Table 3.
Study list of incubation period of COVID-19 estimation.
| References | N | Distribution | Mean, days (95% CI) | Median, days (95% CI) | Percentiles |
|---|---|---|---|---|---|
| Zhang et al. (13) | 49 | Log-normal | 5.2 (1.8, 12.4) | - | 95th: 10.5 |
| Li et al. (14) | Null | Gamma | 7.2 (6.8, 7.6) | - | - |
| Leung et al. (15) | 175 | Weibull | (Travelers to Hubei) 1.8 (1.0, 2.7) (Non-travelers) 7.2 (6.1, 8.4) |
- | (Travelers to Hubei) 95th: 3.2 (Non-travelers) 95th: 14.6 |
| Qian et al. (16) | 262 | - | 6.7 | - | - |
| Ping et al. (17) | 758(93) | Log-normal | - | 8.06 (6.9, 9.4). | 95th: 21.9 |
| Qian et al. (16) | 91 | - | - | 6 (3.0, 8.0) | - |
| Wang et al. (18) | 483 | Logarithm normal | 7.4 | 7.0 | - |
| Lu et al. (19) | 265 | Weibull | 6.4 (5.3, 7.6) | - | 5th: 1.0 95th: 13.1 |
| Ki et al. (20) | 28 | - | 3.9 (0, 15.0) | 3.0 | - |
| Guan et al. (21) | 1,099 | - | - | 4.0 (2.0, 7.0) | - |
| Li et al. (14) | 10 | Log-normal | 5.2 (4.1, 7.0) | - | 95th:12.5(9.2, 18) |
| Backer et al. (22) | 88 | Weibull Gamma Lognormal |
6.4 (5.6, 7.7) 6.5 (5.6, 7.9) 6.8 (5.7, 8.8) |
- | 95th:10.3 (8.6, 14.1) 95th:11.3 (9.1, 15.7) 95th:13.3 (9.9, 20.5) |
| Lauer et al. (23) | 181 | Outside mainland China (n = 108). | - | 5.5 (4.4, 7.0) | 95th: (2.1, 14.7) |
| Lauer et al. (23) | 181 | Inside mainland China (n = 73) | - | 4.8 (4.2, 5.6) | 95th: (2.5, 9.2) |
| Lauer et al. (24) | 181 | Lognormal | - | 5.1 (4.5,5.8) | 97.5th: 11.5 (8.2,15.6) |
| Linton et al. (25) | Excluding Wuhan residents (n = 52) | Lognormal Weibull Gamma |
5.0 (4.2, 6.0) 5.4 (4.3, 6.6) 5.3(4.3, 6.6) |
4.3(3.5, 5.1) 4.7(3.6, 5.8) 4.7(3.8,5.7) |
95th:10.6 (8.5, 14.1) 95th:12.0 (9.8, 15.6) 95th:11.3 (9.2, 14.5) |
| Linton et al. (25) | Including Wuhan residents (n = 158). | Lognormal Weibull Gamma |
5.6 (5.0, 6.3) 5.8 (5.2, 6.5) 6.0 (5.3, 6.7) |
5.0(4.4, 5.6) 5.3(4.7, 6.0) 5.6(4.9, 6.4) |
95th:10.8 (9.3, 12.9) 95th:11.0 (9.6, 12.9) 95th:11.7 (10.3, 13.4) |
| Jing et al. (12) | 1,211 | Weibull | 8.6 (8.0, 9.23) | 8.1 (7.4, 8.9) | 90th:14.7 (14.0, 15.3) 99th:20.6(19.5, 21.6) |
| Han et al. (24) | 59 | Monte Carlo simulation | 5.8 | 5.0 | - |