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Table 1 Characteristics of available studies on the relationship between obesity and COVID-19

From: Obesity is associated with severe disease and mortality in patients with coronavirus disease 2019 (COVID-19): a meta-analysis

Number Author Year Country Patients BMI Outcomes
1 Natasha N 2020 USA 238 30 1.7 (1.1–2.8) for mortality
2 Céline 2020 France 347 30 3.0 (1.0–8.7) for severity
3 Nikroo 2020 USA 363 NA 1.23 (0.77–1.98) for mechanical ventilation;1.26 (0.79–1.98) for ICU; 1.03 (0.51–2.09) for mortality
4 Edgar 2020 Mexico 140 NA 2.3265 (1.0133–5.3415) for ICU
5 Bo 2020 USA 58 30 1.98 (0.56–7.72) for hospitalisation; 2.04 (0.5–8.4) for mortality
6 Marie E 2020 USA 531 30 1.9 (1.1–3.3) for hospitalisation
7 Geehan 2020 USA 463 40 2.0 (1.4–3.6) for ICU
8 Eduardo 2020 Mexico 32,583 NA 6.92 (5.54–8.65) for infection
9 Michael 2020 USA 1000 30 1.2911 (0.9478–1.7587) for ICU
10 Xiao 2020 USA NA NA 0.94 (0.86, 1.02) for mortality
11 Mark 2020 UK 387,109 30 1.97 (1.61, 2.42) for hospitalisation
12 Philip 2020 USA 50 NA 14.4 (2.7052–76.6517) for severity
13 Juan 2020 Bolivia 107 NA 12.125 (1.690–86.948) for mortality
14 Stefano 2020 Italy 132 30 1.526 (1.243–1.874) for ICU
15 J.M. 2020 Spain 172 30 4.725 (1.6143–13.8302) for ICU
16 Omar 2020 Mexico 177,133 NA 1.5790(1.5358–1.6235) for infection
17 Nicole 2020 USA 928 NA 0.99 (0.58–1.71) for mortality
18 Kaveh 2020 USA 770 30 1.76 (1.24–2.48) for ICU; 1.72 (1.22–2.44) for mechanical ventilation; 1.15 (0.62–2.14) for mortality
19 Luca 2020 Italy 92 30 4.19 (1.36–12.89) for mechanical ventilation; 11.65 (3.88–34.96) for ICUs; 0.27 (0.03–2.05) for mortality
20 Eboni G 2020 USA 3626 30 1.43 (1.20–1.71) for hospitalization
21 Frederick S 2020 USA 105 30 1.2908 (0.5936–2.8071) for severity
22 Eyal 2020 USA 3406 40 1.6 (1.2–2.3) for the older population mortality
23 Andrea 2020 Italy 233 NA 3.04 (1.42–6.49) for mortality
24 Annemarie B1 2020 UK 20,133 NA 1.33 (1.19 to 1.49) for mortality
25 Qingxian 2020 China 383 28 3.4 (1.4–8.26) for severity
26 Jerry Y 2020 USA 67 30 0.8000 (0.1784–3.5872) for ICU
27 Markos 2020 USA 103 30 6.85 (1.05–44.82) for mechanical ventilation; 2.65 (0.64–10.95) for ICU
28 Arthur 2020 France 124 30 3.45 (0.83–14.31) for mechanical ventilation
29 Simon 2020 UK 3802 30 1.41 (1.04–1.91) for infection
30 Kenneth I 2020 China 214 25 6.32 (1.16–34.54) for severity
31 Ling 2020 China 323 30 1.2514 (0.3735–4.1935) for severity
32 Leonidas 2020 USA 200 35 3.78 (1.45–9.83) for mortality
33 Christopher 2020 USA 5279 30 1.8 (1.47 to 2.2) for hospitalisation
34 Rui 2020 China 202 28 9.219 (2.731–31.126) for severity
35 Feng 2020 China 150 25 2.91 (1.31–6.47) for severity
36 Matteo 2020 Italy 482 30 4.96 (2.53–9.74) for ICU; 12.1 (3.25–45.1) for mortality
37 Malcolm 2020 France 83 30 6.7879 (2.5923–17.7739) for infection
38 Mohamed 2020 USA 504 30 1.3 (1.0–1.7) for mortality; 2.4 (1.5–4.0) for mechanical ventilation
39 Yudong Peng 2020 China 244 24 8.5853 (4.1817–17.6260) for mortality
40 Ming Deng 2020 China 65 28 14 (2.0799–94.2358) for severity
41 Marta Crespo 2020 Spain 16 NA 5 (0.5842–42.7971) for mortality
42 Danielle Toussie 2020 USA 338 30 3.0 (1.6–5.6) for infection
43 Michelle Elias 2020 France 1216 30 3.31 (1.90 to 5.77) for infection
44 Sudham Chand 2020 USA 300 30 1.35 (0.88,2.06) for mortality
45 Justin S. Brandt 2020 USA 183 30 0.875 (0.3466–2.2088) for infection
46 Astrid Lievre 2020 France 1289 30 1.1461 (0.8165–1.6088) for mortality