Pertussis - number of reported cases in Chad
Chad: Pertussis - number of reported cases was 5,898 in 1998. ◆ Volatile
Pertussis - number of reported cases in Chad, 1974–1998
Source: World Health Organization, Global Health Observatory.
Analysis
In 1998, pertussis - number of reported cases in Chad stood at 5,898.
That represents a change of up 7.3% on the previous year and up 156.1% over ten years.
Over the whole period, pertussis - number of reported cases in Chad peaked at 11,999 in 1976 and was at its lowest, 273, in 1982.
Chad ranks 9th of 210 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Pertussis - number of reported cases in Chad, year by year
| Year | Value | Change |
|---|---|---|
| 1974 | 5,498 | — |
| 1975 | 8,319 | +51.3% |
| 1976 | 11,999 | +44.2% |
| 1977 | 5,930 | -50.6% |
| 1978 | 2,366 | -60.1% |
| 1982 | 273 | -88.5% |
| 1983 | 2,288 | +738.1% |
| 1984 | 2,532 | +10.7% |
| 1985 | 1,496 | -40.9% |
| 1986 | 2,303 | +53.9% |
| 1995 | 5,745 | +149.5% |
| 1996 | 5,004 | -12.9% |
| 1997 | 5,498 | +9.9% |
| 1998 | 5,898 | +7.3% |
Biggest year-on-year movements
Years where Pertussis - number of reported cases in Chad changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1983 | +738.1% | 273 | 2,288 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 6,822 | 2,366 | 11,999 | 5 |
| 1980s | 1,778 | 273 | 2,532 | 5 |
| 1990s | 5,536 | 5,004 | 5,898 | 4 |
Countries ranked near Chad
More health data for Chad
- Un projection of annual infant deaths, annual growth rate -0.9964 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.6578 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,071 deaths per 1,000 people (2090)
- Number of infants who die before age 1 41,435 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 245 (2025)
- Population ages 00-04, female, annual growth rate 3.76 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0.0001 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0898 units per person (2025)
- Population ages 00-04, male, annual growth rate 3.77 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0.0001 units per US$ of GDP (2025)
Frequently asked questions
- What is pertussis - number of reported cases in Chad?
- Pertussis - number of reported cases in Chad was 5,898 in 1998, according to World Health Organization, Global Health Observatory.
- What is the highest pertussis - number of reported cases recorded in Chad?
- The highest recorded value was 11,999 in 1976.
- What is the lowest pertussis - number of reported cases recorded in Chad?
- The lowest recorded value was 273 in 1982.
- How does Chad rank for pertussis - number of reported cases?
- Chad ranks 9th out of 210 countries with data for 1998.
- Is pertussis - number of reported cases rising or falling in Chad?
- Over the last ten years it is up 156.1%. The long-run trend across the full record is volatile.
- Where does this Chad data come from?
- The figures come from World Health Organization, Global Health Observatory, published as part of Pertussis - number of reported cases. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 14 observations, free to reuse under CC BY-NC-SA 3.0 IGO (WHO).