Supplemental Table 2: Parameter Estimates for the Contribution of Perceived Infant Sleep Problems to the Variance in Maternal Characteristics and Perceived Infant Temperament

? / SE / z / P / 99% Conf. Interval
PSQI
Factor 1 / - .485 / .079 / -6.15 / <.001 / - .637 / - .330
Global Score item / .045 / .085 / 0.54 / 0.592 / - .120 / .211
Constant / 1.921 / .183 / 10.51 / <.001 / 1.563 / 2.279
EPDS
Factor 1 / - .265 / .095 / -2.79 / 0.005 / - .452 / - .079
Global Score item / .247 / .089 / 2.77 / 0.006 / .073 / .422
Constant / .953 / .170 / 5.60 / <.001 / .620 / 1.287
ICQ Fussy
Factor 1 / - .273 / .084 / -3.25 / 0.001 / - .438 / - .108
Global Score item / .271 / .083 / 3.25 / 0.001 / .108 / .435
Constant / 2.845 / .239 / 12.39 / <.001 / 2.376 / 3.314
Bonding (total score)
Factor 1 / - .348 / .122 / -2.86 / 0.004 / - .587 / - .110
Global Score item / .134 / .099 / 1.34 / 0.179 / .061 / .330
Constant / .804 / .172 / 4.86 / <.001 / .467 / 1.140
Goodness-of-fit statistics
Fitted / Predicted / Residual / R2 / R / mc2*
PSQI / 13.534 / 3.531 / 10.003 / .260 / .511 / .260
EPDS / 20.405 / 4.207 / 16.197 / .206 / .454 / .206
ICQ Fussy / 0.935 / 0.218 / 0.716 / .233 / .483 / .233
Bonding / 134.566 / 26.719 / 111.848 / .193 / .439 / .193
Overall / .471

Note: Standardized coefficients, standard error, and significances for the contribution of Factor 1 from the infant sleep questionnaire (ISQ) and the global score item regarding infant sleep problems, to maternal mood (EPDS), maternal sleep (PSQI), mother-reported infant temperament (ICQ), and bonding scale. The the fit statistic of the SEM was ?2= 170.581, p<.001, with RMSEA=0, the comparative fit index (CFI) =1.0, and a perfect stability index (= 0). The pooled correlation was at R2=0.420. mc2 is the Bentler–Raykov squared multiple correlations.