Table 1Comparison of the prevalence of dengue infection and geographical origin of infections between Korea and Japan, 2006–2010.
|
Korea
|
Japan
|
No. of cases (%) |
95% CI |
No. of cases (%) |
95% CI |
No. of cases |
367 |
|
589 |
|
Prevalence rate |
0.15 |
0.06–0.24 |
0.09 |
0.07–0.11 |
Region |
Southeast Asia: |
303 (82.6) |
78.3–86.1 |
411 (69.8) |
65.1–72.5 |
The Philippines |
118 (32.2) |
27.6–37.1 |
83 (14.1) |
11.3–16.9 |
Indonesia |
55 (15.0) |
11.7–19.0 |
146 (24.8) |
21.3–38.2 |
Thailand |
42 (11.4) |
8.6–15.1 |
64 (10.9) |
7.7–14.1 |
Vietnam |
30 (8.2) |
5.8–11.5 |
26 (4.4) |
2.7–6.1 |
Cambodia |
27 (7.4) |
5.1–10.5 |
20 (3.4) |
1.9–4.8 |
Laos |
12 (3.3) |
1.8–5.7 |
12 (2.0) |
0.9–3.1 |
Malaysia |
10 (2.7) |
1.4–5.0 |
24 (4.1) |
2.5–5.0 |
Myanmar |
6 (1.6) |
0.7–3.6 |
6 (1.0) |
0.2–1.8 |
Singapore |
1 (0.3) |
– |
6 (1.0) |
0.2–1.8 |
East Timor |
2 (0.5) |
– |
5 (0.8) |
– |
Others |
– |
|
19 (3.2) |
1.8–3.6 |
Southern Asia: |
51(13.9) |
10.7–17.8 |
118 (20.0) |
17.8–24.4 |
India |
39 (10.6) |
7.9–14.2 |
90 (15.3) |
12.4–18.2 |
Pakistan |
– |
– |
1 (0.2) |
– |
Bangladesh |
6 (1.6) |
0.7–3.6 |
10 (1.7) |
0.7–2.7 |
Maldives |
3 (0.8) |
0.2–2.5 |
4 (0.7) |
– |
Nepal |
– |
– |
2 (0.3) |
– |
Sri Lanka |
2 (0.5) |
– |
6 (1.0) |
0.2–1.8 |
Others |
1 (0.3) |
– |
5 (0.8) |
– |
Eastern Asia: |
4 (1.1) |
0.3–2.9 |
10 (1.7) |
0.7–2.74 |
China |
3 (0.8) |
– |
– |
|
Taiwan |
1 (0.3) |
– |
1 (0.2) |
– |
Others |
– |
– |
9 (1.5) |
0.5–2.5 |
South America |
1 (0.3) |
– |
15 (2.5) |
1.3–3.9 |
Central America |
1 (0.3) |
– |
7 (1.2) |
0.3–2.0 |
Africa |
1 (0.3) |
– |
7 (1.2) |
0.3–2.0 |
Oceania |
– |
– |
14 (2.4) |
1.2–3.6 |
Other countries |
6 (1.6) |
0.7–3.6 |
7 (1.2) |
0.3–2.0 |
p
|
p < 0.01 |
|
p < 0.01 |
|
Total |
367 (100) |
|
589 (100) |
|
Table 2Comparison of epidemiological aspects of imported dengue in terms of sex, age, and seasons between Korea and Japan, 2006–2010.
|
Korea
|
Japan
|
No. of cases (%) |
95% CI |
No. of cases (%) |
95% CI |
No of cases |
367 |
|
589 |
|
Sex |
Male |
241 (65.7) |
60.7–70.3 |
382 (64.9) |
60.9–68.7 |
Female |
126 (34.3) |
29.7–39.3 |
207 (35.1) |
31.4–39.1 |
p
|
p < 0.01 |
|
p < 0.01 |
|
Age (y) |
< 9 |
2 (0.5) |
0.02–2.10 |
13 (2.2) |
1.3–3.8 |
10–19 |
35 (9.5) |
6.9–13.0 |
45 (7.6) |
5.7–10.1 |
20–29 |
119 (32.4) |
27.8–37.4 |
239 (40.6) |
36.7–44.6 |
30–39 |
106 (28.9) |
24.5–33.7 |
126 (21.4) |
18.3–24.9 |
40–49 |
63 (17.2) |
13.6–21.4 |
92 (15.6) |
12.9–18.8 |
50–59 |
32 (8.7) |
6.2–12.16 |
40 (6.8) |
5.0–9.1 |
> 60 |
10 (2.7) |
1.4–5.0 |
34 (5.8) |
4.1–8.0 |
p
|
p < 0.01 |
|
p < 0.01 |
|
Seasonality |
Spring (Mar–May) |
42 (11.4) |
8.6–15.1 |
91 (15.9) |
13.1–19.1 |
Summer (Jun–Aug) |
119 (32.4) |
27.8–37.4 |
172 (30.0) |
26.4–33.8 |
Autumn (Sep–Nov) |
143 (39.0) |
34.1–44.0 |
228 (39.7) |
35.8–43.8 |
Winter (Dec–Feb) |
63 (17.2) |
13.6–21.4 |
83 (14.5) |
11.8–17.6 |
p
|
p < 0.01 |
|
p < 0.01 |
|