Self-reported hard physical work combined with heavy smoking or overweight may result in so-called Modic changes
2008

Impact of Hard Physical Work and Smoking on Spinal Health

Sample size: 412 publication 10 minutes Evidence: moderate

Author Information

Author(s): Leboeuf-Yde Charlotte, Kjær Per, Bendix Tom, Manniche Claus

Primary Institution: The Back Research Center, University of Southern Denmark

Hypothesis

Heavy smoking in combination with macro- or repeated microtrauma could lead to vertebral inflammatory process (VIP).

Conclusion

Hard physical work in combination with either heavy smoking or overweight is strongly associated with VIP.

Supporting Evidence

  • VIP was found in 15% of non-smokers vs. 26% of heavy smokers.
  • VIP was noted in 11% of those in sedentary jobs vs. 31% of those with hard physical work.
  • The odds ratio was 4.9 for those who were both heavy smokers and had a hard physical job.
  • Hard physical work combined with heavy smoking showed a strong association with VIP.

Takeaway

If you work really hard and smoke a lot, your back might hurt more because of a condition called VIP.

Methodology

Secondary analysis of a population-based cross-sectional study using questionnaires and MRI.

Potential Biases

Self-reported smoking and BMI may not accurately reflect true habits and conditions.

Limitations

The study relied on self-reported data, which may introduce bias, and the sample was limited to 40-year-olds.

Participant Demographics

The study sample consisted of 412 persons, all aged 40, with 52% being women.

Statistical Information

P-Value

0.004

Confidence Interval

1.6–13.0

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2474-9-5

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