Breast Density and Breast Cancer Incidence in the Lebanese Population: Results from a Retrospective Multicenter Study

Table 1

Sociodemographic characteristics of the 1,049 Lebanese women.

	No breast cancer		Breast cancer		value	All patients
		%		%			%
Age (years)	51.63 ± 11.70; (range: 18–89)		58.75 ± 11.65; (range: 32–83)		<1	,049; 52.58 ± 11.90; (range: 18–89)
<30	13	1.4%	0	0.0%		13	1.2%
30–39	106	11.4%	4	3.3%		110	10.5%
40–49	325	35.0%	26	21.7%		351	33.5%
50–59	252	27.1%	40	33.3%		292	27.8%
60–69	148	15.9%	26	21.7%		174	16.6%
>70	85	9.1%	24	20.0%		109	10.4%
Menopause					<1	,041
Yes	460	49.9%	93	77.5%		553	53.1%
No	461	50.1%	27	22.5%		488	46.9%
Hormone replacement therapy or hormone contraception					<1	,049
Yes	95	10.2%	0	0%		95	9.1%
No	834	89.8%	120	100%		954	90.9%
Type of mammogram					<1	,049
Screening	886	95.4%	69	57.5%		955	91.0%
Diagnostic	43	4.6%	51	42.5%		94	9.0%
Breastfeeding
Yes	377	43.9%	40	38.5%		546	56.5%
No	482	56.1%	64	61.5%		421	43.5%
Parity	2.26 ± 1.60; (range: 0–9)		2.55 ± 1.66; (range: 0–8)		0.479	2.29 ± 1.60; (range: 0–9)
0	176	20.4%	19	11.9%		195	20.0%
1	70	8.1%	6	3.8%		76	7.8%
2	233	27.0%	22	13.8%		255	26.2%
3	223	25.9%	38	23.9%		261	26.8%
4	102	11.8%	14	8.8%		116	11.9%
5	36	4.2%	55	34.6%		41	4.2%
6	16	1.9%	3	1.9%		19	2.0%
7	4	0.5%	1	0.6%		5	0.5%
8	2	0.2%	1	0.6%		3	0.3%
9	2	0.2%	0	0.0%		2	0.2%

level set at 5%.