|
Author
|
Eligible females (n)
|
Pregnant (%)
|
Mortality (%)
|
Hospital admission(%)
|
ICU admission(%)
|
Country of origin
|
Study Levelc
|
|---|
|
CDC/FluSurv-NETb [7,8,9]
|
2531
|
27.1
|
2.1
|
N/A
|
17.5
|
USA
|
Hospital
|
|
CNISPb [10]
|
529
|
24.4
|
3.0
|
N/A
|
20.6
|
Canada
|
Hospital
|
|
D’Ortenziob [11]
|
17
|
35.3
|
47.1
|
N/A
|
N/A
|
Réunion Island
|
ICU
|
|
Echevarria-Zuno [12, 13]
|
25,206
|
6.0
|
1.1
|
9.9
|
11.8a
|
Mexico
|
Community
|
|
Fuhrmannb [14]
|
528
|
38.4
|
9.8a
|
N/A
|
24.2a
|
France
|
Hospital/ICU
|
|
Harrisb [15]
|
51
|
54.9
|
2.0a
|
39.2
|
15.6a
|
Australia
|
Community
|
|
Helferty [16]
|
889
|
29.9
|
7.5a
|
N/A
|
19.2
|
Canada
|
Hospital
|
|
Huang [17]
|
141
|
7.1
|
5.7
|
N/A
|
24.1
|
Taiwan
|
Hospital
|
|
Jain [18]
|
67
|
26.9
|
6
|
N/A
|
24.2
|
USA
|
Hospital
|
|
Joves Sevic [19]
|
14
|
21.4
|
21.4
|
N/A
|
N/A
|
Serbia
|
ICU
|
|
Kelly [20]
|
317
|
23.3
|
4.7
|
N/A
|
29.3
|
Australia
|
Hospital
|
|
Kusznierz [21]
|
48
|
29.2
|
39.6
|
N/A
|
52.1
|
Argentina
|
Hospital
|
|
Lehnersb [22]
|
56
|
51.8
|
0.0
|
55.4
|
10.7
|
Germany
|
Community
|
|
Lenzid [23]
|
488
|
29.5
|
15
|
52.7
|
N/A
|
Brazil
|
Community
|
|
Limb [24]
|
197
|
41.1
|
1.5
|
N/A
|
5.6
|
Singapore
|
Hospital
|
|
Malonda [25]
|
274
|
46.4
|
4.2a
|
86.9
|
11.1
|
Spain
|
Community
|
|
Martin-Loechesb [26]
|
452
|
20.6
|
13.9
|
N/A
|
N/A
|
Spain
|
ICU
|
|
Mehta [27]
|
36
|
16.7
|
13.9
|
N/A
|
N/A
|
India
|
Hospital
|
|
Mulrennan [28]
|
22
|
22.7
|
0.0
|
N/A
|
22.7
|
Australia
|
Hospital
|
|
Nishiokab
|
1557
|
25.8
|
11.1
|
N/A
|
24.6
|
Brazil
|
Hospital
|
|
Oh [29]
|
176
|
11.9
|
0.6
|
N/A
|
4
|
South Korea
|
Hospital
|
|
Orellano [30]
|
1689
|
7.1
|
2.7
|
60.5
|
N/A
|
Argentina
|
Community
|
|
Poeppl [31]
|
42
|
35.7
|
9.5
|
69
|
9.5
|
Austria
|
Community
|
|
Riquelmeb [32]
|
73
|
52.1
|
8.3
|
72.6
|
16.4
|
Spain, Chile
|
Community
|
|
Riquelmeb [33]
|
99
|
16.2
|
15.2
|
N/A
|
34.7
|
Global
|
Hospital
|
|
Sertogullarindan [34]
|
9
|
22.2
|
22.2
|
N/A
|
N/A
|
Turkey
|
ICU
|
|
Skarbinski [35]
|
68
|
42.6
|
7.7
|
N/A
|
25
|
USA
|
Hospital
|
|
Thompson [36]
|
141
|
35.5
|
4.3
|
N/A
|
21.3
|
USA
|
Hospital
|
|
Van’t Klooster [38]
|
339
|
19.5
|
0.9
|
N/A
|
9.7
|
Netherlands
|
Hospital
|
|
Viasus [39]
|
210
|
46.7
|
2.4
|
N/A
|
10.5
|
Spain
|
Hospital
|
|
Xu [40]
|
103
|
54.4
|
20.4
|
N/A
|
38.6
|
China
|
Hospital
|
|
Yangb [41]
|
114
|
14.9
|
11.4
|
93
|
21.2
|
China
|
Community
|
|
Zolotusca [42]
|
15
|
20.0
|
13.3
|
N/A
|
53.3
|
Romania
|
Hospital
|
- aNote percentages in Table 1 were based on valid data only; missing data were not included in the calculation
- bAdditional data that was not included in the original publication was provided, unpublished data (Nishioka), and/or several publications based on the dataset provided (CDC, CNISP). FluSurv-NET = Influenza Hospitalization Surveillance Network
- cStudies were considered conducted in a ‘community’ setting if participants were seeking health care but have not yet been admitted to a hospital
- dOnly a partial dataset available
- N/A either no data available or not applicable, e.g. hospital admission as an outcome in a population that was hospitalized as an inclusion criterion for the study. ICU: intensive care unit
