Evidence map›Paper›PMID 36519396›Full record

SynthesisOrthopaedic surgery2023

What are Risk Factors of Postoperative Pneumonia in Geriatric Individuals after Hip Fracture Surgery: A Systematic Review and Meta-Analysis.

Yu-Cheng Gao, Yuan-Wei Zhang, Liu Shi, Wang Gao, Ying-Juan Li, Hui Chen, Yun-Feng Rui

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Orthopaedic surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
10.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Early complications after surgery for periprosthetic femoral fractures: incidence, risk factors, and clinical implications.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Challenges and opportunities in the management of severe pneumonia. Key concepts from the Seventh Annual Meeting of Spanish Experts 2025.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2026
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Yu-Cheng GaoDepartment of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.ORCID https://orcid.org/0000-0002-0337-9285
Yuan-Wei ZhangDepartment of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
Liu ShiDepartment of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
Wang GaoDepartment of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
Ying-Juan LiMultidisciplinary Team (MDT) for Geriatric Hip Fracture Management, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
Hui ChenDepartment of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
Yun-Feng RuiDepartment of Orthopaedics, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China.
Zhongda Hospital Southeast University · CN

Funding

Winfast Charity Foundation YL20220525
6 · The paper itself

Abstract

Postoperative pneumonia (POP) is a common postoperative complication. Negative consequences associated with POP included prolonged hospital length of stay, more frequent intensive care unit (ICU) stays, and a higher rate of sepsis, readmission, and mortality. This meta-analysis aimed to assess the incidence and risk factors associated with POP after hip fracture surgery in elderly patients. PubMed, Web of Science, and Cochrane Library were searched (up to March 31, 2022). All studies on the risk factors for POP after hip fracture surgery in elderly patients, published in English, were reviewed. The qualities of the included studies were assessed using the Newcastle-Ottawa Scale. Data were pooled, and a meta-analysis was performed. Ten studies, including 12,084 geriatric patients undergoing hip fracture surgery, were included. Of these 12,084 patients, POP occurred in 809 patients. The results indicated that age (mean difference [MD] = 4.95, 95% confidence interval [CI]: 3.22-6.69), male (odds ratio [OR] = 1.41, 95% CI: 1.02-1.93), the American Society of Anaesthesiologists classification ≥3 (OR = 3.48, 95% CI: 1.87-6.47), dependent functional status (OR = 5.23, 95% CI: 2.18-12.54, P = 0.0002), smoking (OR = 1.33, 95% CI: 1.07-1.65), chronic obstructive pulmonary disease (OR = 3.76, 95% CI: 2.07-6.81), diabetes mellitus (OR = 1.19, 95% CI: 1.01-1.40), coronary heart disease (OR = 1.74, 95% CI: 1.23-2.46), arrhythmia (OR = 1.47, 95% CI: 1.01-2.14), cerebrovascular disease (OR = 1.88, 95% CI: 1.56-2.27), dementia (OR = 2.36, 95% CI: 1.04-5.36), chronic renal failure (OR = 1.85, 95% CI: 1.29-2.67), hip arthroplasty (OR = 1.30, 95% CI: 1.08-1.56), delayed surgery (OR = 6.40, 95% CI: 3.00-13.68), preoperative creatinine (MD = 5.32, 95% CI: 0.55-10.08), and preoperative serum albumin (MD = -3.01, 95% CI: -4.21 - -1.80) were risk factors for POP. Related prophylactic measures should be provided in geriatric patients with the above-mentioned risk factors to prevent POP after hip fracture surgery.

Indexed as

Hip FracturesPneumoniaAgedHumansMalePostoperative ComplicationsRisk FactorsElderlyHip FractureIncidencePostoperative PneumoniaRisk Factors

Identifiers

PMID36519396
PMCPMC9837248
OpenAlexW4311516831

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.