Table 3.

Triggering/Aggravating Factors

	Age	Males	Females	P
Dairy diets	<20	253(11.17%)	512(20.9%)	<0.001
	20–30	318(14.01%)	1245(24.81%)	<0.001
	>30	17(8.06%)	106(12.17%)	0.115
Spicy food	<20	1959(86.45%)	213587.14%)	0.491
	20–30	1880(82.86%)	4149(82.68%)	0.867
	>30	179(84.83%)	723(83.01%)	0.539
Sweet food	<20	670(29.57%)	1117(45.59%)	<0.001
	20–30	744(32.79%)	2667(53.15%)	<0.001
	>30	63(29.86%)	304(34.9%)	0.169
Seafood	<20	925(40.82%)	1108(45.22%)	0.002
	20–30	1007(44.38%)	2480(49.42%)	<0.001
	>30	76(36.02%)	420(48.22%)	0.002
Constipation	<20	1019(44.97%)	1517(61.92%)	<0.001
	20–30	1253(55.22%)	3563(71%)	<0.001
	>30	122(57.82%)	607(69.69%)	0.001
Genetics	<20	1100(48.54%)	1413(57.67%)	<0.001
	20–30	1206(53.15%)	2960(58.99%)	<0.001
	>30	117(55.45%)	456(52.35%)	0.419
Staying up late	<20	1797(79.3%)	2031(82.9%)	0.002
	20–30	1994(87.88%)	4371(87.11)	0.358
	>30	174(82.46%)	702(80.6%)	0.535
Overtiredness	<20	1501(66.24%)	1788(72.98%)	<0.001
	20–30	1711(75.41%)	3836(76.44%)	0.342
	>30	160(75.83%)	630(72.33%)	0.342
Cosmetics	<20	893(39.41%)	1537(62.73%)	<0.001
	20–30	1042(45.92%)	3581(71.36%)	<0.001
	>30	85(40.28%)	553(63.49%)	<0.001
Electronics	<20	1695(74.8%)	1828(74.61%)	0.893
	20–30	1739(76.64%)	3693(73.6%)	0.006
	>30	137(64.93%)	622(71.41%)	0.066
Changes in living environment	<20	1083(47.79%)	1474(60.16%)	<0.001
	20–30	1429(62.98%)	3514(70.03%)	<0.001
	>30	116(54.98%)	509(58.44%)	0.393
Changes in Season	<20	1587(70.04%)	1655(67.55%)	0.066
	20–30	1658(73.07%)	3367(67.1%)	<0.001
	>30	151(71.56%)	564(64.75%)	0.061
Psychological stress	<20	1160(51.19%)	1498(61.14%)	<0.001
	20–30	1244(54.83%)	3130(62.38%)	<0.001
	>30	92(43.6%)	431(49.48%)	0.125

Note: N (%).