Table 4.
Results of multiple linear regression analyses between previous pregnancy outcomes and subsequent pregnancy anxiety at each trimester, 3D Cohort Study multigravid participants subsample, maximum N =1505.
| N* | Crude models
|
Partially adjusted models**
|
Fully adjusted models**
|
|||||
|---|---|---|---|---|---|---|---|---|
| β (95% CI) | p | R2 | β (95% CI) | p | β (95% CI) | p | ||
| First trimester (N = 1505) | ||||||||
| Live preterm births | 113 | 0.23 (0.03, 0.44) | 0.028 | 0.007 | 0.19 (−0.01, 0.39) | .063 | 0.16 (−0.04, 0.36) | .10 |
| Live term births | 698 | −0.14 (−0.23, −0.06) | 0.003 | 0.015 | −0.11 (−0.19, −0.03) | .011 | −0.13 (−0.21, −0.05) | 0.002 |
| Stillbirths | 30 | 0.38 (0.01, 0.74) | 0.044 | 0.006 | 0.36 (0.01, 0.71) | .047 | 0.30 (−0.10, 0.70) | 0.13 |
| Elective abortions | 311 | 0.16 (0.05, 0.28) | 0.008 | 0.012 | 0.16 (0.05, 0.27) | .007 | 0.13 (0.03, 0.24) | 0.013 |
| Miscarriages | 416 | 0.11 (0.04, 0.18) | 0.003 | 0.009 | 0.12 (0.05, 0.19) | .002 | 0.11 (0.03, 0.18) | 0.006 |
| Income | −0.02 (−0.05, 0.02) | 0.37 | ||||||
| Non-white race/ethnicity | 0.13 (−0.01, 0.27) | 0.059 | ||||||
| Current smoker | 0.06 (−0.21, 0.32) | 0.64 | ||||||
| Former smoker | −0.23 (−0.39, −0.06) | 0.008 | ||||||
| Unintended pregnancy | 0.51 (0.31, 0.71) | <0.001 | ||||||
| Self-reported complications | 0.21 (0.09, 0.33) | 0.001 | ||||||
| F(5,1499) = 13.85, p <.001, R2 = 0.04 | F(11,1493) = 15.09, p <.001, R2= 0.09 | |||||||
| Second trimester (N = 1447) | ||||||||
| Live preterm births | 97 | 0.09 (−0.15, 0.32) | 0.45 | 0.001 | 0.05 (−0.18, 0.27) | 0.66 | 0.00 (−0.21, 0.21) | 0.99 |
| Live term births | 645 | −0.13 (−0.20, −0.06) | 0.001 | 0.013 | −0.11 (−0.18, −0.04) | 0.004 | −0.13 (−0.20, −0.05) | 0.001 |
| Stillbirths | 27 | 0.37 (0.06, 0.68) | 0.018 | 0.008 | 0.38 (0.07, 0.69) | 0.016 | 0.24 (−0.08, 0.57) | 0.14 |
| Elective abortions | 272 | 0.14 (0.03, 0.25) | 0.012 | 0.007 | 0.13 (0.02, 0.24) | 0.020 | 0.11 (0.00, 0.21) | 0.047 |
| Miscarriages | 390 | 0.05 (−0.02, 0.11) | 0.17 | 0.002 | 0.05 (−0.01, 0.12) | 0.11 | 0.04 (−0.02, 0.10) | 0.19 |
| Income | −0.01 (−0.05, 0.04) | 0.78 | ||||||
| Non-white race/ethnicity | 0.17 (0.09, 0.26) | <0.001 | ||||||
| Current smoker | 0.13 (−0.07, 0.32) | 0.20 | ||||||
| Former smoker | −0.13 (−0.31, 0.06) | 0.17 | ||||||
| Unintended pregnancy | 0.51 (0.32, 0.70) | <0.001 | ||||||
| Self-reported complications | 0.38 (0.19, 0.56) | <0.001 | ||||||
| F(5,1441) = 7.60, p <.001, R2 = 0.02 | F(11,1435) = 13.52, p <.001, R2= 0.09 | |||||||
| Third trimester (N = 1416) | ||||||||
| Live preterm births | 100 | 0.05 (−0.13, 0.22) | 0.60 | <0.001 | 0.01 (−0.16, 0.18) | 0.95 | −0.04 (−0.22, 0.13) | 0.64 |
| Live term births | 611 | −0.11 (−0.19, −0.03) | 0.007 | 0.008 | −0.09 (−0.17, −0.01) | 0.021 | −0.13 (−0.20, −0.06) | <0.001 |
| Stillbirths | 27 | 0.43 (0.12, 0.74) | 0.006 | 0.007 | 0.45 (0.14, 0.75) | 0.004 | 0.40 (0.05, 0.74) | 0.025 |
| Elective abortions | 259 | 0.13 (0.03, 0.22) | 0.009 | 0.006 | 0.11 (0.01, 0.21) | 0.026 | 0.09 (0.00, 0.18) | 0.055 |
| Miscarriages | 362 | −0.02 (−0.09, 0.05) | 0.51 | <0.001 | −0.02 (−0.09, 0.05) | 0.60 | −0.02 (−0.09, 0.06) | 0.64 |
| Income | 0.01 (−0.03, 0.05) | 0.50 | ||||||
| Non-white race/ethnicity | 0.12 (0.01, 0.22) | 0.033 | ||||||
| Unintended pregnancy | 0.59 (0.21, 0.96) | 0.007 | ||||||
| Self-reported complications | 0.22 (0.03, 0.41) | 0.025 | ||||||
| F(5,1410) = 5.85, p <.001, R2 = 0.02 | F(9,1406) =11.12, p <.001, R2= 0.06 | |||||||
*
N reported is number of participants with at least one of each previous pregnancy outcome. Analyses are based on continuous number of outcomes.
**
Partially adjusted models include adjustment for each previous pregnancy outcome; fully adjusted models include adjustment for other listed variables as well.