Table 2.
Rates, adjusted rate ratios and association of outcomes between the best and worst performers within hospital peer groups
| Hospital peer group | Hospital | HA-VTE | HA-VTE case fatality | Correlation coefficient | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | Lowest (IR) | Highest (IR) | IRR (95 % CI) | Lowest (%) | Highest (%) | IRR (95 % CI) | (95 % CI) | |||||||
| All admissions | ||||||||||||||
| Public hospitals | ||||||||||||||
| Principal referral (A1) | 17 | 11.0 | 22.9 | 2.09 | (2–2.19) | b | 7.7 % | 13.8 % | 1.93 | (1.64–2.27) | b | −0.38 | (-0.76–0.19) | |
| Major metro- & non-metropolitan (B) | 22 | 6.8 | 12.6 | 1.70 | (1.58–1.84) | b | 6.9 % | 15.0 % | 2.13 | (1.73–2.63) | b | −0.22 | (-0.59–0.22) | |
| District group 1 (C1) | 13 | 5.8 | 11.7 | 2.02 | (1.77–2.31) | b | 5.9 % | 20.5 % | 3.77 | (2.41–5.91) | b | −0.35 | (-0.76–0.25) | |
| District group 2 (C2) | 30 | 2.8 | 10.4 | 2.94 | (2.39–3.62) | b | 4.7 % | 14.7 % | 3.47 | (1.94–6.19) | b | 0.04 | (-0.33–0.39) | |
| Private hospitals | ||||||||||||||
| Major (21) | 10 | 4.0 | 24.7 | 5.33 | (4.62–6.16) | b | 1.4 % | 10.5 % | 6.23 | (4.25–9.13) | b | −0.63 | (-0.9–0.01) | a |
| District (22) | 12 | 6.0 | 14.3 | 2.44 | (2.05–2.9) | b | 2.8 % | 12.3 % | 5.72 | (3.1–10.58) | b | −0.82 | (-0.95–0.46) | b |
| Medical admissions | ||||||||||||||
| Public hospitals | ||||||||||||||
| Principal referral (A1) | 17 | 3.3 | 7.6 | 2.24 | (1.75–2.87) | b | 1.3 % | 18.3 % | 15.65 | (3.73–65.58) | b | −0.08 | (-0.61–0.49) | |
| Major metro- & non-metropolitan (B) | 22 | 2.3 | 4.5 | 2.03 | (1.59–2.58) | b | 0.0 % | 20.1 % | 0.29 | (-0.15–0.63) | ||||
| District group 1 (C1) | 13 | 1.5 | 5.5 | 4.32 | (2.72–6.86) | b | 4.0 % | 20.0 % | 5.81 | (1.58–21.41) | b | −0.36 | (-0.76–0.23) | |
| District group 2 (C2) | 30 | 2.3 | 7.0 | 3.65 | (2.64–5.06) | b | 0.0 % | 27.8 % | −0.13 | (-0.47–0.24) | ||||
| Private hospitals | ||||||||||||||
| Major (21) | 10 | 5.1 | 13.6 | 2.52 | (1.48–4.29) | b | 1.1 % | 20.0 % | 0.32 | (-0.39–0.79) | ||||
| District (22) | 12 | 3.6 | 12.9 | 3.88 | (2.55–5.92) | b | 4.6 % | 16.7 % | 2.57 | (0.66–9.97) | −0.67 | (-0.9–0.16) | a | |
| Surgical admissions | ||||||||||||||
| Public hospitals | ||||||||||||||
| Principal referral (A1) | 17 | 11.8 | 25.0 | 2.12 | (2.02–2.22) | b | 8.9 % | 14.0 % | 1.74 | (1.52–1.99) | b | −0.38 | (-0.76–0.19) | |
| Major metro- & non-metropolitan (B) | 22 | 7.9 | 14.3 | 1.74 | (1.61–1.88) | b | 7.2 % | 14.7 % | 2.01 | (1.62–2.49) | b | −0.21 | (-0.58–0.23) | |
| District group 1 (C1) | 13 | 7.2 | 13.7 | 1.88 | (1.63–2.16) | b | 5.8 % | 20.8 % | 4.11 | (2.5–6.75) | b | −0.30 | (-0.73–0.3) | |
| District group 2 (C2) | 30 | 2.9 | 14.7 | 3.75 | (2.83–4.98) | b | 3.8 % | 14.9 % | 4.37 | (2.06–9.26) | b | 0.05 | (-0.32–0.4) | |
| Private hospitals | ||||||||||||||
| Major (21) | 10 | 3.6 | 25.0 | 6.07 | (5.2–7.09) | b | 1.7 % | 11.2 % | 5.88 | (3.77–9.18) | b | −0.36 | (-0.81–0.35) | |
| District (22) | 12 | 5.9 | 11.8 | 2.37 | (1.99–2.81) | b | 2.2 % | 11.3 % | 6.88 | (3.24–14.62) | b | −0.72 | (-0.92–0.25) | b |
Incidence rates (IR) are crude and reported per 1000 patients
Incidence rate ratios (IRR) and related confident intervals (CI) were obtained using Poisson mixed models and adjusted for patient characteristics. Those hospitals with the lowest rate were set as the reference level
Ungrouped acute peer group within public hospitals was removed from analysis due to small number of hospitals within this group
aSignificant at 5 %; bsignificant at 1 %