Hospital-Related Lineage of USA300 Methicillin-Resistant Staphylococcus aureus (MRSA) to Cause Bacteremia in Iran

Table 1

Demographics and clinical characteristics of patients with S. aureus bacteremia.

Study variables	Frequency	Percent (%)
Gender
Male	28	32.9
Female	57	67.1
Age category (in years)
≤20	8	9.4
21-30	11	12.9
31-40	12	14.1
41-50	32	37.7
51-60	12	14.1
≥61 years	10	11.8
Ward type
Infectious	23	27.1
ICU	20	23.5
Oncology	15	17.6
Surgery	14	16.5
Internal	13	15.3
Risk factors
Previous antibiotic therapy in the last 3 months	53	62.4
History of hospitalization in the last year	36	42.4
History of surgery in the last 6 months	22	25.9
Diabetes mellitus	27	31.8
Hypertension	55	64.7