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Table 2 Demographic and clinical characteristics of patients with BSIs

From: Epidemiology and microbiology of Gram-positive bloodstream infections in a tertiary-care hospital in Beijing, China: a 6-year retrospective study

  Staphylococcus aureus(n = 227) CoNS(N = 446) enterococcus(n = 499) Viri-dans streptococcus(n = 148) Streptococcus pneumonia(n = 10) total(n = 1330) p-value
age 51(50–57) 53(51–55) 59(58–61) 52(50–54) 51(42–53) 53(51–55) p < 0.001
Male 152(66,64–69) 284(64,58–69) 320(64,60–67) 108(73,71–74) 6(60,59–60) 870(65,48–81) 0.857
Female 75(34,30–35) 162(36,30–41) 179(36,32–39) 40(27,25–28) 4(40,39–40) 460(35,18–51) 0.455
Comorbidities
 Malignancy 68(30,27–32) 83(19,13–24) 175(35,31–38) 38(26,24–27) 6(60,59–60) 370(28,11–44) p < 0.001
 Trauma 15(7,4–9) 18(4,0–9) 20(4,0–7) 3(2,0–3) 1(10,9–10) 57(4,0–20) 0.408
 Hypertension 35(15,12–17) 74(17,11–22) 69(14,10–17) 23(16,14–17) 2(20,19–20) 203(15,0–31) 0.994
 Heart disease 15(7,4–9) 69(15,9–20) 38(8,4–11) 10(7,5–8) 1(10,9–10) 133(10,0–26) 0.007
 Diabetes mellitus 25(11,8–13) 45(10,4–15) 54(11,7–14) 9(6,4–7) 3(30,29–30) 136(10,0–26) 0.007
 Hematological disease 21(9,6–11) 12(3,0–8) 15(3,0–6) 8(5,3–6) 1(10,9–10) 57(4,0–20) 0.006
Hospital Ward
 Medical 117(52,49–54) 315(71,65–76) 305(61,56–63) 97(66,64–67) 10(100,99–100) 844(63,46–79) 0.219
 Surgical 110(48,45–50) 131(29,23–34) 194(39,35–42) 51(34,32–35) 0(0,0–0) 486(37,20–53) 0.003
 ICU 50(22,19–24) 122(27,21–32) 132(26,22–29) 28(19,17–20) 0(0,0–0) 332(25,9–41) 0.145
Predisposing factors
 central intravenous catheter 62(27,24–29) 42(9,3–14) 37(38,37–39) 4(3,1–4) 1(10,9–10) 146(11,0–27) p < 0.001
 indwelling urinary catheter 26(11,8–130 11(2,0–7) 18(18,17–19) 1(1,0–2) 0(0,0–0) 56(4,0–20) p < 0.001
 Immunosuppressive 22(10,7–12) 8(2,0–7) 8(8,7–9) 3(2,0–3) 2(20,19–20) 43(3,0–19) p < 0.001
 chemoradiotherapy 41(18,15–20) 21(5,0–10) 15(15,14–16) 4(3,1–4) 1(10,9–10) 82(6,0–22) p < 0.001
 endotracheal intubation 12(5,2–7) 11(2,0–7) 14(14,13–15) 1(1,0–2) 0(0,0–0) 38(3,0–19) 0.195
 tracheostomy tube 6(3,0–5) 3(1,0–6) 6(6,5–7) 0(0,0–1) 0(0,0–0) 15(1,0–17) 0.211
Significant isolates
 Nosocomial 164(72,69–74) 312(70,64–75) 400(80,72–85) 50(34,32–35) 5(50,49–50) 931(70,53–86) p < 0.001
 Community acquired 63(28,25–30) 134(30,24–35) 99(20,31–38) 98(66,64–67) 5(50,49–50) 399(30,13–46) p < 0.001