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The correlation of duration of cervical flexion per day with neck disability index scores in office workers: a cross sectional study
Fang Yunyun
Jiangning Hospital of Nanjing Medical University
Corresponding Author
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Background: An increasing number of office workers complain of neck pain after extended smart phone use. We conducted this study to examine the correlation between the duration of cervical flexion per day (DCF) during smart phone use and neck disability index scores (NDI) scores of office workers in China.
Methods: In this cross-sectional study, 1791 individuals responded to an on line questionnaire. For our study, we included responses of 498 [27.8%] office workers. Excluded from the study were 1293 [72.9%] individuals including building workers, students, non-office workers, and those who did not complete the questionnaire. Participants completed an online questionnaire survey from May 29, 2019 to April 10, 2020. The NDI scores were used to evaluate cervical symptoms. Liner regression, threshold saturation effect analysis, t-test, and Pearson’s chi-square tests were used to analyze the data.
Results: We analyzed questionnaire results of the 498 office workers. The t-test showed no significant differences among the gender groups for age, working age, and NDI scores (P>0.05).] while low back pain had a strong correlation with NDI scores [β (95%CI):2.40 (1.49, 3.31), P <0.0001]. When adjusting for age, working age, and low back pain covariates, DCF had a positive correlation with NDI scores. In addition, DCF had a curve line correlation with NDI scores-a monotone increasing relationship; the fold point was 6 (P<0.05).
Conclusions: DCF had a positive curve line correlation with the NDI scores suggesting that office workers should limit DCF to a maximum of 6 hours to decrease NDI scores.
Keywords
DCF, office workers, cervical spondylosis, NDI, USP
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On 02 Dec, 2020
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Reviewers invited
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On 22 Oct, 2020
Reviewer #2 agreed
On 22 Oct, 2020
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Received 22 Oct, 2020
Review #2 received
Received 21 Oct, 2020
Editor assigned
On 12 Oct, 2020
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Editorial decision: Major revision
On 14 Sep, 2020
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Received 13 Sep, 2020
Review #2 received
Received 13 Sep, 2020
Reviewer #3 agreed
On 05 Sep, 2020
Reviewer #2 agreed
On 03 Sep, 2020
Reviewer #1 agreed
On 26 Aug, 2020
Reviewers invited
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Editor assigned
On 29 Jul, 2020
Submission checks complete
On 28 Jul, 2020
Editor invited
On 28 Jul, 2020
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Orthopedics
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This preprint is under consideration at BMC Musculoskeletal Disorders. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
The correlation of duration of cervical flexion per day with neck disability index scores in office workers: a cross sectional study
Fang Yunyun
Jiangning Hospital of Nanjing Medical University
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 3
Posted 28 Dec, 2020
No community comments so far
Editor assigned
On 09 Dec, 2020
Submission checks complete
On 09 Dec, 2020
Editor invited
On 09 Dec, 2020
No comments provided
Review #3 received
Received 02 Dec, 2020
Editorial decision: Minor revision
On 02 Dec, 2020
Reviewer #3 agreed
On 29 Nov, 2020
Reviewers invited
Invitations sent on 22 Oct, 2020
Reviewer #1 agreed
On 22 Oct, 2020
Reviewer #2 agreed
On 22 Oct, 2020
Review #1 received
Received 22 Oct, 2020
Review #2 received
Received 21 Oct, 2020
Editor assigned
On 12 Oct, 2020
Submission checks complete
On 11 Oct, 2020
Editor invited
On 11 Oct, 2020
No comments provided
Editorial decision: Major revision
On 14 Sep, 2020
Review #1 received
Received 13 Sep, 2020
Review #2 received
Received 13 Sep, 2020
Reviewer #3 agreed
On 05 Sep, 2020
Reviewer #2 agreed
On 03 Sep, 2020
Reviewer #1 agreed
On 26 Aug, 2020
Reviewers invited
Invitations sent on 18 Aug, 2020
Editor assigned
On 29 Jul, 2020
Submission checks complete
On 28 Jul, 2020
Editor invited
On 28 Jul, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedics
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: An increasing number of office workers complain of neck pain after extended smart phone use. We conducted this study to examine the correlation between the duration of cervical flexion per day (DCF) during smart phone use and neck disability index scores (NDI) scores of office workers in China.
Methods: In this cross-sectional study, 1791 individuals responded to an on line questionnaire. For our study, we included responses of 498 [27.8%] office workers. Excluded from the study were 1293 [72.9%] individuals including building workers, students, non-office workers, and those who did not complete the questionnaire. Participants completed an online questionnaire survey from May 29, 2019 to April 10, 2020. The NDI scores were used to evaluate cervical symptoms. Liner regression, threshold saturation effect analysis, t-test, and Pearson’s chi-square tests were used to analyze the data.
Results: We analyzed questionnaire results of the 498 office workers. The t-test showed no significant differences among the gender groups for age, working age, and NDI scores (P>0.05).] while low back pain had a strong correlation with NDI scores [β (95%CI):2.40 (1.49, 3.31), P <0.0001]. When adjusting for age, working age, and low back pain covariates, DCF had a positive correlation with NDI scores. In addition, DCF had a curve line correlation with NDI scores-a monotone increasing relationship; the fold point was 6 (P<0.05).
Conclusions: DCF had a positive curve line correlation with the NDI scores suggesting that office workers should limit DCF to a maximum of 6 hours to decrease NDI scores.
Figure 1
Figure 2