Cochrane · systematic review · CD010641
Person‐directed, non‐pharmacological interventions for sleepiness at work and sleep disturbances caused by shift work
Slanger, TE, Gross, JV, Pinger, A, et al. · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library
WorkAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
30
current version
GRADE rated
30
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 13 · 43.3%Low 16 · 53.3%Moderate 1 · 3.3%High 0 · 0%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
Questions and results
Light interventions (1/7): Bright light at night versus normal light (300 lux)
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the night shift overall; Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 2 studies · 184 participants | Very low Downgraded: risk of bias, imprecision, inconsistency |
Sleepiness during the night shift overall; Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 1 study · 16 participants | Low Downgraded: risk of bias, imprecision |
Sleepiness during the night shift; postintervention measurement Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 1 study · 90 participants | Low Downgraded: risk of bias, imprecision |
Sleepiness during the night shift; postintervention measurement Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 1 study · 16 participants | Low Downgraded: risk of bias, imprecision |
Total sleep time, next day ‐ main sleep time only; Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 1 study · 15 participants | Low Downgraded: risk of bias, imprecision |
Total sleep time, next day ‐ 24‐hr sleep time, including naps; Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 1 study · 15 participants | Low Downgraded: risk of bias, imprecision |
Sleep efficiency, next day; Light interventions (1/7): Bright light at night vs normal light (300 lux) | no estimate extracted | 1 study · 15 participants | Low Downgraded: risk of bias, imprecision |
Light interventions (2/7): Bright light alone at night versus normal light (300 lux) plus placebo capsule
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the night shift; Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 14 participants | Very low Downgraded: imprecision, indirectness |
Total sleep time, next day; Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 15 participants | Very low Downgraded: imprecision, indirectness |
Sleep onset latency, next day; Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 15 participants | Very low Downgraded: imprecision, indirectness |
Sleep efficiency, next day; Light interventions (2/7): Bright light alone at night vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 15 participants | Very low Downgraded: imprecision, indirectness |
Light intervention (3/7): Bright light during day versus normal light (530 to 648 lux)
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the day shift Light intervention (3/7): Bright light during day vs normal light (530 to 648 lux) | no estimate extracted | 1 study · 61 participants | Low Downgraded: risk of bias, imprecision |
Sleep quality, next night; Light intervention (3/7): Bright light during day vs normal light (530 to 648 lux) | no estimate extracted | 1 study · 61 participants | Low Downgraded: risk of bias, imprecision |
Light interventions (4/7): Bright light during day versus dim red light
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Total sleep time, next night; Light interventions (4/7): Bright light during day vs dim red light | no estimate extracted | 1 study · 16 participants | Low Downgraded: risk of bias, imprecision |
Sleep onset latency, next night Light interventions (4/7): Bright light during day vs dim red light | no estimate extracted | 1 study · 16 participants | Low Downgraded: risk of bias, imprecision |
Light interventions (5/7): Bright light alone during day versus normal light (300 lux) plus placebo capsule
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the day shift; days Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 12 participants | Very low Downgraded: imprecision, indirectness |
Total sleep time, next night; Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 13 participants | Very low Downgraded: imprecision, indirectness |
Sleep onset latency, next night; Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 13 participants | Very low Downgraded: imprecision, indirectness |
Sleep efficiency, next night; Light interventions (5/7): Bright light alone during day vs normal light (300 lux) plus placebo capsule | no estimate extracted | 1 study · 13 participants | Very low Downgraded: imprecision, indirectness |
Light interventions (6/7): Bright light at night plus glasses versus normal light (unclear lux) and no glasses
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the night shift Light interventions (6/7): Bright light at night plus glasses vs normal light (unclear lux) and no glasses | no estimate extracted | 1 study · 17 participants | Very low Downgraded: risk of bias, imprecision, indirectness |
Light interventions (7/7): Bright light plus glasses during day versus normal light and no glasses
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Total sleep time, next night; Light interventions (7/7): Bright light plus glasses during day vs normal light and no glasses | no estimate extracted | 1 study · 3 participants | Low Downgraded: risk of bias, imprecision |
Sleep onset latency, next night; Light interventions (7/7): Bright light plus glasses during day vs normal light and no glasses | no estimate extracted | 1 study · 3 participants | Low Downgraded: risk of bias, imprecision |
Sleep efficiency, next night; Light interventions (7/7): Bright light plus glasses during day vs normal light and no glasses | no estimate extracted | 1 study · 3 participants | Low Downgraded: risk of bias, imprecision |
Nap interventions (1/2): Nap at night (single nap opportunity) versus no‐nap
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the night shift, postintervention; Nap interventions (1/2): Nap at night (single nap opportunity) vs no‐nap | no estimate extracted | 2 studies · 16 participants | Very low Downgraded: imprecision, inconsistency, indirectness |
Sleepiness during the night shift, postintervention; Nap interventions (1/2): Nap at night (single nap opportunity) vs no‐nap | no estimate extracted | 1 study · 8 participants | Low Downgraded: imprecision |
Sleepiness during the night shift, postintervention; Nap interventions (1/2): Nap at night (single nap opportunity) vs no‐nap | no estimate extracted | 1 study · 49 participants | Low Downgraded: imprecision |
Sleepiness during the night shift, postintervention; Nap interventions (1/2): Nap at night (single nap opportunity) vs no‐nap | no estimate extracted | 1 study · 7 participants | Very low Downgraded: imprecision, indirectness |
Sleepiness during the night shift, postintervention; Nap interventions (1/2): Nap at night (single nap opportunity) vs no‐nap | no estimate extracted | 1 study · 9 participants | Very low Downgraded: imprecision |
Nap intervention (2/2): Nap at night (two‐nap opportunities) versus no‐nap
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleepiness during the night shift, postintervention; Nap intervention (2/2): Nap at night (two‐nap opportunities) vs no‐nap | no estimate extracted | 1 study · 15 participants | Low Downgraded: imprecision, indirectness |
Other interventions (1/1): Physical exercise and sleep hygiene education versus wait‐list for sleepiness and sleep disturbances caused by shift work
Population: Shift workers
| Outcome | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Sleep quality, postintervention, Other interventions (1/1): Physical exercise and sleep hygiene education vs wait‐list | no estimate extracted | 1 study · 32 participants | Moderate Downgraded: imprecision |