Table 3 Subjective measures of sleep quality—daily sleep diary.

From: Bifidobacterium longum 1714 improves sleep quality and aspects of well-being in healthy adults: a randomized, double-blind, placebo-controlled clinical trial

 

B. longum 1714

Placebo

P-value

N

Mean ± SD

N

Mean ± SD

Waking refreshed

 Weeks 1–4

43

3.4 ± 0.5

44

3.3 ± 0.4

0.07

 Weeks 5–8

43

3.5 ± 0.5

44

3.4 ± 0.4

 

Number of awakenings

 Weeks 1–4

43

4.0 ± 0.4

44

3.9 ± 0.4

0.53

 Weeks 5–8

43

4.0 ± 0.5

44

4.0 ± 0.4

 

Sleep quality

 Weeks 1–4

43

3.6 ± 0.4

44

3.6 ± 0.4

0.15

 Weeks 5–8

43

3.8 ± 0.5

44

3.6 ± 0.4

 
  1. ITT population. SD Standard Deviation.
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