Table 6.
Predictors of family contact form (FCF) return by cancer cases contacted by the Family CARE Study, 2009 to 2011.
| Variable | FCF returned ( n ,%) | FCF not returned ( n ,%) | Crude odds ratio | 95% confidence interval | Adjusted odds ratio: all variables | 95% confidence interval |
|---|---|---|---|---|---|---|
|
Total number |
2,043 (52.6%) |
1,840 (47.4%) |
|
|
|
|
|
Case age group at study contact |
|
|
|
|
|
|
| ≤49 |
199 (47.8%) |
217 (52.2%) |
Referent |
Referent |
Referent |
Referent |
| 50 to 59 |
920 (47.4%) |
1019 (52.6%) |
0.98 |
0.79, 1.22 |
1.02 |
0.76, 1.36 |
| 60+ |
924 (60.5%) |
604 (39.5%) |
1.67 |
1.34, 2.08 |
1.16 |
0.82, 1.65 |
|
Case age group at diagnosis |
|
|
|
|
|
|
| ≤40 |
60 (69%) |
27 (31%) |
Referent |
Referent |
Referent |
Referent |
| 41 to 50 |
600 (49.3%) |
618 (50.7%) |
0.44 |
0.27, 0.69 |
0.82 |
0.45, 1.48 |
| 51+ |
1,383 (53.6%) |
1,195 (46.4%) |
0.52 |
0.33, 0.83 |
0.84 |
0.45, 1.57 |
|
Diagnosis year |
|
|
|
|
|
|
| Before 2000 |
194 (84%) |
37 (16%) |
Referent |
Referent |
Referent |
Referent |
| 2001 to 2004 |
406 (85.3%) |
70 (14.7%) |
1.11 |
0.72, 1.71 |
1.30 |
0.83, 2.05 |
| 2005 to 2009 |
1,443 (45.4%) |
1,733 (54.6%) |
0.16 |
0.11, 0.23 |
1.27 |
0.80, 2.00 |
|
Ethnicity
a
|
|
|
|
|
|
|
| Hispanic |
163 (31.2%) |
360 (68.8%) |
0.39 |
0.32, 0.47 |
0.62 |
0.50, 0.78 |
| Non-Hispanic |
1,656 (54%) |
1,410 (46%) |
Referent |
Referent |
Referent |
Referent |
|
Race |
|
|
|
|
|
|
| Nonwhite |
329 (48.9%) |
344 (51.1%) |
0.84 |
0.71, 0.98 |
0.66 |
0.51, 0.84 |
| White |
1,714 (53.4%) |
1,496 (46.6%) |
Referent |
Referent |
Referent |
Referent |
|
Rural or urban status |
|
|
|
|
|
|
| Rural |
425 (57.2%) |
318 (42.8%) |
1.26 |
1.07, 1.48 |
1.31 |
1.08, 1.58 |
| Urban |
1,618 (51.5%) |
1,522 (48.5%) |
Referent |
Referent |
Referent |
Referent |
|
Sex |
|
|
|
|
|
|
| Female |
960 (55.6%) |
767 (44.4%) |
1.24 |
1.09, 1.41 |
1.25 |
1.07, 1.46 |
| Male |
1,083 (50.2%) |
1,073 (49.8%) |
Referent |
Referent |
Referent |
Referent |
|
Cancer stage |
|
|
|
|
|
|
| Local |
869 (49%) |
905 (51%) |
Referent |
Referent |
Referent |
Referent |
| Regional or distant |
1,174 (55.7%) |
935 (44.3%) |
1.31 |
1.15, 1.48 |
1.05 |
0.91, 1.23 |
|
Registry source |
|
|
|
|
|
|
| California |
827 (33.9%) |
1,611 (66.1%) |
Referent |
Referent |
Referent |
Referent |
| Idaho |
115 (83.9%) |
22 (16.1%) |
10.18 |
6.40, 16.19 |
8.28 |
5.11, 13.41 |
| Colorado |
213 (81.9%) |
47 (18.1%) |
8.83 |
6.37, 12.24 |
7.12 |
5.97, 18.98 |
| New Mexico |
51 (64.6%) |
28 (35.4%) |
3.55 |
2.22, 5.67 |
3.32 |
2.04, 5.41 |
| Utah | 837 (86.4%) | 132 (13.6%) | 12.35 | 10.09, 15.11 | 10.89 | 8.08, 14.66 |
a Due to small numbers (n ≤ 5), those with other family relationships to the cancer case (e.g., nephew, niece) were not included in the analysis.
b Due to limited data availability, rural/urban status for non-consenting cases could not always be determined. Thus, these individuals (n = 161) are missing from the data.