Unadjusted and adjusted weighted percentages of relatives with unknown cancer history, by respondent and relative characteristics
| Characteristics | FDRs (n = 6,242) | SDRs (n = 14,262) | ||
|---|---|---|---|---|
| Unadjusted % (95% CI) | Adjusted % (95% CI) | Unadjusted % (95% CI) | Adjusted % (95% CI) | |
| Respondents | ||||
| Sex | ||||
| Female | 0.6 (0.4-0.9) | 7.0 (5.8-8.3) | 7.0 (5.7-8.2) | |
| Male | 0.7 (0.4-1.2) | 10.2 (8.5-12.3) | 10.3 (8.5-12.1) | |
| P = 0.002 | ||||
| Age | ||||
| 25-34 | 0.4 (0.2-1.0) | 6.2 (4.4-8.7) | ||
| 35-44 | 0.6 (0.3-1.2) | 8.5 (6.8-10.6) | ||
| 45-54 | 0.8 (0.4-1.3) | 8.5 (6.8-10.5) | ||
| 55-64 | 0.7 (0.3-1.6) | 10.6 (8.2-13.6) | ||
| Race/ethnicity | ||||
| White | 0.5 (0.3-0.7) | 0.5 (0.3-0.7) | 8.1 (6.9-9.4) | |
| African-American | 0.7 (0.2-2.0) | 0.5 (0.0-1.1) | 9.0 (5.1-15.5) | |
| Hispanic | 1.7 (0.6-5.0) | 1.6 (0.0-3.3) | 6.8 (3.6-12.4) | |
| Other | 1.9 (0.8-4.5) | 2.4 (0.4-4.4) | 15.8 (9.5-25.1) | |
| P = 0.01 | ||||
| Education | ||||
| <High school, vocational, or other | 1.6 (0.8-3.2) | 1.2 (0.5-1.8) | 12.2 (9.0-16.5) | 11.8 (8.3-15.3) |
| High school | 1.0 (0.5-2.0) | 0.8 (0.1-1.5) | 8.1 (6.0-10.9) | 8.1 (5.9-10.3) |
| 1-4 y college | 0.3 (0.1-0.5) | 0.3 (0.1-0.6) | 7.2 (5.9-8.9) | 7.3 (6.1-8.6) |
| >College | 0.4 (0.2-0.9) | 0.5 (0.1-0.9) | 8.4 (6.0-11.5) | 8.7 (6.4-11.0) |
| P = 0.04, test for trend | P = 0.05 | |||
| Main parental living arrangement during childhood | ||||
| Lived together | 0.5 (0.3-0.7) | 7.5 (6.5-8.8) | 7.8 (6.6-9.0) | |
| Lived apart | 1.8 (0.9-3.5) | 13.7 (10.9-17.1) | 12.4 (10.0-14.8) | |
| P = 0.0004 | ||||
| Ever had cancer | ||||
| No or unknown | 0.6 (0.4-0.8) | 8.1 (7.0-9.3) | 8.0 (6.9-9.2) | |
| Yes | 1.3 (0.5-3.2) | 12.4 (8.3-18.2) | 13.2 (9.1-17.3) | |
| P = 0.006 | ||||
| Household income | ||||
| ≤$20,000 | 0.6 (0.1-2.9) | 9.3 (6.6-13.0) | ||
| $20,001-40,000 | 1.2 (0.6-2.3) | 11.4 (8.3-15.5) | ||
| $40,001-60,000 | 1.0 (0.5-2.0) | 7.2 (5.0-10.3) | ||
| $60,001-80,000 | 0.1 (0.0-0.7) | 7.8 (5.5-11.0) | ||
| >$80,000 | 0.5 (0.2-0.9) | 6.8 (5.4-8.5) | ||
| Don't know/refused | 0.9 (0.3-2.8) | 13.4 (9.1-19.2) | ||
| Total number of relatives | ||||
| ≤15 | 1.0 (0.5-1.7) | 8.5 (6.7-10.7) | ||
| 16-19 | 0.4 (0.2-1.1) | 6.0 (4.3-8.3) | ||
| 20-25 | 0.3 (0.1-0.7) | 9.0 (7.3-11.1) | ||
| ≥26 | 0.8 (0.4-1.5) | 9.6 (7.4-12.3) | ||
| Relatives | ||||
| Sex | ||||
| Female | 0.5 (0.3-0.9) | 7.5 (6.3-8.9) | ||
| Male | 0.8 (0.5-1.2) | 9.4 (8.3-10.7) | ||
| Vital status | ||||
| Living | 0.4 (0.3-0.6) | 0.5 (0.3-0.8) | 3.0 (2.2-3.9) | 4.0 (2.8-5.1) |
| Deceased | 1.0 (0.5-2.1) | 0.5 (0.1-0.8) | 12.4 (10.7-14.3) | 9.7 (8.1-11.2) |
| Unknown | 49.0 (22.7-75.9) | 22.7 (1.6-43.8) | 73.9 (61.8-83.2) | 58.6 (44.9-72.3) |
| P < 0.0001 | P < 0.0001 | |||
| Generation* | ||||
| Same or younger | 0.2 (0.1-0.4) | 0.3 (0.1-0.4) | 1.2 (0.6-2.2) | 2.3 (0.9-3.7) |
| Next older | 1.4 (1.0-2.1) | 1.4 (0.7-2.0) | 10.2 (8.5-12.2) | 9.9 (8.2-11.6) |
| Oldest | NA | NA | 12.9 (11.1-14.8) | 9.7 (8.2-11.2) |
| P = 0.0001 | P < 0.0001 | |||
NOTE: All percentages are weighted to the Connecticut population and adjusted for differential selection probabilities, rates of nonresponse, and poststratification. Adjusted percentages control for respondent age and race/ethnicity and for other respondent and relative characteristics that were significantly associated with unknown cancer history in final logistic regression models. Cells for variables that were not applicable to a particular model are labeled NA; cells for variables that were eliminated through backward stepwise regression are blank.
↵*Same or younger generation as the respondent includes siblings, children, and/or nieces and nephews; older includes parents, aunts, and uncles; oldest includes grandparents.