Table 1.
Demographic and distributive features of scarlet fever in mainland China from 2011 to 2017.
| Variable | Total | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|---|
| N = 400,691 (%) | n = 63,878 (%) | n = 46,459 (%) | n = 34,207 (%) | n = 54,247 (%) | n = 68,249 (%) | n = 59,282 (%) | n = 74,369 (%) | |
| Sex | ||||||||
| Male | 245,777 (61.34) | 39,826 (62.35) | 29,039 (62.50) | 20,736 (60.62) | 32,932 (60.71) | 41,502 (60.81) | 36,390 (61.38) | 45,352 (60.98) |
| Female | 154,914 (38.66) | 24,052 (37.65) | 17,420 (37.50) | 13,471 (39.38) | 21,315 (39.29) | 26,747 (39.19) | 22,892 (38.62) | 29,017 (39.02) |
| Age, years | ||||||||
| 0–9 | 371,968 (92.83) | 58,825 (92.09) | 41,723 (89.80) | 31,268 (91.41) | 50,348 (92.81) | 63,963 (93.72) | 55,589 (93.77) | 70,252 (94.46) |
| 10–19 | 24,727 (6.17) | 4,401 (6.89) | 4,082 (8.79) | 2,468 (7.21) | 3,321 (6.12) | 3,710 (5.44) | 3,147 (5.31) | 3,598 (4.84) |
| 20–29 | 2,440 (0.61) | 437 (0.68) | 436 (0.94) | 287 (0.84) | 357 (0.66) | 335 (0.49) | 319 (0.54) | 269 (0.36) |
| 30–39 | 914 (0.23) | 112 (0.18) | 125 (0.27) | 114 (0.33) | 135 (0.25) | 137 (0.20) | 139 (0.23) | 152 (0.20) |
| 40–49 | 346 (0.09) | 57 (0.09) | 52 (0.11) | 34 (0.10) | 51 (0.09) | 55 (0.08) | 43 (0.07) | 54 (0.07) |
| 50–59 | 170 (0.04) | 27 (0.04) | 22 (0.05) | 25 (0.07) | 20 (0.04) | 31 (0.05) | 28 (0.05) | 17 (0.02) |
| ≥60 | 126 (0.03) | 19 (0.03) | 19 (0.04) | 11 (0.03) | 15 (0.03) | 18 (0.03) | 17 (0.03) | 27 (0.04) |
| Occupation | ||||||||
| Children in kindergarten | 168,601 (42.08) | 25,357 (39.70) | 18,956 (40.80) | 13,303 (38.89) | 21,476 (39.59) | 29,014 (42.51) | 26,283 (44.34) | 34,212 (46.00) |
| Students | 151,778 (37.88) | 25,809 (40.40) | 17,958 (38.65) | 13,352 (39.03) | 21,912 (40.39) | 25,299 (37.07) | 21,195 (35.75) | 26,253 (35.30) |
| Scattered children | 75,810 (18.92) | 11,822 (18.51) | 8,698 (18.72) | 7,040 (20.58) | 10,252 (18.90) | 13,337 (19.54) | 11,251 (18.98) | 13,410 (18.03) |
| Farmers | 1,503 (0.38) | 246 (0.39) | 257 (0.55) | 196 (0.57) | 214 (0.39) | 234 (0.34) | 188 (0.32) | 168 (0.23) |
| Housework and unemployment | 903 (0.23) | 142 (0.22) | 150 (0.32) | 101 (0.30) | 143 (0.26) | 127 (0.19) | 99 (0.17) | 141 (0.19) |
| Workers | 455 (0.11) | 80 (0.13) | 78 (0.17) | 60 (0.18) | 71 (0.13) | 60 (0.09) | 65 (0.11) | 41 (0.06) |
| Others | 1,641 (0.41) | 422 (0.66) | 362 (0.78) | 155 (0.45) | 179 (0.33) | 178 (0.26) | 201 (0.34) | 144 (0.19) |