Table 5.
Predicting behavior change following genetic testing for a specific disease (N = 1,327)
| Variables | Model 1 | Model 2 | Model 3 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B (standard error)a | ORb | χ2c | R 2d | B (standard error)a | ORb | χ2 | R 2d | B (standard error)a | ORb | χ2c | R 2d | |
| Block 1 | 85.04 | 0.11** | 265.22 | 283.87 | ||||||||
| Gendere | ||||||||||||
| Female | −0.15 (0.18) | 0.86 | 0.65 | −0.33 (0.21) | 0.71 | 2.42 | −0.36 (0.21) | 0.69 | 2.82 | |||
| Agee | ||||||||||||
| 35–49 years | 0.66 (0.32)* | 1.93 | 4.12 | 0.67 (0.36) | 1.95 | 3.42 | 0.71 (0.36) | 2.03 | 3.74 | |||
| 50–64 years | 0.95 (0.31)** | 2.59 | 8.89 | 0.95 (0.36) | 2.59 | 6.95 | 0.94 (0.36)* | 2.57 | 6.63 | |||
| 65–74 years | 0.96 (0.38)* | 2.61 | 6.33 | 1.04 (0.43) | 2.84 | 5.67 | 0.97 (0.44)* | 2.63 | 4.77 | |||
| Above 75 years | 1.22 (0.44)** | 3.39 | 7.50 | 1.28 (0.51) | 3.61 | 6.17 | 1.23 (0.52)* | 3.43 | 5.57 | |||
| Marital statuse | ||||||||||||
| Married | −0.37 (0.23) | 0.69 | 2.59 | −0.38 (0.25) | 0.68 | 2.20 | −0.48 (0.26) | 0.61 | 3.40 | |||
| Not married anymore | −0.34 (0.26) | 0.70 | 1.75 | −0.36 (0.29) | 0.69 | 1.56 | −0.35 (0.29) | 0.70 | 1.44 | |||
| Employment statuse | ||||||||||||
| Employment | 0.19 (0.22) | 1.21 | 0.70 | 0.24 (0.25) | 1.27 | 0.88 | 0.15 (0.25) | 1.16 | 0.34 | |||
| Education statuse | ||||||||||||
| Some college | 0.67 (0.28)* | 0.02 | 5.35 | 0.70 (0.32) | 2.02 | 4.68 | 0.70 (0.32)* | 2.02 | 4.58 | |||
| Bachelors | 0.23 (0.24) | 0.34 | 0.91 | 0.35 (0.27) | 1.42 | 1.69 | 0.37 (0.27) | 1.45 | 1.90 | |||
| Postbaccalaureate | 0.34 (0.23) | 0.15 | 2.06 | 0.36 (0.26) | 1.43 | 1.85 | 0.34 (0.37) | 1.40 | 1.60 | |||
| Racee | ||||||||||||
| Non-Hispanic African American | 1.36 (0.22)** | 3.91 | 37.69 | 1.27 (0.25) | 3.56 | 25.62 | 1.22 (0.25)** | 3.41 | 23.50 | |||
| Hispanic | 0.77 (0.24)** | 2.17 | 10.10 | 0.80 (0.27) | 2.23 | 8.73 | 0.75 (0.27)** | 2.12 | 7.43 | |||
| Non-Hispanic Asian and other | 0.59 (0.33) | 1.81 | 3.25 | 0.51 (0.36) | 1.67 | 1.97 | 0.51 (0.37) | 1.67 | 1.90 | |||
| Annual incomee | ||||||||||||
| 20,000 to <35,000 | −0.32 (0.34) | 0.72 | 0.89 | −0.03 (0.39) | 0.96 | 0.00 | 0.01 (0.39) | 1.01 | 0.00 | |||
| 35,000 to <50,000 | −0.72 (0.36)* | 0.48 | 4.01 | −0.48 (0.40) | 0.61 | 1.45 | −0.41 (0.40) | 0.65 | 1.06 | |||
| 50,000 to <75,000 | −0.08 (0.32) | 0.91 | 0.07 | 0.31 (0.36) | 1.36 | 0.71 | 0.37 (0.37) | 1.44 | 1.00 | |||
| Above 75,000 | −0.62 (0.31)* | 0.53 | 3.92 | −0.42 (0.36) | 0.65 | 1.39 | −0.32 (0.36) | 0.72 | 0.77 | |||
| Block 2 | 0.34** | |||||||||||
| Reasons to get genetic testingf | ||||||||||||
| Doctor’s recommendation | 1.23 (0.21) | 3.44 | 32.88 | 0.92 (0.22)** | 2.52 | 16.91 | ||||||
| Understanding family | −0.58 (0.26) | 0.56 | 4.92 | −0.30 (0.27) | 0.73 | 1.26 | ||||||
| Finding family | −0.44 (0.36) | 0.64 | 1.46 | −0.30 (0.38) | 0.73 | 0.63 | ||||||
| Personal trait | 0.17 (0.32) | 1.19 | 0.28 | 0.28 (0.33) | 1.32 | 0.72 | ||||||
| Risk to develop disease | 1.26 (0.20) | 3.55 | 39.15 | 1.15 (0.20)* | 3.17 | 31.53 | ||||||
| Learn strategies | 1.75 (0.34) | 5.79 | 26.35 | 1.76 (0.35)* | 5.82 | 25.24 | ||||||
| Prenatal | −0.49 (0.28) | 0.61 | 2.99 | −0.61 (0.28)* | 0.54 | 4.60 | ||||||
| Received a gift | −1.51 (0.74) | 0.22 | 4.11 | −1.39 (0.75) | 0.24 | 3.40 | ||||||
| Block 3 | 0.36** | |||||||||||
| Confidentg: somewhat | −0.04 (0.42) | 0.96 | 0.00 | |||||||||
| Completely/very | 0.21 (0.40) | 1.23 | 0.28 | |||||||||
| Seek help for understandingh | 1.31 (0.34)** | 3.72 | 14.95 | |||||||||
Outcome variable change in behavior in response to any genetic testing (no) serve as a reference category.
aEstimated regression (beta) coefficients and standard error and so on for effects when they were entered into the models.
bEstimated regression (odds ratio) coefficients and so on for effects in the models.
cLikelihood ratio chi-square test statistics are reported for tests of blocks and models; Wald chi-square test statistics are reported for tests of predictors.
dNagelkerke R Square.
eGender (male), age (18–24), marital status (single), employment status (unemployment) education (< school and high school), race (non-Hispanic white), and annual income (<USD 20,000) were considered as reference.
fReasons to get genetic testing (no) serve as reference category.
gConfident about test accuracy (not at all/little bit) coded as reference.
hSeek help for understanding (no) serve as a reference category.
*p < 0.05.
**p < 0.01.