TABLE 2.

Final Models Identifying Characteristics of Health Information Gatherers, Disseminators, and Blockers: Breast Imaging Study, United States, 2001–2007

Variable	Gatherers, OR (99% CI)	Disseminators, OR (99% CI)	Blockers, OR (99% CI)
Women	1.74** (1.33, 2.26)	1.18 (0.82, 1.69)	1.65** (1.21, 2.25)
Kinship
Participant	5.34** (3.23, 8.82)	14.27** (8.65, 23.56)	1.15 (0.60, 2.21)
First-degree relative	1.58** (1.06, 2.36)	1.24 (0.83, 1.85)	10.69** (6.64, 17.22)
Second-degree relative	1.27 (0.93, 1.73)	0.69 (0.44, 1.06)	2.00** (1.33, 3.00)
Spouse or partnera	1.43 (0.72, 2.83)	0.95 (0.48, 1.88)	5.26** (2.60, 10.62)
Nonbiological familyb (Ref)	1.00	1.00	1.00
Social kin	0.55** (0.36, 0.82)	0.67 (0.38, 1.19)	0.34** (0.21, 0.55)
Generation
Younger	0.41** (0.25, 0.66)	0.06** (0.04, 0.08)	0.19** (0.11, 0.34)
Same (Ref)	1.00	1.00	1.00
Older	0.33** (0.22, 0.48)	1.23 (0.87, 1.75)	0.71 (0.49, 1.03)
Cancer history		2.03** (1.41, 2.93)
Provides tangible assistance		1.66** (1.18, 2.35)
Provides emotional support	2.28** (1.49, 3.49)	1.57** (1.10, 2.24)	0.39** (0.26, 0.58)
Female x first-degree relative		3.60** (2.23, 5.80)	0.47** (0.28, 0.80)
Female x second-degree relative		3.32** (1.82, 6.09)
Younger x first-degree relative			0.36* (0.15, 0.84)
Older x first-degree relative	4.11** (2.41, 7.03)

Note. CI = confidence interval; OR = odds ratio. Sample size for gatherers was n = 4206; sample size for disseminators and for blockers was n = 5466. Analyses were controlled for the number of participants per family, newly recruited families, whether the alter was deceased, density, in-stars (variability in the number of network members who are chosen as gatherers, disseminators, or blockers of information within a family), and out-stars (variability across participants in the number of network members they report as gatherers, disseminators, or blockers of information).

^aIncludes ex-spouses and partners.

^bExcludes spouse or partner.

* P < .01; **P < .001.