Table 1.
The demographic characteristics of scarlet fever cases in Chongqing, 2011–2019
| Year | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Gender | ||||||||||
| Male | 287 | 269 | 197 | 232 | 493 | 295 | 312 | 421 | 491 | 2997 |
| Female | 169 | 178 | 144 | 169 | 323 | 189 | 242 | 313 | 349 | 2076 |
| Sex ratio | 1.70 | 1.51 | 1.37 | 1.37 | 1.53 | 1.56 | 1.29 | 1.35 | 1.41 | 1.44 |
| Age | ||||||||||
| 0–2 | 42 | 45 | 39 | 44 | 60 | 46 | 45 | 63 | 50 | 434 |
| 3–9 | 340 | 326 | 274 | 315 | 683 | 398 | 470 | 631 | 716 | 4153 |
| 10–14 | 48 | 64 | 21 | 38 | 53 | 32 | 33 | 33 | 58 | 380 |
| ≥15 | 26 | 12 | 7 | 4 | 20 | 8 | 6 | 7 | 16 | 106 |
| Occupation | ||||||||||
| Scattered childrena | 74 | 75 | 69 | 57 | 92 | 66 | 69 | 106 | 77 | 685 |
| Kindergarten Children | 157 | 153 | 137 | 160 | 375 | 234 | 255 | 329 | 360 | 2160 |
| Students | 206 | 214 | 131 | 181 | 337 | 179 | 225 | 295 | 398 | 2166 |
| Others | 19 | 5 | 4 | 3 | 14 | 5 | 5 | 4 | 5 | 62 |
a
Scattered children refer to children who do not reach the age of 3 years old to go kindergarten, or are taken care of by their family members.