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Table 4 Mortality of bloodstream infection (BSI) stratified by sex in an area of Mid-Norway 2002–2013. Number of deaths and observed and standardized mortality rates, allover and in various subgroups, are shown

From: Burden of bloodstream infection in an area of Mid-Norway 2002-2013: a prospective population-based observational study

  Total Females Males
Group of BSI n Observed mortality ratea
(95% C.I.)
Age and sex standar-dized mortality rateb n Observed mortality ratea(95% CI) Age standar-dized ratec n Observed mortality ratea
(95% CI)
Age standar-dized rated
All BSIs 299 35 (31–39) 32 127 29 (24–35) 28 172 40 (35–47) 36
Place of acquisition
 CA-BSI 85 10 (8–12) 9 42 10 (7–13) 9 43 10 (7–14) 9
 HCA-BSI 163 19 (16–22) 18 65 15 (12–19) 14 98 23 (19–28) 22
 HA-BSI 51 6 (4–8) 6 20 5 (3–7) 4 31 7 (5–10) 7
Infection focus
 Urinary tract 63 7 (6–9) 7 31 7 (5–10) 7 32 8 (5–11) 7
 Lungs 75 9 (7–11) 8 25 6 (4–9) 6 50 12 (9–15) 11
 Biliary tract 15 2 (1–3) 1 4 1 (0–2) 0.4 11 3 (1–5) 2
 Gastrointestinal tract 16 2 (1–3) 2 8 2 (0–4) 2 8 2 (0–3) 2
 Skin or soft tissue 34 4 (3–6) 4 12 3 (1–5) 3 22 5 (3–8) 5
 Other 28 3 (2–5) 3 14 3 (2–5) 3 14 3 (2–5) 3
 Unknown 68 8 (6–10) 7 33 8 (5–11) 7 35 8 (6–11) 8
Microbe group
 Gram-negative BSI 128 15 (12–18) 14 64 15 (11–19) 14 64 15 (12–19) 14
 Gram-positive BSI 144 17 (14–20) 15 48 11 (8–15) 11 96 23 (18–27) 20
 Polymicrobial or fungal BSI 27 3 (2–5) 3 15 3 (2–6) 3 12 3 (1–5) 3
Microbes (the four most common)
Escherichia coli 59 7 (5–9) 6 28 6 (4–9) 6 31 7 (5–10) 6
Streptococcus pneumoniae 31 4 (2–5) 3 10 2 (1–4) 2 21 5 (3–8) 4
Staphylococcus aureus 60 7 (5–9) 6 25 6 (4–9) 5 35 8 (6–11) 7
Klebsiella spp. 20 2 (1–4) 2 12 3 (1–5) 2 8 2 (0.7–4) 2
  1. aDeaths within 30 days of BSI episodes per 100,000 person-years (totally 860,630 person-
  2. years in individuals ≥16 years, 426,517 in males, 434,113 in females)
  3. bmales and females standardized to the age distribution of the male and female population of Norway 2010, respectively
  4. cstandardized to the age distribution of females in Norway 2010
  5. dstandardized to the age distribution of males in Norway 2010