Table 4.
Medical history taking (% of patients asked required questions) before (epoch 1) and after (epoch 2) phase two of Safer Patients Initiative (SPI2) and effect of SPI. Figures are percentages (binomial standard errors (SE)) and odds ratios (99% confidence intervals) and P values for effect of SPI2
| Control hospitals | SPI2 hospitals | OR (99% CI)†, P value | ||||||
|---|---|---|---|---|---|---|---|---|
| Epoch 1 (n=120) | Epoch 2 (n=123) | Epoch 3* (n=112) | Epoch 1 (n=116) | Epoch 2 (n=117) | Epoch 3* (n=114) | |||
| Duration of “presenting” symptom | 93 (2) | 91 (3) | 96 (2) | 97 (2) | 98 (1) | 99 (1) | 1.7 (0.07 to 40.3), 0.672 | |
| Normal exercise tolerance | 27 (4) | 32 (4) | 38 (5) | 39 (5) | 38 (5) | 34 (5) | 0.7 (0.3 to 1.7), 0.312 | |
| Presence/absence shortness of breath | 88 (3) | 91 (3) | 88 (3) | 91 (3) | 93 (2) | 92 (3) | 1.3 (0.3 to 5.7), 0.701 | |
| Presence/absence orthopnoea | 23 (4) | 28 (4) | 17 (4) | 33 (4) | 29 (4) | 18 (4) | 0.9 (0.3 to 2.6), 0.749 | |
| Presence/absence cough | 88 (3) | 89 (3) | 87 (3) | 91 (3) | 92 (3) | 84 (4) | 0.7 (0.2 to 2.4), 0.407 | |
| If cough present, was it productive | 78 (4) | 85 (3) | 78 (4) | 87 (3) | 88 (3) | 77 (4) | 0.7 (0.2 to 2.1), 0.418 | |
| Smoking history taken | 74 (4) | 81 (4) | 66 (5) | 78 (4) | 80 (4) | 74 (4) | 1.5 (0.5 to 4.0), 0.313 | |
| Presence/absence of haemoptysis | 22 (4) | 28 (4) | 16 (4) | 25 (4) | 23 (4) | 26 (4) | 2.2 (0.7 to 6.5), 0.061 | |
| Chest pain (of any type) | 68 (4) | 72 (4) | 55 (5) | 54 (5) | 66 (4) | 60 (5) | 2.1 (0.9 to 5.2), 0.028 | |
| Occupation/previous occupation | 44 (5) | 38 (4) | 54 (5) | 35 (5) | 39 (5) | 38 (5) | 0.6 (0.3 to 1.5), 0.178 | |
| Pets at home | 3 (2) | 3 (2) | 1 (1) | 2 (1) | 3 (2) | 6 (2) | 8.3 (0.3 to 210.0), 0.093 | |
| % over all items | 56 | 58 | 54 | 68 | 59 | 57 | — | |
*After intervention.
†OR >1 favours SPI2.