From: Assessment of electronic disease early warning system for improved disease surveillance and outbreak response in Yemen
Year
Number of published Bulletin
Delay in days
Mean
Std. Deviation
Minimum
Maximum
2013
32
3
9
4.06
1.242
2014
50
0
10
2.80
1.654
2015
46
5
0.15
0.788
2016
49
30
9.55
4.912
2017
48
22
9.00
4.048