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Table 2 Characteristics of patients with IPD grouped according to invasive potential of the infecting pneumococcal serotype

From: High incidence of septic shock caused by Streptococcus pneumoniae serotype 3 - a retrospective epidemiological study

Invasive disease potentialª (no) Septic shock (%) 28 day mortality (%) Admitted to the ICU (%) Any co-morbidity (%) Two or more co-morbidities per patient (%) Median age (years; range)
High b ( n = 85) 7 (8%) 6 (7%) 12 (14%) 41 (48%) 19 (22%) 62 (19–95)
Intermediate c ( n = 192) 18 (9%) 25 (13%) 29 (15%) 117 (61%) 52 (27%) 68 (20–97)
Low d ( n = 169) 17 (10%) 24 (14%) 24 (14%) 133 (79%) 74 (44%) 72 (23–101)
p -value e p=0.911 p=0.293 p=0.984 p <0.001 p <0.001 p <0.001
  1. ªSerogroups divided into groups depending of invasive potential according to Brueggeman et al.[3]. Sixty-seven IPD cases were excluded since the serotype was not included in this classification.
  2. bHigh invasive disease potential includes serotypes in serogroups 1, 5, and 7.
  3. cIntermediate invasive disease potential includes serotypes in serogroups 4, 9, 14 and 18.
  4. dLow invasive disease potential includes serotypes in serogroups 3, 6, 8, 15, 19, 23, and 33.
  5. eUnivariate p-value for differences among the groups (high, intermediate and low invasive potential).