Table 3. Individual Linear Growth Models of Standardized Estimated EPDS (Depression) and PSS (Stress) Scores Across the Prenatal Period by PCU Status.
Model | EPDS score, β (SE) | PSS score, β (SE) | ||||
---|---|---|---|---|---|---|
No PCU (n = 253) | PCU for other reasons (n = 94) | PCU for mental health (n = 131) | No PCU (n = 223) | PCU for other reasons (n = 78) | PCU for mental health (n = 116) | |
Initial model | ||||||
Intercept | 1.54 (0.16)a | 1.18 (0.16)a | 2.37 (0.38)a | 2.50 (0.24)a | 2.26 (0.31)a | 3.36 (0.44)a |
Slope | −0.36 (0.12)b | −0.05 (0.12) | −0.68 (0.32)c | −0.34 (0.14)b | −0.04 (0.13) | −0.37 (0.18)c |
Slope-intercept correlation | −0.35 (0.14)b | −0.68 (0.11)a | −0.27 (0.29) | −0.41 (0.14)b | −0.50 (0.12)a | −0.69 (0.11)a |
Best-fitting model | ||||||
Intercept | 1.56 (0.15)a | 1.63 (0.22)a | 2.30 (0.37)a | 2.51 (0.24)a | 2.92 (0.22)a | 3.34 (0.43)a |
Slope | −0.43 (0.12)a,d | 0.00e | −0.51 (0.23)c,d | −0.36 (0.13)b,d | 0.00 | −0.32 (0.12)b,d |
Slope-intercept correlation | −0.36 (0.13)b | 0.00e | −0.28 (0.28) | −0.41 (0.14)b | 0.00 | −0.69 (0.11)a |
Abbreviations: EPDS, Edinburgh Postnatal Depression Scale; PCU, prenatal cannabis use; PSS, Perceived Stress Scale.
P < .001.
P < .01.
P < .05.
Estimates were statistically constrained to each other; slight differences are noted due to standardization of resulting estimate values.
Because there was no change in slope, it was constrained to 0.