Table 2.

Potential Risk Factors for Developing a Periprosthetic Joint Infection During Bacteremia

	Joints With PJI (n = 47)		Joints Without PJI (n = 672)
Risk Factor	No.	%	No.	%	Odds Ratio	95% Confidence Interval
No. of bacteremias ≥2	13	28	96	14	2.29	1.17–4.50
BMI ≥25 kg/m2	38	81	473	70	1.82	0.70–4.72
Chronic lung disease	3	6	33	5	1.32	0.39–4.48
Chronic heart disease	6	13	72	11	1.22	0.50–2.97
Male gender	21	45	276	41	1.16	0.64–2.10
Knee joint	29	62	398	59	1.11	0.60–2.04
Time since previous joint replacement, ya
<1	17	36	94	12	1.00
1–10	28	60	672	85	0.23	0.12–0.44
>10	2	4	24	3	0.46	0.10–2.13
Age at the time of bacteremia, mean (SD),a y	71	(11)	76	(10)	0.97	0.94–0.99
Rheumatic disease	3	6	59	9	0.71	0.21–2.35
Diabetes	5	11	103	15	0.66	0.25–1.70
Primary osteoarthritis as indication for primary joint replacement	43	92	588	88	0.65	0.23–1.86
Use of antibiotic-loaded cement in the primary operation	35	74	555	83	0.59	0.30–1.17

Abbreviations: BMI, body mass index; PJI, periprosthetic joint infection.

^aCalculated for each bacteremia and joint (n = 837) separately.