Table 4.

Parent-rated sleep problems and sleep education-related outcomes from questionnaire at 4 and 6 months

							p Value for intervention
Outcome	Infant age (months)	n	Control	FAB	Sleep	Combination	∆ Four groups	∆ Two groups*
Infant sleep problem score†‡§
Mother-rated	4	718	2.0 (1.9)	2.3 (1.9)	2.2 (1.9)	2.0 (2.0)
	6	701	2.2 (2.0)	2.6 (1.9)	2.4 (2.0)	2.3 (1.9)	0.176	0.961
Partner-rated	4	469	1.9 (1.8)	2.3 (1.8)	2.3 (1.8)	2.2 (1.8)
	6	428	2.3 (1.8)	2.5 (1.9)	2.4 (1.8)	2.3 (1.7)	0.117	0.410
Infant unsettled, n (%)	4	711	11 (5.7)	16 (9.0)	11 (6.4)	11 (6.5)
	6	700	15 (8.0)	15 (8.3)	11 (6.6)	7 (4.2)	0.557	0.375
Sleep latency ≥30 min, n (%)	4	715	10 (5.2%)	10 (5.6%)	16 (9.3%)	14 (8.2%)
	6	701	18 (9.6%)	15 (8.3%)	22 (13.2%)	5 (3.0%)	0.038	0.160
Recognise tired signs score¶	4	717	6.1 (0.9)	6.0 (0.9)	6.1 (0.9)	6.1 (0.9)
	6	700	6.2 (0.8)	6.1 (0.8)	6.1 (0.9)	6.3 (0.8)	0.166	0.805
Infant put to bed awake score¶	4	717	5.1 (1.8)	5.1 (1.8)	5.4 (1.7)	5.4 (1.8)
	6	700	5.5 (1.8)	5.2 (1.8)	5.5 (1.8)	5.6 (1.6)	0.129	0.052
No parental contact score¶	4	717	5.0 (1.8)	5.0 (1.7)	5.3 (1.9)	5.0 (2.0)
	6	700	5.3 (1.8)	5.1 (1.9)	5.3 (1.9)	5.1 (2.0)	0.444	0.389
Bedsharing, n (%)	4	720	11 (5.6%)	12 (6.6%)	12 (7.0%)	17 (9.9%)
	6	685	11 (6.0%)	12 (6.9%)	7 (4.1%)	13 (8.2%)	–	–
Smoking allowed at home, n (%)	4	717	4 (2.1%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
	6	687	1 (0.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	–	–
Smoking allowed in car when children present, n (%)	4	702	2 (1.1%)	3 (1.7%)	2 (1.2%)	0 (0.0%)
	6	686	1 (0.6%)	1 (0.6%)	3 (1.8%)	3 (1.8%)	–	–
Sleeping on back, n (%)	4	718	176 (90.3%)	164 (91.1%)	152 (88.9%)	150 (87.2%)	0.631	0.254
Sheepskin use, n (%)	4	720	27 (13.9%)	17 (9.4%)	26 (15.1%)	27 (15.7%)	0.374	0.240

Data presented as mean (SD) unless stated otherwise.

*‘Sleep’ (control and FAB combined) versus ‘No Sleep’ (sleep and combination combined).

†Secondary outcome to the main RCT.³⁰ All others variables are additional outcomes.

‡From a possible score of 1 (no problem) to 8 (large problem), thus higher score is better.

§Mean is geometric mean.

¶From a possible score of 1 (never) to 7 (always), thus higher score is better.

–, Model not investigated due to small number of events not allowing estimating intervention effects with stratification variables included.

FAB, food, activity and breastfeeding intervention; RCT, randomised controlled trial.