Skip to main content
. 2024 Dec 17;7(12):e2451597. doi: 10.1001/jamanetworkopen.2024.51597

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.

a

P < .001.

b

P < .01.

c

P < .05.

d

Estimates were statistically constrained to each other; slight differences are noted due to standardization of resulting estimate values.

e

Because there was no change in slope, it was constrained to 0.