Fig. 4: Average daily hospital cost per tercile of hospitalization.

Total Hospital cost was divided in three equal parts and the average daily hospital costs calculated (Supplementary Table 2c). There is a significant association between time period and cost (p = 0.047; repeated measures ANOVA). There was statistically significant decrease in average daily hospital cost from the first third of the hospitalization compared to the last third (p = 0.036, mean difference 1438.53, SE 518.81, 95% CI 76.60–2800.47), but there was no statistically significant decrease when comparing the first third of the hospitalization with the second third (p = 1, mean difference 178.22, SE 352.18, 95% CI −746.30 to 1102.73) or the second third with the last third (p = 0.1, mean difference 1260.32, SE 551.59, 95% CI −187.66 to 2708.30; repeated measures ANOVA with Bonferroni correction).