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Pooled review (meta-analysis)

Pooled review of 7 long-term studies: more steps linked to steadily lower death risk

Jayedi and colleagues · Sports medicine (Auckland, N.Z.) · 2022

Original title: Daily Step Count and All-Cause Mortality: A Dose-Response Meta-analysis of Prospective Cohort Studies.

Under review. A person has not yet checked this summary against the paper. It is written from the PubMed abstract. Until a person checks it, search engines are asked not to list this page.

What the study found

Points to benefit

Each 1000 steps a day had HR 0.88 for death. Risk fell in a straight line from 2700 to 17,000 steps a day; HR for 10,000 steps was 0.44.

The study at a glance

Type of study
Pooled review (meta-analysis)
Who or what was studied
7 studies · General population adults from 7 long-term studies
What was tested
Pooled studies of daily steps and death from any cause
What it measured
The question itself: death from any cause
Who has a stake
No disclosure in PubMed
No disclosure in PubMed.
Journal
Sports medicine (Auckland, N.Z.), 2022
Source
PubMed record 34417979. This page is based on the abstract only.

How much this study counts

  • ✓Pools the results of 7 studies.
  • •A pooled review is only as strong as the studies it pools.
  • ✓Measured the question itself: death from any cause.
  • •The PubMed record has no conflict-of-interest statement.
  • •Summarized from the PubMed abstract only. The full paper may hold details the abstract leaves out.

✓ Strength– Limit• Note

These points come from fixed rules about the type of study, its size and length, what it measured, and who has a stake. Every study on Digestery gets the same rules.

Where this study sits

This paper is not on the ladder. It is a pooled review (meta-analysis), and reviews and opinion pieces discuss studies that are already counted on the steps below.

↑ Stronger evidence

  1. Trials in people: death from any cause

    0

    Not done yet. This is the step that would answer the question.

  2. Trials in people: other measures

    0

    None among the papers we read.

  3. Trials in people: lab tests or safety

    0

    None among the papers we read.

  4. Population studies

    10

    9 benefit, 1 no difference

  5. Blood levels and genes

    0

    None among the papers we read.

↓ Weaker evidence

  • Points to benefit
  • Mixed
  • No difference
  • No direction
  • Points to harm

How it fits with the other research

The short answer to “How many steps a day lower the risk of early death?”

About 6,000 to 10,000 steps; fewer if older.

Confidence: low. Based on 17 on-topic papers.

Read the full answer

Other reviews on this question

See all 17 studies on this question

How this page was made

Label

First read of the abstract
Claude Sonnet
Independent second read
Claude Haiku
Differences settled
The two reads agreed on every checked field. Claude Opus 5.5.
Headline
Claude Sonnet, from the checked study record. A script checked its numbers and wording.
Numbers
Checked against the abstract by a script
“How much this study counts”
Fixed rules, the same for every study
Source check by a person
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