Evidence map›Paper›PMID 31615561›Full record

ArticleJournal of orthopaedic surgery and research2019

Cervical kyphosis in asymptomatic populations: incidence, risk factors, and its relationship with health-related quality of life.

Shuang Ao, Yu Liu, Yu Wang, Hao Zhang, Hui Leng

Open access · goldAbstract read
In one paragraph

Article in Journal of orthopaedic surgery and research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 26 citations in OpenAlex.

  1. What factors predict cervical sagittal alignment restoration after correction of thoracic adolescent idiopathic scoliosis with severe thoracic hypokyphosis? A multicenter retrospective study of 57 patients.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025
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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

5 authors at 1 institution in 1 country.

Shuang AoDepartment of Spinal Surgery, Chifeng Municipal Hospital, Chifeng, Inner Mongolia, China.
Yu LiuDepartment of Spinal Surgery, Chifeng Municipal Hospital, Chifeng, Inner Mongolia, China.
Yu WangDepartment of Spinal Surgery, Chifeng Municipal Hospital, Chifeng, Inner Mongolia, China.
Hao ZhangDepartment of Spinal Surgery, Chifeng Municipal Hospital, Chifeng, Inner Mongolia, China.
Hui LengDepartment of Spinal Surgery, Chifeng Municipal Hospital, Chifeng, Inner Mongolia, China. aosuan123@163.com.
Chifeng Municipal Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCervical kyphosis has been pointed out in asymptomatic populations. The purposes of this study were (1) to investigate the incidence of cervical kyphosis in asymptomatic populations, (2) to identify risk factors related to cervical kyphosis, and (3) to assess the relationship between cervical kyphosis and health-related quality of life (HRQOL).

methodsA cohort of 235 asymptomatic volunteers' records was retrospectively analyzed. Radiographic parameters of the coronal and sagittal planes were measured in the full-length spine x-ray. All patients were classified into two groups based on the cervical lordosis angle: cervical lordosis (CL) and cervical kyphosis (CK). HRQOL was evaluated by EQ-5D and SF-36 (PCS and MCS) questionnaires.

resultsCK was observed in 90 of 235 (38.3%) participants. There was a significant difference with regard to age between volunteers with CK and CL (32.23 ± 8.12 vs. 42.12 ± 6.14, p < 0.05). Several parameters had a significant relationship with CK, including TK, T1 slope, TIA, SVA, and CT. Logistic regression analysis identified age, TK, T1 slope, and SVA as independent risk factors of CK. In addition, there was a negative correlation between CK and the parameters of HRQOL (EQ-5D, - 0.63; PCS, - 0.68; MCS, - 0.59).

conclusionsThe incidence of CK in normal populations is 38.3%. Some spinal parameters are related to CK. CK is associated with the HRQOL.

Indexed as

Cervical VertebraeAdultChinaFemaleHealthy VolunteersHumansIncidenceKyphosisMaleMiddle AgedQuality of LifeRetrospective StudiesRisk FactorsYoung AdultAsymptomatic populationsCervical kyphosisHealth-related quality of lifeIncidenceRisk factorT1 slopeThoracic kyphosis

Identifiers

PMID31615561
PMCPMC6794725
OpenAlexW2980323828

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Registered trials

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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.