Observational studies and randomized trials.

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

1. [Effectiveness of liberal vs. conservative episiotomy in vaginal delivery with reference to preventing urinary and fecal incontinence: a systematic review].Wiener medizinische Wochenschrift (1946) · 2003
   Pooled it
2. Prone positioning in acute respiratory distress syndrome during venovenous extracorporeal membrane oxygenation.Critical care (London, England) · 2021
   Article
3. Personalizing Behavioral Interventions Through Single-Patient (N-of-1) Trials.Social and personality psychology compass · 2014
   Article
4. Is it more effective for highly trained swimmers to live and train at 1200 m than at 1850 m in terms of performance and haematological benefits?British journal of sports medicine · 2006
   Article

Corrections and comments

• Comment on
  A comparison of observational studies and randomized, controlled trials.2000
• Comment on
  Randomized, controlled trials, observational studies, and the hierarchy of research designs.2000

Authors and funding

3 authors.

Funding

No grant is acknowledged in the PubMed record.

Abstract

PubMed holds no abstract for this paper.

Indexed as