Table 1.
Descriptive characteristics by birth cohort, LIBCSP, 1996-1997
| |
|
Birth cohortsa |
|||||
|---|---|---|---|---|---|---|---|
| |
|
<1925 |
1925-1945 |
1946-1972 |
|||
| |
|
N = 465 |
N = 1,587 |
N = 1,008 |
|||
| |
|
Cases |
Controls |
Cases |
Controls |
Cases |
Controls |
| N (%) | N (%) | N (%) | N (%) | N (%) | N (%) | ||
| Age at reference |
<35 |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
39 (8.4) |
41 (7.5) |
| |
35-44 |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
181 (39.1) |
245 (45.0) |
| |
45-54 |
0 (0.0) |
0 (0.0) |
154 (19.7) |
164 (20.3) |
243 (52.5) |
259 (47.5) |
| |
55-64 |
0 (0.0) |
0 (0.0) |
372 (47.7) |
403 (49.9) |
0 (0.0) |
0 (0.0) |
| |
65-74 |
111 (41.9) |
70 (35.0) |
254 (32.6) |
240 (29.7) |
0 (0.0) |
0 (0.0) |
| |
75-84 |
134 (50.6) |
112 (56.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
| |
85+ |
20 (7.5) |
18 (9.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
| Household Income |
<20,000 |
95 (36.0) |
63 (31.7) |
74 (9.5) |
77 (9.6) |
19 (4.1) |
28 (5.1) |
| |
20,000-34,999 |
112 (42.4) |
82 (41.2) |
195 (25.1) |
193 (23.9) |
36 (7.8) |
62 (11.4) |
| |
35,000-49,999 |
28 (10.6) |
23 (11.6) |
159 (20.5) |
157 (19.5) |
56 (12.1) |
83 (15.2) |
| |
50,000-69,999 |
16 (6.1) |
14 (7.0) |
121 (15.6) |
154 (19.1) |
115 (24.8) |
120 (22.0) |
| |
70,000-89,000 |
7 (2.7) |
7 (3.5) |
91 (11.7) |
105 (13.0) |
92 (19.9) |
96 (17.6) |
| |
>90,000 |
6 (2.3) |
10 (5.0) |
137 (17.6) |
120 (14.9) |
145 (31.3) |
156 (28.6) |
| Body Mass Index at referent |
<18.5 |
<5b (1.5) |
9 (1.1) |
8 (1.0) |
9 (1.1) |
15 (3.2) |
9 (1.7) |
| |
18.5-24.9 |
99 (38.2) |
337 (42.4) |
282 (36.7) |
337 (42.4) |
262 (56.6) |
285 (53.1) |
| |
25.0-29.9 |
97 (37.5) |
248 (31.2) |
270 (35.1) |
248 (31.2) |
116 (25.1) |
144 (26.8) |
| |
>30 |
59 (22.8) |
201 (25.3) |
209 (27.2) |
201 (25.3) |
70 (15.1) |
99 (18.4) |
| Lactation |
Never |
173 (65.3) |
114 (57.0) |
571 (73.2) |
569 (70.5) |
284 (61.3) |
316 (58.0) |
| |
Ever |
92 (34.7) |
86 (43.0) |
209 (26.8) |
238 (29.5) |
179 (38.7) |
229 (42.0) |
| Menopausal Status |
Pre- |
0 (0.0) |
0 (0.0) |
75 (9.8) |
56 (7.2) |
397 (88.0) |
443 (87.5) |
| Post- | 265 (100.0) | 200 (100.0) | 687 (90.2) | 727 (92.8) | 54 (12.0) | 63 (12.5) | |
a Participants born after 1972 (n<5, all controls) were not displayed for confidentiality purposes.
b Cell is defined as <5 for confidentiality purposes.