Table Info

Table 3.

Comparison of epidemiologic and clinical characteristics of PDB and PsA

Characteristics	PsA	PDB
Age of onset, years	> 45	> 50
Gender	F = M	F = M
Familial history	Positive	Positive
Vascular calcification	Is present	Is present
Involvement of weight—bearing bony architecture	Lower extremity enthesitis (obesity)	Lower-extremities (long-bones)
	Pelvis	Pelvis
	Axial spondylitis	Axial skeleton
Bone ALP	↑↑	↑↑
CD association	Yes	Possibly
OCLs morphology	Hypermultinucleated	Hypermultinucleated
Oxidative stress	↑	↑
Tissue vascularity	↑↑	↑↑
Pattern of bone involvement	Asymmetric	Asymmetric
Pattern of bone involvement	Skipping non-marginal- syndesmophytes	Not crossing bone boundaries
Deep Koebner phenomenon	Confirmed	?
Daily trauma-related sites	DIP joints Ray distribution Dominant-hand thumbnail Obesity	Skull
Environmental factors	Streptococcus/Drugs/Stress	Measles virus
Prevalence	Increased	Decreased

F: female; M: male; ↑: elevated; ↑↑: significantly elevated; ?: undetermined

Declarations

Acknowledgments

I would like to express my gratitude to my wife, Mrs. Dr. Batool Dadkhah for her intellectual assistances.

Author contributions

FS: Conceptualization, Investigation, Writing—original draft, Writing—review & editing. The author read and approved the submitted version.

Conflicts of interest

The author declares that there is no conflicts of interest.

Ethical approval

Not applicable.

Consent to participate

Not applicable.

Consent to publication

Not applicable.

Availability of data and materials

All required data are included in the manuscript.

Funding

Not applicable.

Copyright

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