Tuberculosis (TB)

Country data by WHO Region

Explanatory notes

Country-specific data grouped by WHO region. For each country we present:

  • Estimated burden of TB in 1990 (baseline year for MDG) and 2003 (the latest year covered by this report). Estimates of TB include incidence, prevalence and death rates.
  • Population, TB notifications (numbers and rates), detection rates (countrywide and under DOTS), DOTS coverage and percentage of pulmonary cases that were smear-positive (DOTS and non-DOTS) in 2003.
  • Treatment outcomes for cases registered in 2002 – the new smear-positive cohort for both DOTS and (where available) non-DOTS programmes, and all re-treatment cases (taken together, where available) from DOTS programmes.
  • Treatment outcomes for specific re-treatment cohorts from DOTS programmes in 2002 – relapse, after-failure and after-default cohorts.
  • Trends in DOTS treatment success (1994–2002) and DOTS case detection (1995–2003).
  • Age and sex distribution (numbers) of new smear-positive notifications from DOTS and non-DOTS programmes.
  • Age and sex rates of new smear-positive notifications countrywide.
  • Notifications (numbers and rates) of TB (all forms) since 1980.
  • Notifications (numbers and rates) of new smear-positive cases since 1993.
  • Country notes: remarks from respondents that may help to explain data in selected countries’ reports.

Notation for 1st table

Country data … estimated burden of TB

See Methods section for information on how estimates are derived.

“Incl. HIV+” means including HIV+ TB cases; “Excl. HIV+” means excluding HIV+ TB cases.

Rate: the number per 100 000 population. (For incidence and death rates, the number represents events occurring annually.)

Notation for 2nd table

Country data … notification, detection and DOTS coverage, 2003

Pop thousands: the population of the country or territory, expressed in thousands, from the United Nations Population Division, World Population Prospects, 2002 revision.

All cases, country, number a: the total number of TB cases according to the country’s count.

All cases, WHO, number b: the total number of TB cases notified to WHO (WHO definition of a TB case notification, which includes new and relapse cases and, for the WHO European region only, cases with previous history unknown).

All cases, rate: cases notified to WHO per 100 000 population.

New cases, smear-positive, rate: per 100 000 population.

New cases, pulm confirmed: new pulmonary laboratory-confirmed cases.

Re-treatment cases: see definitions in Methods section. “Other” re-treatment includes cases that were classified as re-treatment but were not specified as relapse, after-failure or after-default.

Other, number: TB cases that were not classified as new or re-treatment. These cases plus re-treatment cases other than relapse cases make up the gap (if any) between the country’s count of TB cases and WHO notifications.

Detection rate, all cases: the proportion of all estimated cases (all forms) that were notified.

Detection rate, new ss+: the proportion of estimated new smear-positive cases that were notified.

DOTS % of pop: the percentage of the population living in geographical areas nominally serviced by health facilities implementing DOTS.

DOTS, DDR: the new smear-positive detection rate of DOTS programmes.

DOTS, % of pulm. cases ss+: the percentage of new pulmonary cases in DOTS programmes that are smear-positive.

Notation for 3rd table

Country data … treatment outcomes for cases registered in 2002

Number of cases notified: the number of new smear-positive cases notified in 2002 and representing, in theory, a cohort of cases for which treatment outcomes should be monitored.

Number of cases registered: the number of new smear-positive cases ultimately reported as constituting the cohort for treatment outcome monitoring which, ideally, should be close the number of cases initially notified (see Methods section).

% of notif registered: the percentage of notified cases that was ultimately represented by the number of cases registered

% not eval: the difference between the number registered and the sum of the six mutually exclusive outcomes (cured, completed, died, failed, defaulted, transferred-out, see definitions in the Methods section).

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