| |
Cases (n = 412)
|
Controls (n = 424)
|
|---|
|
WHI Arm (N, %)
|
|
OS
|
213 (52%)
|
218 (52%)
|
|
CT: HT and DM
|
24 (6%)
|
26 (6%)
|
|
CT: HT only
|
55 (13%)
|
56 (13%)
|
|
CT: DM only
|
120 (29%)
|
124 (29%)
|
|
Age (N, %)
|
|
< 50–59
|
97 (24%)
|
100 (24%)
|
|
60–69
|
194 (47%)
|
203 (48%)
|
|
70–79+
|
121 (29%)
|
121 (28%)
|
|
Year of Enrollment (N, %)
|
|
1994 - 1995
|
105 (25%)
|
109 (26%)
|
|
1996
|
125 (30%)
|
127 (30%)
|
|
1997
|
114 (28%)
|
116 (27%)
|
|
1998
|
68 (17%)
|
72 (17%)
|
|
DNA Extraction Method (N, %)
|
|
5-prime
|
397 (96%)
|
408 (96%)
|
|
Phenol
|
15 (4%)
|
16 (4%)
|
|
Race/Ethnicity (N, %)
|
|
Asian/Pacific Islander
|
4 (1%)
|
12 (3%)
|
|
Black/African American
|
24 (6%)
|
40 (9%)
|
|
Hispanic
|
7 (2%)
|
16 (4%)
|
|
Non-Hispanic White
|
375 (91%)
|
349 (82%)
|
|
Other
|
2 (< 1%)
|
7 (2%)
|
|
Smoking (N, %)
|
|
Never Smoked
|
155 (38%)
|
234 (55%)
|
|
Past Smoker
|
204 (49%)
|
172 (41%)
|
|
Current Smoker
|
53 (13%)
|
18 (4%)
|
|
Pack-Years (N, %)
|
|
Never Smoker
|
155 (38%)
|
234 (55%)
|
|
> 0 - < 30
|
145 (35%)
|
137 (32%)
|
|
≥ 30
|
112 (27%)
|
53 (13%)
|
- Abbreviations: OS Observational study; CT Clinical trials; HT Hormone therapy clinical trial; DM Dietary modification clinical trial
