Table 3.

Changes in delta-PSQI and absolute PSQI between and within product groups, taking intervention periods 1 and 2 together.

	Products		p-Value 1
	DP	Placebo
ITT
Change d0–d7	−0.72 ± 3.25	−0.62 ± 2.64	0.841
Change d0–d14	−0.93 ± 2.84	−0.41 ± 3.35	0.325
Change d0–d21	−0.46 ± 3.05	−0.36 ± 3.14	0.848
Time effect 2, p-value	0.379	0.723
Post-hoc analysis	>0.370	1.0
PSQI d0	9.83 ± 2.90	9.91 ± 3.04	0.817
PSQI d7	9.24 ± 2.90	9.29 ± 3.43	0.863
PSQI d14	8.90 ± 2.61	9.51 ± 3.11	0.216
PSQI d21	9.36 ± 3.08	9.55 ± 3.02	0.717
Time effect 2, p-value	0.072	0.389
Post-hoc analysis	>0.068	>0.321
PP
Change d0–d7	−0.63 ± 3.32	−0.55 ± 2.49	0.841
Change d0–d14	−0.92 ± 2.93	−0.22 ± 3.24	0.325
Change d0–d21	−0.50 ± 3.01	−020 ± 2.99	0.848
Time effect 2, p-value	0.429	0.574
Post-hoc analysis	>0.487	>0.992
PSQI d0	9.84 ± 3.00	9.89 ± 2.92	0.864
PSQI d7	9.37 ± 2.89	9.34 ± 3.38	0.920
PSQI d14	8.92 ± 2.67	9.67 ± 3.13	0.216
PSQI d21	9.34 ± 3.01	9.69 ± 3.06	0.717
Time effect 2, p-value	0.101	0.511
Post-hoc analysis	>0.117	>0.501
ModPP
Change d0–d7	−0.91 ± 3.10	−066 ± 2.60	0.673
Change d0–d14	−1.60 ± 2.53	−0.30 ±3.28	0.034
Change d0–d21	−1.17 ± 2.76	0.43 ± 3.17	0.227
Time effect 2, p-value	0.228	0.682
Post-hoc analysis	>0.448	1.0
PSQI d0	10.85 ± 2.55	10.57 ± 2.68	0.609
PSQI d7	9.87 ± 2.97	9.91 ± 3.28	0.944
PSQI d14	9.26 ± 2.83	10.28 ± 2.85	0.085
PSQI d21	9.68 ± 3.07	10.15 ± 3.25	0.474
Time effect 2, p-value	0.001	0.487
Post-hoc analysis	0–14 d: 0.001 0–21 d: 0.055	>0.531

Data are presented as mean ± SD. DP: dairy-based test product. Placebo: skimmed milk. ModPP: modified PP population. ¹ Independent Samples Test. ² One-way repeated measures ANOVA with Bonferroni post-hoc analysis.