How many years of comparable data are there for Nigeria and Sierra Leone?

28 years are reported by both, from 1990 to 2023.

Where does this data come from?

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

Nigeria vs Sierra Leone: Neonatal tetanus - number of reported cases, per square kilometre

Nigeria

0.0001 units per square kilometre

in 2023

Sierra Leone

0.0001 units per square kilometre

in 2023

Nigeria rank

30th

Sierra Leone rank

32nd

Neonatal tetanus - number of reported cases, per square kilometre over time

Nigeria
Sierra Leone

How they compare

Nigeria currently reports 0.0001 units per square kilometre against 0.0001 units per square kilometre in Sierra Leone, a difference of 0 units per square kilometre.

That makes Nigeria's figure about 1.1 times Sierra Leone's.

The two have swapped places 12 times across 28 shared years of data; in 1990 it was Nigeria ahead.

Nigeria ranks 30th and Sierra Leone ranks 32nd of 204 countries.

Across the 4 decades both report, Nigeria averaged higher in 2 and Sierra Leone in 2.

Head to head by decade

Decade	Nigeria	Sierra Leone	Difference	Ahead
1990s	0.001 units per square kilometre	0.0006 units per square kilometre	0.0004 units per square kilometre	Nigeria
2000s	0.0011 units per square kilometre	0.0005 units per square kilometre	0.0006 units per square kilometre	Nigeria
2010s	0.0002 units per square kilometre	0.0003 units per square kilometre	0.0001 units per square kilometre	Sierra Leone
2020s	0.0001 units per square kilometre	0.0001 units per square kilometre	0 units per square kilometre	Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher neonatal tetanus - number of reported cases, per square kilometre, Nigeria or Sierra Leone?: Nigeria, at 0.0001 units per square kilometre against 0.0001 units per square kilometre in Sierra Leone as of 2023.
What is the difference in neonatal tetanus - number of reported cases, per square kilometre between Nigeria and Sierra Leone?: 0 units per square kilometre, with Nigeria ahead.
How many years of comparable data are there for Nigeria and Sierra Leone?: 28 years are reported by both, from 1990 to 2023.
How do Nigeria and Sierra Leone rank globally for neonatal tetanus - number of reported cases, per square kilometre?: Nigeria ranks 30th and Sierra Leone ranks 32nd of 204 countries.
Where does this data come from?: Statizoid (derived), published as Neonatal tetanus - 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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Nigeria vs Sierra Leone: Neonatal tetanus - number of reported cases, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 23 September 2026, from https://health.statizoid.com/compare/neonatal-tetanus-number-of-reported-cases-per-square-kilometre/nigeria/sierra-leone/

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<a href="https://health.statizoid.com/compare/neonatal-tetanus-number-of-reported-cases-per-square-kilometre/nigeria/sierra-leone/">Nigeria vs Sierra Leone: Neonatal tetanus - number of reported cases, per square kilometre</a> — Statizoid

About this data

Indicator: Neonatal tetanus - 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, 7,318 data points, 1974–2023
Last refreshed: 10 September 2026

Neonatal tetanus - 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.