Variable Definitions

Comprehensive definitions of health indicators, data collection methodology, and demographic focus areas

School Health Indicators

Indicators focused on children in schools (ages 5-18)

School Learner Screening Coverage

Percentage of schools in province

The percentage of schools in a province that received learner health screening through the Integrated School Health Programme (ISHP). This includes vision, hearing, oral health, and nutritional assessments.

Calculation

(Number of learners screened / Total number of learners enrolled) x 100

Data Source

NDOH District Health Information System (DHIS)

Coverage

2011-2024, all 9 provinces

School Learner Underweight Rate

Percentage of learners under 5 years who are underweight

The proportion of learners under 5 years of age classified as underweight based on weight-for-age z-scores. Underweight is defined as a weight-for-age z-score below -2 standard deviations from the WHO reference median.

Calculation

(Number of learners underweight / Number of learners weighed) x 100

Data Source

NDOH Integrated School Health Programme

Coverage

2011-2024, provincial and district level

Climate-Sensitive Health Indicators

Health outcomes linked to climate variability

Diarrhoea with Dehydration in Child Under 5 Years Incidence

Cases per 1,000 children per year

The incidence of diarrhoeal disease presenting with clinical dehydration in children under 5 years, a key climate-sensitive health outcome. Diarrhoeal disease incidence increases during heavy rainfall events (contaminated water sources) and during droughts (water scarcity and poor sanitation).

Target Population

Children under 5 years

Climate Linkage

Heavy rainfall and flooding increase waterborne pathogen exposure; drought reduces access to clean water

Child Under 5 Years Severe Acute Malnutrition (SAM) Incidence

Cases per 1,000 children per year

The incidence of severe acute malnutrition among children under 5 years, defined as weight-for-height z-score below -3 SD or bilateral oedema. Climate-driven food insecurity and drought conditions are major contributing factors.

Target Population

Children under 5 years

Climate Linkage

Drought conditions lead to crop failure and food insecurity; extreme heat affects food storage and safety

Maternal Mortality in Facility Ratio

Deaths per 100,000 live births

The number of maternal deaths occurring within health facilities per 100,000 live births. Extreme weather events can disrupt access to healthcare facilities, emergency obstetric services, and transport infrastructure.

Target Population

Pregnant women

Climate Linkage

Floods and storms disrupt healthcare access; heatwaves increase pregnancy complications

Mental Health Case Load

Average patients seen by a mental health professional

The mental health case load rate, reflecting the volume of mental health conditions managed at primary healthcare facilities. Climate-related disasters, displacement, and food insecurity are recognised drivers of mental health burden.

Target Population

General population

Climate Linkage

Extreme weather events, drought, and displacement increase stress, anxiety, and depressive disorders

EMS P1 Urban Response Under 30 Minutes

Percentage of cases

The proportion of Priority 1 (life-threatening) emergency calls in urban areas responded to within 30 minutes. Extreme weather events directly affect emergency response capability through road damage and increased demand.

Target Population

General population (urban)

Climate Linkage

Storms, floods, and extreme weather impair road infrastructure and increase demand for emergency services

EMS P1 Rural Response Under 60 Minutes

Percentage of cases

The proportion of Priority 1 (life-threatening) emergency calls in rural areas responded to within 60 minutes. Rural areas are disproportionately affected by extreme weather due to limited road infrastructure.

Target Population

General population (rural)

Climate Linkage

Floods and storms disproportionately affect rural roads; drought conditions increase fire-related emergencies in rural areas

Acknowledgements: Health data provided by the National Department of Health (NDOH) through the District Health Information System. Extreme weather event data provided by the South African Weather Service (SAWS). Historical climate indicators extracted from University of East Anglia, Norwich by Gemma Hickinbotham. Real-time weather data supplemented by the Open-Meteo API.

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