TABLE 1.

Demographic and clinical data on patients with Staphylococcus aureus bloodstream infections (SABSI) and control subjects

Characteristic	SABSI	Controls	P value
n	49	43
Age (median, yr) (range)	67 (28–95)	68 (23–87)	0.854 (Mann-Whitney U test)
Male gender (no.)	33	27	0.647 (Pearson chi-square test)
Severity of SABSI (no.)
Sepsis	42
Severe sepsis	7
Septic shock	0
30-day all-cause case fatality (no.)	7
Diabetes (no.)	13	6	0.137 (Pearson chi-square test)
S. aureus nasal carrier (no.)	15	12	0.776 (Pearson chi-square test)
Time point collection of sera (no.)
Within 24 h	30
Within 48 h	14
Within 72 h	5
P-albumina (median, g/liter, reference range of 36–45 g/liter) (range)	33 (20–44)	44 (33–54)	<0.001 (Mann-Whitney U test)
CRP (mg/liter, reference range of <5 mg/liter) (range)	195 (10–500)b	3 (3–31)	<0.001 (Mann-Whitney U test)
Total IgG (median, g/liter) (range)	9.9 (3.8–18.7)	9.9 (5.3–18.4)	0.959 (Mann-Whitney U test)

^aNot tested in two patients and one control.

^bNot tested in one patient.