Table 2.
Odds Ratios (95% Confidence Intervals*) | |||
---|---|---|---|
Alters Use of Screening | Mammogram in past year | PSA in past year | Stool card in past year and/or flex sig in past 5 years |
Siblings Ω | |||
10% increase in proportion of siblings with test | 1.034 (1.000 to 1.065)† | 1.005 (0.969 to 1.042) | 1.009 (0.992 to 1.027) |
Number of siblings | 0.85 (0.72 to 1.01)‡ | 0.87 (0.72 to 1.07) | 0.95 (0.89 to 1.02) |
Friends | |||
10% increase in proportion of friends with test | 1.012 (0.958 to 1.070) | 1.021 (0.970 to 1.074) | 1.017 (0.986 to 1.049) |
Number of friends | 0.96 (0.57 to 1.64) | 1.08 (0.73 to 1.59) | 0.73 (0.58 to 0.91)† |
Coworkers | |||
10% increase in proportion of coworkers with test | 0.987 (0.941 to 1.037) | 0.947 (0.803 to 1.021) | 1.023 (0.984 to 1.064) |
Number of coworkers | 0.96 (0.86 to 1.07) | 1.11 (0.89 to 1.38) | 0.97 (0.89 to 1.05) |
Spouse screened among married (%) | |||
Unmarried | - | - | 1.0 |
Married, spouse screened | - | - | 1.66 (1.39 to 1.98)† |
Married, spouse not screened | - | - | 1.06 (0.89 to 1.27) |
Married, unknown if spouse screened | - | - | 1.07 (0.89 to 1.27) |
Age | 1.02 (1.01 to 1.04)† | 1.05 (1.03 to 1.08)† | 1.02 (1.01 to 1.03)† |
Married | 1.63 (1.33 to 2.00)† | 1.73 (1.29 to 2.31)† | - |
Sex | |||
Male | - | - | 1.0 |
Female | - | - | 1.00 (0.87 to 1.15) |
Years of education | 0.99 (0.94 to 1.03) | 1.08 (1.04 to 1.12)† | 1.06 (1.03 to 1.09)† |
# of children | 0.99 (0.92 to 1.05) | 0.95 (0.89 to 1.02) | 1.00 (0.96 to 1.04) |
Currently working | 0.90 (0.73 to 1.10) | 0.90 (0.71 to 1.14) | 0.85 (0.74 to 0.98)† |
Physical activity | 1.05 (1.00 to 1.09)† | 1.00 (0.96 to 1.04) | 1.00 (0.98 to 1.02) |
# drinks/week | 1.00 (0.98 to 1.02) | 1.00 (0.99 to 1.01) | 1.00 (1.00 to 1.01) |
Smokes | 0.56 (0.44 to 0.71)† | 0.71 (0.54 to 0.94)† | 0.62 (0.51 to 0.74)† |
Self reported health status | |||
Very good/excellent | 1.0 | 1.0 | 1.0 |
Good | 1.01 (0.84 to 1.21) | 0.95 (0.78 to 1.15) | 0.97 (0.86 to 1.09) |
Fair/poor | 1.09 (0.74 to 1.61) | 0.85 (0.56 to 1.27) | 1.04 (0.82 to 1.32) |
Unknown | 0.37 (0.15 to 0.95)† | 0.64 (0.21 to 1.94) | 0.37 (0.20 to 0.69)† |
Number of comorbid illnesses¶ | 0.80 (0.65 to 0.99)† | 0.76 (0.62 to 0.94) | 0.83 (0.73 to 0.94) |
Survey wave | |||
Wave 6 | 1.0 | 1.0 | 1.0 |
Wave 7 | 1.40 (1.21 to 1.62) | 1.59 (1.35 to 1.87) | 1.52 (1.38 to 1.67) |
Using generalized estimating equations to account for clustering within participants because some participants had data from both waves 6 & 7 and/or functioned (multiple times) as alters. Adjusted for participant age, level of education, marital status, number of children, employment status, level of physical activity, smoking status, self-reported health status, coronary heart disease, diabetes, chronic obstructive pulmonary disease, and survey wave.
Only female siblings, friends, and coworkers were included in mammography analyses, only male siblings in PSA analysis.
PSA=prostate specific antigen
P<.05
P<.10
Considering heart disease, diabetes, and chronic obstructive pulmonary disease
Siblings included sisters for mammography analysis, brothers for PSA analysis, and sisters and brothers for colorectal screening analysis who met screening criteria.