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. 2013 Apr 23;13:185. doi: 10.1186/1471-2334-13-185

Table 2.

Contact matrix between the different roles (A: assistants; D: physicians; N: nurses; P: patients; C: caregivers)

  A D N P C
A
298
1.16
24.7
0.95
1.92
D
1.16
20.8
3.99
0.95
1.20
N
24.7
3.99
47.3
2.32
2.57
P
0.95
0.95
2.32
1.27
46.9
C 1.92 1.20 2.57 46.9 1.80

The number at row X and column Y gives the average over all pairs of individuals x in X and y in Y of the average daily time, in seconds, that x and y have spent in face-to-face proximity.