Table 3.

Characteristics of women of the Jerusalem Perinatal Study cohort (1964–1976) diagnosed with breast cancer by vital status

Characteristic	Total		Vital status*
	(N = 2073)		Deceased (n = 598)		Living (n = 1475)
	N	%	N	%	N	%
Age at 1st birtha
<20	104	5.0	30	5.0	74	5.0
20–25	649	31.3	151	25.3	498	33.8
25–30	661	31.9	162	27.1	499	33.8
30–35	402	19.4	150	25.1	252	17.1
35–40	208	10.0	84	14.0	124	8.4
≥40	49	2.4	21	3.5	28	1.9
Age at diagnosisa
<40	181	8.7	112	18.7	69	4.7
40–45	215	10.4	99	16.6	116	7.9
45–50	317	15.3	103	17.2	214	14.5
50–55	421	20.3	103	17.2	318	21.6
55–60	367	17.7	79	13.2	288	19.5
60–65	289	13.9	56	9.4	233	15.8
65–70	171	8.2	25	4.2	146	9.9
≥70	112	5.4	21	3.5	91	6.2
Year of diagnosis
Prior to 1995	907	43.8	437	73.1	470	31.9
1995 or later	1166	56.2	161	26.9	1005	68.1
Ethnic origin
Israel	297	14.3	102	17.1	195	13.2
West Asia	584	28.2	169	28.3	415	28.1
North Africa	334	16.1	105	17.6	229	15.5
Europe	858	41.4	222	37.1	636	43.1
Birth year
Before 1945	1331	64.2	430	71.9	901	61.1
1945 or later	742	35.8	168	28.1	574	38.9
Parity
1	370	17.8	84	14.0	286	19.4
2–3	1062	51.2	289	48.3	773	52.4
≥4	640	30.9	224	37.5	416	28.2
Unknown	1	0.1	1	0.2	0	0.0
SEP based on woman’s education
0–8 years	489	23.6	160	26.8	329	22.3
9–12 years	702	33.9	196	32.8	506	34.3
>12 years	728	35.1	182	30.4	546	37.0
Unknown	154	7.4	60	10.0	94	6.4
SEP based on husband’s occupation
Low	428	20.6	142	23.7	286	19.4
Middle	806	38.9	247	41.3	559	37.9
High	839	40.5	209	34.9	630	42.7

^a Range includes right boundary

* All characteristics were significantly associated with vital status (p < .05)