Delay of timeliness relative to 5 January 2020
| Any policy | Individual | Environmental | Surveillance /response | Distancing | International travel | |
| Single independent variables | ||||||
| Any epidemics | −8.0410 (3.6226)* | −5.9035 (8.8169) | −10.3716 (7.4316) | −8.8626 (4.0429)* | −6.0304 (2.8531)* | −9.9082 (3.9583)* |
| Adj. R2 | 0.2705 | 0.2128 | 0.2461 | 0.3144 | 0.4909 | 0.2235 |
| Num. obs. | 148 | 69 | 78 | 147 | 147 | 148 |
| Total number of cases | −0.0012 (0.0009) | 0.0031(0.0046) | 0.0004 (0.0012) | −0.0008 (0.0010) | −0.0001 (0.0007) | −0.0011 (0.0010) |
| Adj. R2 | 0.2548 | 0.2129 | 0.2253 | 0.2932 | 0.4743 | 0.1957 |
| Num. obs. | 148 | 69 | 78 | 147 | 147 | 148 |
| Year since last epidemics | 0.0241 (0.4000) | 0.2363 (1.4658) | −0.5234 (1.1168) | 0.1883 (0.4104) | −0.3189 (0.3280) | −0.0795 (0.4842) |
| Adj. R2 | 0.2344 | −0.0454 | 0.1698 | 0.446 | 0.6478 | 0.1705 |
| Num. obs. | 52 | 27 | 31 | 52 | 52 | 52 |
| Two independent variables | ||||||
| Any epidemics | −7.1323 (3.8315) | −7.4451 (9.0338) | −13.2051 (8.0233) | −8.7531 (4.2915)* | −6.4996 (3.0211)* | −9.3745 (4.1926)* |
| Total number of cases | −0.0007 (0.0009) | 0.0039 (0.0047) | 0.0012 (0.0013) | −0.0001 (0.0010) | 0.0004 (0.0007) | −0.0004 (0.0010) |
| Adj. R2 | 0.2681 | 0.2084 | 0.2448 | 0.3093 | 0.488 | 0.2187 |
| Num. obs. | 148 | 69 | 78 | 147 | 147 | 148 |
| Any epidemics | −5.6692 (5.1394) | 7.1027 (19.1462) | −16.6054 (16.3505) | −3.1411 (5.3304) | −5.1064 (4.2011) | −10.918 (6.0704) |
| Year since last epidemics | −0.1456 (0.4276) | 0.3776 (1.5571) | −1.3373 (1.3738) | 0.0943 (0.4435) | −0.4717 (0.3495) | −0.4063 (0.5050) |
| Adj. R2 | 0.2385 | −0.1092 | 0.1712 | 0.4368 | 0.652 | 0.2143 |
| Num. obs. | 52 | 27 | 31 | 52 | 52 | 52 |
| Total number of cases | −0.0011 (0.0009) | 0.0026 (0.0077) | 0.0003 (0.0024) | −0.0005 (0.0010) | −0.0002 (0.0008) | −0.0008 (0.0011) |
| Year since last epidemics | −0.0646 (0.4040) | 0.3412 (1.5437) | −0.4686 (1.2322) | 0.1506 (0.4211) | −0.3368 (0.3373) | −0.1404 (0.4954) |
| Adj. R2 | 0.2440 | −0.1113 | 0.1244 | 0.4354 | 0.6396 | 0.1593 |
| Num. obs. | 52 | 27 | 31 | 52 | 52 | 52 |
| All three independent variables | ||||||
| Any epidemics | −5.3146 (5.1250) | 6.3976 (19.9700) | −17.7499 (17.1268) | −2.9931 (5.3945) | −5.0487 (4.2606) | −10.6990 (6.1317) |
| Total number of cases | −0.0011 (0.0009) | 0.0022 (0.0080) | 0.0008 (0.0025) | −0.0005 (0.0010) | −0.0002 (0.0008) | −0.0007 (0.0011) |
| Year since last epidemics | −0.2192 (0.4303) | 0.4552 (1.6349) | −1.2421 (1.4384) | 0.0635 (0.4529) | −0.4837 (0.3577) | −0.4517 (0.5148) |
| Adj. R2 | 0.2454 | −0.1874 | 0.1280 | 0.4252 | 0.6433 | 0.2012 |
| Num. obs. | 52 | 27 | 31 | 52 | 52 | 52 |
***, ** and * indicate p<0.001, 0.01 and 0.05, respectively. The output from all other covariates is suppressed. Each observation reflects one single policy from a health system. An N of 52, for example, would suggest that 52 health systems’ first policies were analysed.