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Table 5 Comparison of intervention and control group parents for psychological variables

From: A randomized controlled trial of an intervention for infants’ behavioral sleep problems

 

Baseline mean (SD) (n)

6 week follow-up mean (SD) (n)

Baseline adjusted difference

95 % confidence interval

P-value

Fatigue MAFa

     

 Sleep intervention

26.8 (9.2) (n = 206)

18.7 (8.1) (n = 206)

−3.7

−5.74 to −1.68

0.001

 Safety control

27.1 (8.6) (n = 204)

22.3 (9.2) (n = 204)

   

Depression CES-Db

     

 Sleep intervention

13.8 (9) (n = 206)

9.4 (7.7) (n = 206)

−2

−3.7 to −0.4

0.02

 Safety control

15.4 (10.2) (n = 205)

12 (9) (n = 205)

   

Sleep quality PSQIc

     

 Sleep intervention

8.1 (3.6) (n = 206)

5.7 (3) (n = 206)

−0.88

−1.5 to −0.2

0.009

 Safety control

8.3 (3.4) (n = 201)

6.5 (3.3) (n = 202)

   

Cognitions MCISQd

   

 Sleep intervention

n = 223

n = 205

 

 Safety control

n = 230

n = 205

 

Sleep doubtse

     

 Sleep intervention

7.2 (4.1)

4.3 (3.6)

−1.3

−2.0 to −0.6

<.001

 Safety control

6.9 (4.2)

5.5 (4)

   

Sleep angerf

     

 Sleep intervention

6.8 (3.4)

5.2 (3.1)

−1.1

−1.8 to −0.4

0.003

 Safety control

7.3 (4)

6.5 (3.8)

   

Sleep and feedingg

     

 Sleep intervention

7.3 (3.6)

3.9 (3.4)

−1.4

−2.1 to −0.7

<.001

 Safety control

6.9 (3.6)

5.2 (3.3)

   

Setting sleep limitsh

     

 Sleep intervention

14.9 (4.9)

10.1 (4.8)

−2.48

−3.5 to −1.5

<.001

 Safety control

14.9 (4.9)

12.4 (5.2)

   

Sleep safetyi

     

 Sleep intervention

2.9 (2.5)

1.9 (2)

−0.3

0.7 to 0.1

0.12

 Safety control

2.7 (2.4)

2.2 (2.3)

   
  1. aMultidimensional Assessment of Fatigue Scale (global score range 1–50; higher scores indicate greater fatigue)
  2. bCentre for Epidemiologic Studies Depression Measure (score range 0–60, higher scores indicate worse depression)
  3. cPittsburgh Sleep Quality Index (global score range 0–21; higher scores indicate worse sleep quality)
  4. dMaternal Cognitions about Infant Sleep Questionnaire (higher scores indicate more parent difficulty)
  5. Subscale score range for: eDoubts about managing sleep = 0–25, fAnger about infant sleep = 0–25
  6. gManaging infant sleep and feeding = 0–15, hSetting i nfant sleep limits = 0–25, iInfant sleep safety = 0–10. The means were adjusted for baseline