How many years of comparable data are there for Kenya and Sri Lanka?

29 years are reported by both, from 1974 to 2021.

Where does this data come from?

Statizoid (derived), published as Pertussis - number of reported cases, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Kenya vs Sri Lanka: Pertussis - number of reported cases, per square kilometre

Kenya

0 units per square kilometre

in 2021

Sri Lanka

0 units per square kilometre

in 2023

Kenya rank

113th

Sri Lanka rank

115th

Pertussis - number of reported cases, per square kilometre over time

Kenya
Sri Lanka

How they compare

Kenya currently reports 0 units per square kilometre against 0 units per square kilometre in Sri Lanka, a difference of 0 units per square kilometre.

The two have swapped places 4 times across 29 shared years of data; in 1974 it was Kenya ahead.

Kenya ranks 113th and Sri Lanka ranks 115th of 204 countries.

Across the 6 decades both report, Kenya averaged higher in 4 and Sri Lanka in 2.

Head to head by decade

Decade	Kenya	Sri Lanka	Difference	Ahead
1970s	0.0249 units per square kilometre	0.0146 units per square kilometre	0.0103 units per square kilometre	Kenya
1980s	0.057 units per square kilometre	0.0043 units per square kilometre	0.0528 units per square kilometre	Kenya
1990s	0.0424 units per square kilometre	0.0022 units per square kilometre	0.0402 units per square kilometre	Kenya
2000s	0.0004 units per square kilometre	0.0014 units per square kilometre	0.0009 units per square kilometre	Sri Lanka
2010s	0 units per square kilometre	0.0005 units per square kilometre	0.0005 units per square kilometre	Sri Lanka
2020s	0 units per square kilometre	0 units per square kilometre	0 units per square kilometre	Kenya

Averages of every year both report within each decade.

Frequently asked questions

Which has higher pertussis - number of reported cases, per square kilometre, Kenya or Sri Lanka?: Kenya, at 0 units per square kilometre against 0 units per square kilometre in Sri Lanka as of 2021.
What is the difference in pertussis - number of reported cases, per square kilometre between Kenya and Sri Lanka?: 0 units per square kilometre, with Kenya ahead.
How many years of comparable data are there for Kenya and Sri Lanka?: 29 years are reported by both, from 1974 to 2021.
How do Kenya and Sri Lanka rank globally for pertussis - number of reported cases, per square kilometre?: Kenya ranks 113th and Sri Lanka ranks 115th of 204 countries.
Where does this data come from?: Statizoid (derived), published as Pertussis - number of reported cases, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Kenya vs Sri Lanka: Pertussis - number of reported cases, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 11 September 2026, from https://health.statizoid.com/compare/pertussis-number-of-reported-cases-per-square-kilometre/kenya/sri-lanka/

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<a href="https://health.statizoid.com/compare/pertussis-number-of-reported-cases-per-square-kilometre/kenya/sri-lanka/">Kenya vs Sri Lanka: Pertussis - number of reported cases, per square kilometre</a> — Statizoid

About this data

Indicator: Pertussis - number of reported cases, per square kilometre
Unit: units per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 205 places, 7,899 data points, 1974–2023
Last refreshed: 01 September 2026

Pertussis - number of reported cases divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.