Table 3: Relation between hospital stay duration and diseases.

Diseases Hospital stay duration P
N Mean (days) Std dev
VIH infected 1899 18.9 23.8 < 10-3
VIH non infected 647 12.4 14.1
Infectious diseases only 2057 17.3 22.1 < 10-3
Infectious + other diseases 39 12.5 11.1