Table 3.
Results of multivariable logistic regression analysis to determine factors associated with primary article publication in 1165 articles published in the early stages of COVID-19 pandemic
| Primary No. (%) |
Secondary No. (%) |
AOR | 95% CI | P value | ||
|---|---|---|---|---|---|---|
| Days since Jan 1st 2020 | 76 ± 27 days | 80 ± 22 days | 1.012 | 1.004 | 1.020 | 0.004 |
| Language of full text | ||||||
| English | 513 (51.3%) | 487 (48.7%) | 3.02 | 1.99 | 4.58 | < 0.001 |
| Other than English | 62 (37.6%) | 103 (62.4%) | Reference | |||
| Number of authors | ||||||
| None | 5 (16.7%) | 25 (83.3%) | 15.44 | 5.16 | 46.17 | < 0.001 |
| 1-2 | 39 (18.3%) | 174 (81.7%) | 13.12 | 8.02 | 21.46 | < 0.001 |
| 3-5 | 119 (36.8%) | 204 (63.2%) | 5.08 | 3.45 | 7.50 | < 0.001 |
| 6-10 | 228 (65.0% | 123 (35.0% | 1.58 | 1.08 | 2.32 | 0.018 |
| >11 | 184 (74.2%) | 64 (25.8%) | Reference | |||
| Country | ||||||
| China | 356 (60.5%) | 232 (39.5%) | Reference | |||
| United States | 59 (35.1%) | 109 (64.9% | 2.05 | 1.34 | 3.14 | 0.001 |
| Italy | 20 (26.0%) | 57 (74.0%) | 5.68 | 3.16 | 10.19 | < 0.001 |
| United Kingdom | 15 (39.5%) | 23 (60.5% | 1.77 | 0.82 | 3.80 | 0.145 |
| Japan | 22 (84.6%) | 4 (15.4% | 0.223 | 0.069 | 0.724 | 0.013 |
| Singapore | 9 (36.0%) | 16 (64.0%) | 4.17 | 1.70 | 10.27 | 0.02 |
| Korea | 17 (70.8%) | 7 (29.2%) | 0.402 | 0.142 | 1.138 | 0.09 |
| India | 4 (19.0%) | 17 (81.0%) | 7.17 | 2.23 | 23.04 | 0.001 |
| Germany | 5 (27.8%) | 13 (72.2%) | 3.73 | 1.17 | 11.88 | 0.001 |
| France | 8 (44.4%) | 10 (55.6%) | 2.12 | 0.73 | 6.16 | 0.17 |
| Taiwan | 6 (37.5% | 10 (62.5%) | 3.01 | 1.01 | 9.03 | 0.049 |
| Others | 54 (37.0% | 92 (63.0%) | 1.97 | 1.27 | 2.05 | 0.002 |
Continuous data are reported as Median ± IQR. Binary data are reported as number of observed events (percentage over the total). Hosmer–Lemeshow test: Chi square = 12.2; P = 0.14. Nagelkerke R squared: 0.33. aOR adjusted odds ratios, CI Confidence intervals