Table 2.
Hospitalization status of pertussis cases in different groups
| Outpatient | Inpatient | χ 2 | P value* | |
|---|---|---|---|---|
| (total n = 2029) | (total n = 172) | |||
| Age (years), M [IQR] | 6 [4–7] | 0 [0–5] | < 0.001※ | |
| Gender | 10.067 | 0.002 | ||
| Male | 1,139(56.1%) | 75(43.6%) | ||
| Female | 890(43.9%) | 97(56.4%) | ||
| Age group | 324.107 | < 0.001 | ||
| 0–2 months | 42(2.1%) | 48(27.9%) | ||
| 3–5 months | 117(5.8%) | 29(16.9%) | ||
| 6–12 months | 96(4.7%) | 10(5.8%) | ||
| 1–4 years | 361(17.8%) | 29(16.9%) | ||
| 5–9 years | 1,271(62.6%) | 45(26.2%) | ||
| 10–14 years | 142(7.0%) | 11(6.4%) | ||
| Season | 24.232 | < 0.001 | ||
| Spring | 1,021(50.3%) | 79(45.9%) | ||
| Summer | 416(20.5%) | 28(16.3%) | ||
| Autumn | 54(2.7%) | 16(9.3%) | ||
| Winter | 538(26.5%) | 49(28.5%) |
*Chi-square test
※Mann-Whitney U test