Table 2 Measures of association between death and patient characteristics, process of care, preventable and non-preventable adverse events
Independent variables | Number of cases (A) | Number of deaths (B) | % Deaths (B/A*100) | Measure of association |
|---|---|---|---|---|
Gender | ||||
Male* | 427 | 49 | 11.5 | OR 0.55 (95% CI: 0.36-0.84) |
Female | 676 | 45 | 6.7 | (p < 0.005) R = -0.08 |
Age bracket | ||||
18-49* | 622 | 20 | 3.2 | |
50-59 | 155 | 17 | 11.0 | χ2 63.380; 4 df, p < 0.000 |
60-69 | 153 | 22 | 14.4 | Somers' D 0.11, p < 0.000 |
70-79 | 122 | 22 | 18.0 | R = 0.24 |
80-99 | 51 | 13 | 25.5 | |
Charlson index (score) | ||||
Primary diagnosis | ||||
0* | 904 | 54 | 6.0 | OR 3.96 (95% CI: 2.54-6.16) |
1 | 199 | 40 | 20.1 | (p < 0.000) R = 0.20 |
Secondary diagnosis | ||||
0* | 828 | 44 | 5.3 | χ2 46.200; 2 df, p < 0.000 |
1 | 146 | 23 | 15.8 | Somers' D 0,12, p < 0.000 |
≥ 2 | 129 | 27 | 20.9 | R = 0.20 |
Type of admission | ||||
Elective* | 492 | 14 | 2.8 | OR 5.14 (95% CI: 02.89-9.20) |
Urgency/Emergency | 611 | 80 | 13.1 | (p < 0.000) R = 0.18 |
Specialty | ||||
Obstetrics* | 215 | 0 | 0.0 | OR 0.79 (95% CI: 0.76-0.81) |
Non-obstetrics | 888 | 94 | 10.6 | p < 0.000 R = 0.15 |
Procedures performed** | ||||
No* | 248 | 26 | 10.5 | OR 0.74 (95% CI: 0.46-1.19) |
Yes | 855 | 68 | 8.0 | (p > 0.209) R = -0.04 |
Adverse event* | ||||
No * | 1019 | 62 | 6.1 | OR 9.50 (95% CI: 5.71-15.82) (p < 0.000) |
Yes | 84 | 32 | 38.1 | R = 0.30 |
Preventable adverse event | ||||
No* | 1047 | 69 | 6.6 | OR 11.43 (95% CI: 6.40-20.43) (p < 0.000) |
Yes | 56 | 25 | 44.6 | R = 0.30 |
Total | 1103 | 94 | 8.5 |