Id |
Subject |
Object |
Predicate |
Lexical cue |
T118 |
0-38 |
Sentence |
denotes |
Changes in traffic and COVID-19 trends |
T119 |
39-147 |
Sentence |
denotes |
In Figure 4, the first COVID-19 patient in South Korea is indicated by a vertical dotted line on January 19. |
T120 |
148-328 |
Sentence |
denotes |
The daily new confirmed cases are displayed as a blue line, and the cumulative number released from isolation is displayed as green squares, corresponding to the right-hand y-axis. |
T121 |
329-577 |
Sentence |
denotes |
Following the first COVID-19 patient in South Korea, the traffic trend curve (displayed as a red line) decreased continuously until the first week of March, while the frequency of daily new confirmed COVID-19 cases increased during the same period. |
T122 |
578-828 |
Sentence |
denotes |
Thereafter, the national traffic trend curve shifted to an increasing trend from March 7, while the daily new confirmed COVID-19 cases shifted to a decreasing trend, and the cumulative number released from isolation began to show an increasing trend. |
T123 |
829-974 |
Sentence |
denotes |
Thus, as the COVID-19 situation in South Korea began to improve after March 7, the rate of increase in the traffic trend curve continued to grow. |
T124 |
975-1185 |
Sentence |
denotes |
When the regional traffic trend curves and COVID-19 trends were analyzed in Seoul, Incheon, and Gyeonggi, the number of new confirmed cases and the traffic trends in March both increased compared with February. |
T125 |
1186-1325 |
Sentence |
denotes |
Other regions showed a decrease in the number of new confirmed cases compared with February, while the traffic trends increased (Figure 4). |
T126 |
1326-1509 |
Sentence |
denotes |
Scatter plots were created to show regional daily traffic in 2020 against the daily new confirmed COVID-19 cases (Figure 5 ), and single regression analyses were performed (Table 2 ). |
T127 |
1510-1688 |
Sentence |
denotes |
In Incheon, there was a positive but insignificant linear relationship (β = 43 146; p = 0.056) with an increasing number of new confirmed cases associated with increased traffic. |
T128 |
1689-1843 |
Sentence |
denotes |
Meanwhile, all the other regions showed negative linear relationships, with traffic decreasing as the numbers of new confirmed cases increased (Figure 5). |
T129 |
1844-2200 |
Sentence |
denotes |
The regions showing significant linear relationships were the national region (β = −52 176, p < 0.001), Busan (β = −17 895, p < 0.001), Daegu (β = −1778.5, p < 0.001), Gwangju (β = −39 368, p = 0.005), Ulsan (β = −77 689, p = 0.003), Chungbuk (β = −637 223, p = 0.002), Gyeongbuk (β = −49 467, p < 0.001), and Gyeongnam (β = −230 313, p = 0.006) (Table 2). |
T130 |
2201-2262 |
Sentence |
denotes |
Figure 5 Scatter plots and single regression lines by region. |
T131 |
2263-2369 |
Sentence |
denotes |
Table 2 The result of single linear regression between traffic in 2020 and newly confirmed COVID-19 cases. |
T132 |
2370-2383 |
Sentence |
denotes |
β β t-value p |
T133 |
2384-2422 |
Sentence |
denotes |
(a) National −52 176.0 −4.17 <0.001*** |
T134 |
2423-2453 |
Sentence |
denotes |
(b) Seoul −3 025.6 −0.72 0.474 |
T135 |
2454-2485 |
Sentence |
denotes |
(c) Incheon 43 146.0 1.94 0.056 |
T136 |
2486-2520 |
Sentence |
denotes |
(d) Gyeonggi −19 180.0 −0.30 0.766 |
T137 |
2521-2556 |
Sentence |
denotes |
(e) Busan −17 895.0 −3.68 <0.001*** |
T138 |
2557-2591 |
Sentence |
denotes |
(f) Daegu −1 778.5 −5.58 <0.001*** |
T139 |
2592-2626 |
Sentence |
denotes |
(g) Gwangju −39 368.0 −2.9 0.005** |
T140 |
2627-2660 |
Sentence |
denotes |
(h) Daejeon −71 490.0 −1.66 0.100 |
T141 |
2661-2694 |
Sentence |
denotes |
(i) Ulsan −77 689.0 −3.03 0.003** |
T142 |
2695-2724 |
Sentence |
denotes |
(j) Sejong −806.5 −1.84 0.069 |
T143 |
2725-2762 |
Sentence |
denotes |
(k) Chungbuk −637 223.0 −3.23 0.002** |
T144 |
2763-2797 |
Sentence |
denotes |
(l) Chungnam −62 733.0 −1.96 0.053 |
T145 |
2798-2832 |
Sentence |
denotes |
(m) Jeonbuk −322 490.0 −1.03 0.308 |
T146 |
2833-2867 |
Sentence |
denotes |
(n) Jeonnam −217 346.0 −1.15 0.255 |
T147 |
2868-2907 |
Sentence |
denotes |
(o) Gyeongbuk −49 467.0 −5.05 <0.001*** |
T148 |
2908-2946 |
Sentence |
denotes |
(p) Gyeongnam −230 313.0 −2.81 0.006** |
T149 |
2947-2983 |
Sentence |
denotes |
*p < 0.05, **p < 0.01, ***p < 0.001. |