Table 1.
Demographic characteristics of reported scrub typhus cases in mainland China, 2006–2018.
| Parameters | Cases | Incidence per 100,000 | Proportion | Male% vs. Female% | P value |
|---|---|---|---|---|---|
| Total | 142,849 | 10.66 | 100.00 | 50:50 | |
| Year | |||||
| 2006 | 1244 | 0.09 | 0.87 | 51:49 | |
| 2007 | 1332 | 0.10 | 0.93 | 53:47 | |
| 2008 | 2592 | 0.19 | 1.81 | 53:47 | |
| 2009 | 3235 | 0.24 | 2.26 | 51:49 | |
| 2010 | 4085 | 0.30 | 2.86 | 50:50 | |
| 2011 | 6020 | 0.45 | 4.21 | 48:52 | |
| 2012 | 8921 | 0.66 | 6.25 | 47:53 | |
| 2013 | 11,104 | 0.82 | 7.77 | 44:56 | |
| 2014 | 16,032 | 1.19 | 11.22 | 45:55 | |
| 2015 | 17,280 | 1.28 | 12.10 | 46:54 | |
| 2016 | 21,691 | 1.60 | 15.18 | 46:54 | |
| 2017 | 22,556 | 1.62 | 15.79 | 46:54 | |
| 2018 | 26,757 | 1.93 | 18.73 | 46:54 | |
| Age | |||||
| 0–9 | 11,702 | 7.99 | 8.19 | 58:42 | |
| 10–19 | 4962 | 2.84 | 3.47 | 64:36 | |
| 20–29 | 7593 | 3.32 | 5.32 | 52:48 | |
| 30–39 | 12,811 | 5.95 | 8.97 | 53:47 | |
| 40–49 | 24,753 | 10.75 | 17.33 | 47:53 | |
| 50–59 | 32,784 | 20.48 | 22.95 | 42:58 | |
| 60–69 | 29,609 | 29.67 | 20.73 | 42:58 | |
| ≥ 70 | 18,635 | 26.55 | 13.05 | 42:58 | |
| Gender | < 0.05# | ||||
| Male | 66,481 | 9.68 | 46.54 | – | |
| Female | 76,368 | 11.70 | 53.46 | – | |
| Sex ratio | 0.87 | – | – | ||
| Occupation | |||||
| Farmers | 108,880 | – | 76.22 | 42:58 | |
| Workers | 6042 | – | 4.23 | 59:41 | |
| Students | 5774 | – | 4.04 | 65:35 | |
| Preschoolers | 9116 | – | 6.38 | 63:37 | |
| The unemployed and the retired | 9082 | – | 6.36 | 42:58 | |
| Others | 3955 | – | 2.77 | 56:44 | |
| Geographic area* | < 0.001# | ||||
| Rural | 123,789 | 18.36 | 88.00 | 43:57 | |
| Urban | 17,090 | 2.57 | 12.00 | 52:48 | |
#P value calculated by use of χ2 test.
*Two columns (Rural and Urban) do not add up to equal the total because of missing data