Correction to: Perioper Med (2019) 8:10

https://doi.org/10.1186/s13741-019-0121-3

Following publication of the original article (Machowska et al. 2019), the authors provided new footnotes for Table 1 and Table 2. The complete tables and updated footnotes are supplied below.

Table 1 Inpatients’ characteristics at surgery departments of the TH and NTH in Madhya Pradesh, India
Table 2 Classification of surgery inpatients in four selected diagnoses groups, based on their diagnoses