Table 2.
Models for outcomes related to sleep, fatigue, subjective sleep disturbance, and postpartum depression in primiparous women and their infants randomised to sleep intervention or usual care and in all women over time
Sleep intervention −usual care | Week 12−week 6 | Compared with baseline | ||||||
---|---|---|---|---|---|---|---|---|
Difference/rate ratio (95% CI) | Standard error, P value | Difference/rate ratio (95% CI) | Standard error, P value | Regression coefficient for baseline | Standard error, P value | |||
Nocturnal sleep, maternal | 5.97* (−7.55 to 19.5) | 6.90, 0.39 | 39.3* (32.1 to 46.5) | 3.68, <0.001 | — | — | ||
Longest stretch of nocturnal sleep, infant | −0.18*(−16.1 to 15.8) | 8.13 , 0.98 | 59.5* (48.0 to 71.0) | 5.87, <0.001 | — | — | ||
Fatigue VAS | 3.64* (−0.72 to 8.00) | 2.23, 0.10 | −8.52* (−10.87 to −6.17) | 1.20, <0.001 | — | — | ||
EPDS score | 0.21* (−0.62 to 1.04) | 0.42, 0.62 | −0.81* (−1.31 to −0.32) | 0.25, 0.001 | 0.40 (0.29 to 0.51) | 0.06, <0.001 | ||
GSDS score | 1.11* (−2.64 to 4.86) | 1.91, 0.56 | −4.90* (−6.95 to −2.85) | 1.05, <0.001 | 0.29 (0.18 to 0.40) | 0.06, <0.001 | ||
Night awakenings, maternal | −0.012† (−0.12 to 0.10) | 0.056, 0.83 | 0.019†(−0.039 to 0.077) | 0.03, 0.53 | — | — | ||
Night awakenings, infant | 0.036† (−0.043 to 0.12) | 0.040, 0.37 | −0.25† (−0.31 to −0.19) | 0.031, <0.001 | —— |
Fatigue VAS=fatigue visual analogue scale; EPDS=Edinburgh postnatal depression scale; GSDS=general sleep disturbance scale. Models for 12 weeks minus 6 weeks and comparison with baseline include both sleep intervention and usual care participants
*Mean difference.
†Log rate ratio.