Table 3. Relationship between pathological characteristics and method of detection of breast cancer patients after adjusting for age.

Characteristics		1995–2000			2010			2015
		ORa	95% CI	P	ORa	95% CI	P	ORa	95% CI	P
T stage	T2 vs T1	–b	–b	–b	2.817	1.497–5.300	0.001c	3.820	2.111–6.915	<0.001c
	T3–4 vs T1	2.961	0.303–28.926	0.351	0.023	0.888–16.397	0.072	3.835	0.891–16.498	0.071
N stage	N1 vs N0	0.851	0.119–6.078	0.872	1.832	0.882–3.806	0.105	1.339	0.726–2.469	0.351
	N2–3 vs N0	–b	–b	–b	2.775	1.203–6.400	0.017c	1.308	0.688–2.486	0.413
Histologic grade	II vs I	–b	–b	–b	1.636	0.793–3.375	0.182	0.725	0.217–2.424	0.601
	III vs I	4.544	0.463–44.572	0.194	5.763	1.233–26.945	0.026c	1.251	0.284–5.517	0.767

Notes:

^aOR, odds ratio values. The OR value and P value was calculated by using a multinomial logistic regression model after adjusting for age.

^bThere was no data in the current group.

^cP value indicates statistical significance at the 0.05 level.