Table 1.
List of studies included in the meta-analysis.
| References | Year | Country | Type of study | Total n | Males total | Comparison | Severe COVID-19/died n | Males Severe COVID-19 | Age in median (range) or Mean (SD) | Mild COVID-19/survivors n | Males in mild COVID-19 | Age in median (range) or Mean (SD) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cai et al. (18)* | 2020 | China | Retrospective study | 318 | 151 | Mild vs. severe | 85 | NA | NA | 233 | NA | NA |
| Wang et al. (14) | 2020 | China | Retrospective study | 138 | 75 | Mild vs. severe | 36 | 22 | 66 (57–78) | 102 | 53 | 51 (37–62) |
| Deng et al. (33) | 2020 | China | Retrospective study | 91 | 86 | Survivors vs. non-survivors | 109 | 73 | 69 (62–74) | 116 | 51 | 40 (33–57) |
| Fu et al. (20)* | 2020 | China | Retrospective study | 299 | 159 | Mild vs. severe | 88 | NA | NA | 211 | NA | NA |
| Huang et al. (13) | 2020 | China | Prospective study | 41 | 86 | Mild vs. severe | 13 | 11 | 49 (41–61) | 28 | 19 | 49 (41–57·5) |
| Wang et al. (38) | 2020 | China | Retrospective study | 339 | 86 | Survivors vs. non-survivors | 65 | 50 | 76 (70–83) | 274 | 127 | 68 (64–74) |
| Liu et al. (21) | 2020 | China | Retrospective study | 30 | 10 | Mild vs. severe | 4 | NA | NA | 26 | NA | NA |
| Mo et al. (22) | 2020 | China | Retrospective study | 155 | 86 | Mild vs. severe | 85 | 55 | 61 (51–70) | 70 | 31 | 46 (35–56) |
| Qian et al. (23) | 2020 | China | Retrospective study | 91 | 37 | Mild vs. severe | 9 | NA | 66 (54–80) | 82 | NA | 49 (35.3–56) |
| Qu et al. (24) | 2020 | China | Retrospective study | 30 | 16 | Mild vs. severe | 3 | NA | 60 ± 5.29 | 27 | NA | 49.44 ± 14.86 |
| Ruan et al. (35) | 2020 | China | Retrospective study | 150 | 102 | Survivors vs. non-survivors | 68 | 49 | 67 (15–81) | 82 | 53 | 50 (44–81) |
| Tianxin et al. (25) | 2020 | China | Retrospective study | 49 | 33 | Mild vs. severe | 9 | 8 | 53.0 ± 14 | 40 | 25 | 40.6 ± 14.3 |
| Liu et al. (26) | 2020 | China | Retrospective study | 78 | 86 | Mild vs. severe | 11 | 7 | 66 (51–70) | 67 | 32 | 37 (32, 41) |
| Wan et al. (27) | 2020 | China | Prospective study | 135 | 86 | Mild vs. severe | 40 | 21 | 56 (52–73) | 95 | 52 | 44 (33!49) |
| Wu et al. (28) | 2020 | China | Retrospective study | 201 | 128 | Mild vs. severe | 84 | 60 | 58.5 (50–69) | 117 | 68 | 48 (40–54) |
| Wu et al. (28) subgroup | 2020 | China | Retrospective study | 84 | 60 | Survivors vs. non-survivors | 44 | 29 | 68.5 (59.3–75) | 40 | 31 | 50 (40.3–56.8) |
| Xu et al. (32) | 2020 | China | Retrospective study | 62 | 35 | Mild (<10 days) vs. severe (>10 days) | 33 | 19 | 45 (37–54) | 29 | 16 | 39 (31–50) |
| Yang et al. (36) | 2020 | China | Retrospective study | 52 | 86 | Survivors vs. non-survivors | 32 | 21 | 64.6 (11.2) | 20 | 14 | 51.9 (12.9) |
| Yudong et al. (29) | 2020 | China | Retrospective study | 112 | 86 | Mild vs. severe | 16 | 9 | 57.5 (54–63) | 96 | 44 | 62 (55–67.5) |
| Yun et al. (30) | 2020 | China | Retrospective study | 292 | 154 | Mild vs. severe | 21 | 19 | 65.5 ± 15.7 | 271 | 135 | 48.7 ± 15.7 |
| Wang et al. (14) | 2020 | China | Retrospective study | 69 | 32 | Mild vs. severe | 14 | 7 | 70.5 (62–77) | 55 | 25 | 37 (32–51) |
| Zhang et al. (31) | 2020 | China | Retrospective study | 115 | 49 | Mild vs. severe | 31 | 20 | 64.58 ± 13.26 | 84 | 29 | 43.96 ± 14.84 |
| Zhou et al. (37) | 2020 | China | Retrospective study | 191 | 86 | Survivors vs. non-survivors | 54 | 38 | 69 (63–76) | 137 | 81 | 52 (45–58) |
COVID-19- Coronavirus 2019, NA, Not available. *Study demographics in percentage used to calculate gender number.