Life Style Factors Associated with Premenstrual Syndrome among El-Minia University Students, Egypt

Table 4

Relation between PMS and family history, exposure to passive smoking, and physical activity (𝑁=253).

	PMS				Total		𝜒^2; 𝑃 value
	Absent (𝑛=50)		Present (𝑛=203)
	𝑁	%	𝑁	%	𝑁	%
Family history
Yes	4	6.6	57	93.4	61	100	8.8
No	46	24	146	76	192	100	0.003*
Passive smoking
Yes	34	16.5	172	83.5	206	100	7.4
No	16	34	31	66	47	100	0.006*
Physical activity**
Yes	33	50.8	32	49.2	65	100	67.8
No	17	9	171	91	188	100	0.0001*

∗Statistically significant.
**20 min/day thrice weekly.