Table 2. Time Trends in Incidence of Biliary Tract Cancers in Golestan, Iran (2004‒2016), by Gender .

	Time Period	AAPC	95% CI of AAPC	P Value*
Male	2004‒2016	7.18	0.06 to 14.81	0.048
Female	2004‒2016	-0.82	-5.94 to 4.57	0.740

AAPC, average annual percent change; CI, confidence interval.

*Level of significancy: P value < 0.5