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Table 2 Number of diary reports versus sensor recordings stratified by contact duration

From: Contact diaries versus wearable proximity sensors in measuring contact patterns at a conference: method comparison and participants’ attitudes

 

Sensor

Diary

No detection

<5 min

5-15 min

15-60 min

>60 min

Unknown ID

Σ

No report

n.d.

302 a (394b)

9 (11)

2 (2)

0 (0)

n.d.

313 (407)

<5 min

49 (49)

63 (52)

5 (4)

1 (1)

0 (0)

2 (14)

120 (120)

5-15 min

29 (27)

37 (29)

5 (5)

2 (2)

0 (0)

0 (10)

73 (73)

15-60 min

18 (18)

27 (26)

6 (5)

6 (6)

0 (0)

2 (4)

59 (59)

>60 min

3 (3)

20 (11)

16 (17)

21 (24)

2 (2)

0 (5)

62 (62)

Duration missing

7 (7)

8 (7)

0 (0)

0 (0)

0 (0)

0 (1)

15 (15)

Σ

106 (104)

457 (519)

41 (42)

32 (35)

2 (2)

4 (34)

642 (736)

  1. Columns contain sensor measurements, rows diary reports; bold numbers show data after filtering (sensor data) and matching (sensor-optimized), numbers in parentheses show crude data; n.d. = not defined; a272 1 min duration, b307 1 min duration, both sensor-measured