school children in Tabriz .

Items	Gender			Grade				School type
	Female	Male	P-value	3 rd	4 th	5 th	P-value	Public	Non-public	P-value
Madness	20.3	31.5	< 0.001	19.4	22.7	33.1	< 0.001	24.9	26.1	0.71
Worry	72.3	65.6	0.04	64	71.2	73	0.04	67.1	75.3	0.02
Crying	29.2	27.1	0.53	29.2	24.4	31	0.22	29.8	24.4	0.14
Early agitation	25.8	30.2	0.18	24	25.6	33.3	0.03	27.2	29.3	0.54
Being afraid	64.6	43.6	< 0.001	53.5	55	57.4	0.63	53.6	59.3	0.11
Bad temper	14.6	18.1	0.18	15.2	14.6	18.2	0.46	16.7	14.5	0.46
No clear thought	24.7	27.4	0.29	23.2	28.3	27.2	0.36	26.6	25.2	0.72
Thinking about death	22.9	27.1	0.16	18.6	23.8	31.6	0.002	25.2	23.7	0.71
Desire to hit someone	15.1	20.7	0.04	11.6	15.4	25.4	< 0.001	18.2	16	0.53
Embarrassment and shame	43.1	38.1	0.15	38.3	41.8	42.7	0.53	39.1	45.7	0.09
Feeling weird	20.4	36.4	< 0.001	26.4	26	29.8	0.53	24.9	34.2	0.009
Feeling sad	52.8	47.1	0.1	44.3	49.2	57.1	0.08	49.4	52.6	0.43
Headache	47.6	44.8	0.44	48	43.8	47.1	0.59	46.2	46.9	0.87
Stomachache	39.1	26.4	< 0.001	30.1	35.6	34.8	0.33	33.7	33	0.93
Sweating	36.4	42.7	0.07	40.4	41.9	35.7	0.29	38.8	40.4	0.69
Fast heart beating	60.5	48.9	0.001	47.5	57.1	61.5	0.003	53.3	61	0.05
Feeling unwell	30.3	28.7	0.64	32.3	30.6	26	0.23	28.6	32.2	0.3
Chills	57.5	42.3	< 0.001	50	48.9	53.4	0.52	49.1	55.5	0.1
Tiredness	39.8	44.4	0.2	39.6	45	41	0.42	41.7	42.1	0.93
Muscle stiffness	19.2	28.9	0.002	23.1	19.4	27.5	0.08	22.4	26.2	0.26
Face blushing and warmness	39.7	35	0.17	34.9	32.4	45.1	0.005	37.5	38	0.93
Weakness	34.8	31	0.26	28.4	34.7	36.3	0.11	31	38.6	0.04
Skin rash	16.2	18.3	0.45	19.8	15.4	16.1	0.33	17	17.5	0.91
Feeling cold	38.2	31	0.03	32.3	36.6	36.2	0.49	35.5	33.8	0.68
Hunger	33.5	46.6	< 0.001	38.9	39.9	38.9	0.96	40.8	35.2	0.15
Nausea and vomiting	18.7	18.5	1	24.9	15.6	15.2	0.004	18.9	17.7	0.76
Total	470	369	-	284	264	291	-	608	231	-