influenza: An acute viral infection of the respiratory tract, occurring in isolated cases, in epidemics, or in pandemics; it is caused by serologically different strains of viruses (influenzaviruses) designated A, B, and C, has a 3-day incubation period, and usually lasts for 3 to 10 days. It is marked by inflammation of the nasal mucosa, pharynx, and conjunctiva; headache; myalgia; often fever, chills, and prostration; and occasionally involvement of the myocardium or central nervous system.
| Name | J10_INFLUENZA |
|---|---|
| Long name | All influenza |
| Hospital Discharge registry | ICD-10: J11/J10/J09, ICD-9: 487, ICD-8: 47[0-4] |
| Cause of Death registry | ICD-10: J11/J10/J09, ICD-9: 487, ICD-8: 47[0-4] |
| Level in the ICD-hierarchy | 3 |
| First defined in version | DF2 |
| All | Female | Male | |
|---|---|---|---|
| Number of individuals | 4262 | 1853 | 2409 |
| Unadjusted prevalence (%) | 1.96 | 1.51 | 2.56 |
| Mean age at first event (years) | 49.84 | 54.39 | 46.34 |
| Case fatality at 5-years (%) | 4.55 | 3.89 | 5.06 |
| All | Female | Male | |
|---|---|---|---|
| Median nb. of events per indiv. | 1.0 | 1.0 | 1.0 |
| Recurrence at 6 months (%) | 2.70 | 3.18 | 2.32 |
before All influenza
after All influenza
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