Figures & data
Figure 1. Distribution of pre-operative hemoglobin (Hb) values that triggered an alert. Values over each Hb concentration are within a range of ±0.25 g/dl of that concentration, i.e. there were four male patients with pre-operative Hb concentrations that triggered an alert between 11.25and 11.75 g/dl represented in the bar above 11.5 g/dl.
Figure 2. Frequency of pre-operative anemia alerts sent in relation to the day of surgery. On average, the alerts were sent 15±10 days (mode=1 day) before the day of surgery.
Table 1. The nature of pre-operative anemia treatment