Table 4.
Multiple regression analysis on physical activity in pregnant women with a high risk for GDM (N = 537)
| Independent variables | B | SE | β | t | P | 95% CI for B | |
|---|---|---|---|---|---|---|---|
| Lower | Upper | ||||||
| Constant | 6.49 | 21.15 | 0.31 | 0.759 | -35.06 | 48.04 | |
| Physical activity self-efficacy | 1.86 | 0.52 | 0.16 | 3.59 | <0.001 | 0.84 | 2.88 |
| Knowledge | 2.92 | 0.85 | 0.15 | 3.45 | 0.001 | 1.26 | 4.58 |
| Social support | 0.52 | 0.22 | 0.10 | 2.36 | 0.019 | 0.09 | 0.95 |
| Educationa | |||||||
| ≤ High school | -15.10 | 8.07 | -0.08 | -1.98 | 0.048 | -31.85 | -0.15 |
| ≥ Junior college | Reference category | ||||||
| Type of conceptionb | |||||||
| Assisted reproductive technology | -23.52 | 7.72 | -0.13 | -3.05 | 0.002 | -38.69 | -8.36 |
| Spontaneous | Reference category | ||||||
Overall R2 = 0.137; model fit: F = 17.969, p < 0.001, Statistically significant at p < 0.05
aEducation: ≥ Junior college = 0, ≤ High school = 1
bType of conception: Spontaneous = 0, Assisted reproductive technology = 1
VIF: 1.065 ~ 1.297; Bold values indicate statistical significance (p ＜ 0.05)