Table 3.
Duration of primary admission and hospital care costs for cases of invasive GAS infection which died in hospital, England 2008–2010
| Costing group | n* | Cases who died in hospital (%) | Median duration of primary admission in days (IQR) | Median hospital care (HRG4) costs (IQR) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Non-fatal cases | Fatal cases | Comparison† | Non-fatal cases | Fatal cases | Comparison† | |||||
| Z score | P value | Z score | P value | |||||||
| I | 1173 | 219 (18·7) | 10 (5–18) | 2 (1–6) | 13·04 | <0·0001 | 1729 (1324–3128) | 1707 (1324–1707) | 5·06 | <0·0001 |
| II | 346 | 19 (5·5) | 5 (2–11) | 0 (0–3) | 5·02 | <0·0001 | 1425 (842–2597) | 1324 (751–1707) | 1·55 | 0·0123 |
| III | 532 | 83 (15·6) | 18 (9–33) | 2 (1–14) | 8·28 | <0·0001 | 3359 (1836–5940) | 1999 (1092–3906) | 3·72 | 0·0002 |
| IV | 941 | 161 (17·1) | 8 (3–16) | 1 (1–6) | 8·70 | <0·0001 | 2051 (1076–3568) | 1921 (1130–2900) | 0·47 | 0·6400 |
| All primary admissions | 2992 | 482 (16·1) | 10 (1–19) | 2 (1–7) | 17·60 | <0·0001 | 1944 (1175–3666) | 1707 (1324–2294) | 4·42 | <0·0001 |
HRG4, Healthcare resource group, version 4; IQR, interquartile range.
*
Cases included from the full dataset (n = 3696) were those with a linked primary hospital admission (n = 3400) after removal of nosocomial cases (n = 403) and/or those that could not be costed (n = 17, of which 12 were also nosocomial cases).
†
Mann–Whitney U test.