From: Increasing incidence of skin disorders in children? A comparison between 1987 and 2001
1987 | 2001 | ||||
---|---|---|---|---|---|
Incidence Rates | 95% Confidence Intervals | Incidence Rates | 95% Confidence Intervals | P-value | |
Age Categories | |||||
< 1 year | 352.1 | 321.0 – 385.5 | 460.8 | 441.0 – 481.3 | <0.001 |
1–4 years | 328.9 | 312.2 – 346.2 | 320.0 | 311.8 – 328.3 | 0.35 |
5 – 9 years | 340.3 | 325.4 – 355.7 | 273.7 | 267.1 – 280.5 | <0.001 |
10 – 14 years | 276.2 | 262.8 – 290.1 | 235.3 | 229.1 – 241.6 | <0.001 |
15 – 17 years | 319.0 | 302.5 – 336.3 | 266.9 | 258.3 – 275.7 | <0.001 |
Gender | |||||
Male | 315.9 | 305.5 – 326.5 | 279.2 | 274.2 – 284.3 | <0.001 |
Female | 319.0 | 308.3 – 330.0 | 296.2 | 290.8 – 301.5 | <0.002 |
Urbanization | |||||
< 30,000 | 307.8 | 295.3 – 320.6 | 324.3 | 318.4 – 330.4 | 0.02 |
30,000 – 50,000 | 315.4 | 303.1 – 328.1 | 253.9 | 246.0 – 261.9 | <0.001 |
> 50,000 | 349.9 | 332.6 – 367.9 | 258.1 | 251.9 – 264.3 | <0.001 |
Big Cities | 289.1 | 265.5 – 314.2 | 285.8 | 271.7 – 300.5 | 0.82 |
Region | |||||
Northern | 303.3 | 281.8 – 326.0 | 253.6 | 244.6 – 262.8 | <0.001 |
Central | 310.2 | 301.0 – 319.6 | 282.4 | 277.6 – 287.3 | <0.001 |
Southern | 342.7 | 327.1 – 358.8 | 314.6 | 307.4 – 321.8 | 0.001 |
Season | |||||
Winter | 305.8 | 290.4 – 321.8 | 279.4 | 272.2 – 286.8 | 0.003 |
Spring | 336.6 | 322.5 – 351.1 | 294.5 | 287.1 – 302.1 | <0.001 |
Summer | 319.3 | 302.9 – 336.4 | 292.5 | 285.1 – 300.0 | 0.004 |
Autumn | 304.9 | 291.1 – 319.2 | 272.7 | 265.8 – 279.8 | <0.001 |
SES | |||||
Class I | 305.0 | 289.3 – 321.2 | 265.2 | 258.6 – 271.9 | <0.001 |
Class II | 325.2 | 304.1 – 347.4 | 278.8 | 270.8 – 287.0 | <0.001 |
Class III | 264.2 | 232.2 – 299.4 | 299.0 | 284.4 – 314.0 | 0.06 |
Class IV | 340.9 | 322.1 – 360.6 | 299.5 | 283.6 – 316.1 | 0.001 |
Class V | 336.4 | 315.8 – 358.0 | 283.2 | 270.4 – 296.5 | <0.001 |
Ethnicity | |||||
Natives – Western Immigrants | 315.7 | 308.1 – 323.5 | 275.1 | 270.7 – 279.6 | <0.001 |
Non-Western Immigrants | 346.1 | 313.6 – 380.9 | 295.6 | 281.6 – 310.0 | 0.01 |
Total | 317.4 | 309.9 – 325.0 | 287.5 | 283.8 – 291.2 | <0.001 |