Table 2 Data collection at each case site - Observation of patients

Patients Observed (number)

8

7

9

7

31

Mean patient age (range)

83 (77–87)

84 (75–93)

88 (79–99)

85 (75–94)

88 (75–99)

Patient Gender

Male = 1

Male = 2

Male = 4

Male = 4

Male = 11

Female = 7

Female = 5

Female = 5

Female = 3

Female = 20

Observation time (approximate, number of hours)

71 h

45 h

22 h

32 h

170 h

Time in the field (approximate, number of hours)

161 h

167 h

73 h

85 h

480 h