From: The effect of a hand hygiene intervention on infections in residents of nursing homes: a cluster randomized controlled trial
HAI
Range
Mean
Interquartile range
25%
50% (median)
75%
Gastroenteritis
0–5.56
0.64
0.00
0.25
0.78
Influenza-like illness
0–5.72
0.70
0.30
0.92
Pneumonia
0–1.65
0.34
0.43
0.86
Urinary tract infection
0–6.28
1.63
0.72
1.26
2.18