Table 1.

Selected characteristics of the hospitalization at the time of the endometriosis or adenomyosis diagnosis, among California Teachers Study participants, from the California Office of Statewide Health Planning and Development patient discharge records, 1995-2003

	Endometriosis diagnosis (n=229)		Adenomyosis diagnosis (n=961)
	n	%	n	%
Age at diagnosis (years)
25-29	1	0.4	3	0.3
30-34	17	7.4	11	1.1
35-39	37	16.2	45	4.7
40-44	59	25.8	129	13.4
45-49	77	33.6	224	23.3
50-54	36	15.7	215	22.4
55-59	2	0.9	98	10.2
60-64	-	-	92	9.6
65-69	-	-	70	7.3
70-74	-	-	39	4.1
75-79	-	-	30	3.1
80-84	-	-	4	0.4
85-89	-	-	1	0.1
Principal hospitalization diagnosis
Uterine Leiomyoma	61	26.6	313	32.5
Adenomyosis	27	11.8	311	32.4
Endometriosis	85	37.1	16	1.7
Genital prolapse or incontinence	2	0.9	99	10.3
Malignant neoplasm	4	1.8	62	6.4
Benign ovarian mass	13	5.7	38	4.0
Pelvic inflammatory disease	4	1.8	22	2.3
Endometrial hyperplasia	2	0.9	19	2.0
Excessive or frequent menstruation	5	2.2	15	1.6
Other	26	11.4	66	6.9
Concurrent diagnosis of uterine fibroids
No	113	49.3	367	38.2
Yes	116	50.7	594	61.8
Concurrent diagnosis of infertility
No	226	98.7	958	99.7
Yes	3	1.3	3	0.3