Table 2.

Perceived triggers for the assessed headache attack.

Pain triggers	Headache without NSP	Headache with NSP	p-value
Stress	125 (41%)	198 (37%)	0.2378
(Physical) tension/poor posture	49 (16%)	377 (70%)	<0.0001
Nutrition (e.g., dehydration)	31 (10%)	46 (9%)	0.4559
Weather sensitivity	88 (29%)	82 (15%)	<0.0001
Common cold / other diseases	31 (10%)	28 (5%)	0.0076
Hormonal disbalance (e.g., due to menstruation)	26 (9%)	39 (7%)	0.5037
Other	18 (6%)	15 (3%)	0.0275
Do not know	28 (9%)	16 (3%)	0.0002

Multiple mentions were allowed.