Findings

What do systematic reviews say?

251 questions · 277 findings · 23 reviews

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No studies found 64 · 23.1%GRADE not reported 13 · 4.7%Very low 131 · 47.3%Low 59 · 21.3%Moderate 7 · 2.5%High 3 · 1.1%

Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule

Sleep efficiency · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 15 participants
Very low

Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule

Sleepiness during the night shift, postintervention; · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 14 participants
Very low

Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule

Total sleep time, next day Diaries and actigraphy. Scale from: 120 to 600. · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 15 participants
Very low

Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule

Sleepiness during the day shift · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 12 participants
Very low

Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule

Total sleep time, next night; · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 13 participants
Very low

Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule

Sleep onset latency, next night; · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 13 participants
Very low

Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule

Sleep efficiency · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 13 participants
Very low

Light interventions (6/7): Bright light at night plus glasses vs normal light and no glasses

Sleepiness during the night shift, postintervention; · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 17 participants
Very low

Light interventions (7/7): Bright light plus glasses during day vs normal light and no glasses

Total sleep time, next night; · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 3 participants
Low

Light interventions (7/7): Bright light plus glasses during day vs normal light and no glasses

Sleep onset latency, next night; · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 3 participants
Low

Light interventions (7/7): Bright light plus glasses during day vs normal light and no glasses

Sleep efficiency · Shift workers

1 finding from 1 review

Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work 2016 · Cochrane Headline outcomes only
no estimate extracted
1 study · 3 participants
Low