Native and prosthetic septic arthritis in a university hospital in Saudi Arabia: A retrospective study

Table 4 Risk factors/comorbidities

Risk factors/comorbidities present	All cases		Native		Prosthetic		Odds ratio	P value
	N	%	N	%	N	%
Complicated by osteomyelitis	11	21.2	9	27.3	2	10.5	0.314	0.154
Associated with necrotizing fasciitis	7	13.5	2	6.1	5	26.3	0.536	0.039
DM	36	69.2	22	66.7	14	73.7	1.400	0.598
HTN	29	55.8	19	57.6	10	52.6	0.819	0.730
Renal impairment	23	44.2	20	60.6	3	15.8	0.122	0.002
Hemodialysis	15	28.8	14	42.4	1	5.3	0.075	0.004
Heart disease	13	25.0	12	36.4	1	5.3	0.097	0.013
CVD	5	9.6	3	9.1	2	10.5	1.176	0.866
CLD	6	11.5	6	18.2	0	0	0.587	0.048
Malignancy	4	7.7	2	6.1	2	10.5	1.824	0.561
Hematological malignancy	1	1.9	1	3.0	0	0	0.627	0.444
Solid organ malignancy	4	7.7	2	6.1	2	10.5	0.339	0.561
Surgery within 90 days before Dx	5	9.6	2	6.1	2	10.5	2.906	0.252
Osteoarthritis	12	23.1	4	12.1	3	15.8	5.273	0.013
Rheumatoid arthritis	2	3.8	0	0.0	2	10.5	0.340	0.057
Psoriasis	1	1.9	1	3.0	0	0	0.627	0.444
Sickler	1	1.9	1	3.0	0	0	0.627	0.444
Other rheumatological disease	1	1.9	1	3.0	0	0	0.627	0.444
Past septic arthritis	1	1.9	0	0	1	3.0	0.353	0.183
Hx of trauma	9	17.3	4	12.1	5	26.3	2.589	0.181

None of the cases had lung disease or immunosuppressive therapy. DM: Diabetes mellitus; HTN: Hypertension; CVD: Cardiovascular disease; CLD: Chronic liver disease; Dx: Discharge; Hx: History.