Table 2.

Clinical and pathological characteristics of female breast cancer patients in Florida (1996–2009)

	All female patients		Laterality of procedure done
			Unilateral			Bilateral
	n	Column %	n	Column %	Row %	n	Column %	Row %
All	21,608	100.0	20,771	100.0	96.1	837	100.0	3.9
Elixhauser co-morbidity count
None	454	2.1	417	2.0	91.9	37	4.4	8.1
1–2	3,719	17.2	3,479	16.7	93.5	240	28.7	6.5
3–4	5,027	23.3	4,807	23.1	95.6	220	26.3	4.4
>4	12,408	57.4	12,068	58.1	97.3	340	40.6	2.7
Surveillance, Epidemiology, and End Results stage
Unknown/unstaged	1,072	5.0	1,036	5.0	96.6	36	4.3	3.4
Localized	15,380	71.2	14,750	71.0	95.9	630	75.3	4.1
Regional, direct extension ± lymph nodes	1,068	4.9	1,039	5.0	97.3	29	3.5	2.7
Regional, lymph nodes only	3,675	17.0	3,544	17.1	96.4	131	15.7	3.6
Distant	413	1.9	402	1.9	97.3	11	1.3	2.7
Histological grade
Unknown/not stated	3,849	17.8	3,710	17.9	96.4	139	16.6	3.6
Well-differentiated	3,836	17.8	3,677	17.7	95.9	159	19.0	4.1
Moderately differentiated	8,121	37.6	7,805	37.6	96.1	316	37.8	3.9
Poorly differentiated	5,507	25.5	5,294	25.5	96.1	213	25.4	3.9
Undifferentiated	295	1.4	285	1.4	96.6	10	1.2	3.4
Histological type
Ductal carcinoma	15,836	73.3	15,223	73.3	96.1	613	73.2	3.9
Lobular carcinoma	3,612	16.7	3,443	16.6	95.3	169	20.2	4.7
Other	2,160	10.0	2,105	10.1	97.5	55	6.6	2.5
Adjuvant chemotherapy
Unknown	1,002	4.6	969	4.7	96.7	33	3.9	3.3
No	17,988	83.2	17,382	83.7	96.6	606	72.4	3.4
Yes	2,618	12.1	2,420	11.7	92.4	198	23.7	7.6
Adjuvant radiation therapy
Unknown	621	2.9	605	2.9	97.4	16	1.9	2.6
No	16,670	77.1	15,912	76.6	95.5	758	90.6	4.5
Yes	4,317	20.0	4,254	20.5	98.5	63	7.5	1.5
Death within 30 days of surgery
No	21,482	99.4	20,647	99.4	96.1	835	99.8	3.9
Yes	126	0.6	124	0.6	98.4	2	0.2	1.6
Survival status
Dead	4,871	22.5	4,803	23.1	98.6	68	8.1	1.4
Alive	16,737	77.5	15,968	76.9	95.4	769	91.9	4.6.