Year | Number of Sri Lankan travellers | Number of imported malaria cases acquired in India among | Risk of a malaria infection (per 100,000 travellers) | 95% confidence interval of risk | Risk of a malaria infection if 50% of cases are missed (per 100,000 travellers) | 95% confidence interval of risk if 50% of cases are missed | ||
---|---|---|---|---|---|---|---|---|
To India | From India | Sri Lankan nationals | Foreign nationals | |||||
2008 | 171,490 | 180,641 | 14 | 0 | 7.75 | 3.69–11.81 | 15.50 | 9.76–21.24 |
2009 | 175,839 | 181,505 | 15 | 1 | 8.26 | 4.08–12.45 | 16.53 | 10.61–22.44 |
2010 | 222,876 | 230,433 | 31 | 11 | 13.45 | 8.72–18.19 | 26.91 | 20.21–33.60 |
2011 | 277,856 | 287,155 | 25 | 11 | 8.71 | 5.29–12.12 | 17.41 | 12.59–22.24 |
2012 | 263,104 | 266,577 | 14 | 13 | 5.25 | 2.50–8.00 | 10.50 | 6.61–14.39 |
2013 | 240,975 | 243,279 | 27 | 9 | 11.1 | 6.91–15.28 | 22.20 | 16.28–28.12 |