Breast cancer statistics tell a contrasting story of hope and hardship in our region. While Africa has the lowest incidence rates in the world, it paradoxically records the highest mortality. This reality bears directly on our Maghreb countries, where the figures describe a daily battle fought by thousands of women.
Breast cancer statistics: the African and Maghreb picture
Africa in the face of breast cancer
In 2022, 38 women in every 100,000 were diagnosed with breast cancer and 19 in every 100,000 tragically lost their lives to the disease in Africa. These breast cancer statistics conceal considerable disparities between regions: incidence rates vary widely, from 61 per 100,000 in Algeria to 7 per 100,000 in Sierra Leone.
More alarming still, some 135,000 women could lose their lives to breast cancer by 2040 in sub-Saharan Africa if urgent measures are not taken. These projections underline how pressing the need is to improve health systems across our continent.
Maghreb specifics
In our region, breast cancer statistics show some striking features. The three Maghreb countries (Tunisia, Algeria and Morocco) recorded very similar age-standardised cancer incidence rates, ranging from 115.4/100,000 inhabitants in Tunisia and 130.8/100,000 inhabitants in Algeria to 139.6/100,000 inhabitants in Morocco.
As for mortality, the rates were 71.3/100,000 in Tunisia and 73.3/100,000 in Algeria respectively, while in Morocco the rate stood at 86.9/100,000.
| Country | Standardised incidence (breast cancer, /100,000) | Standardised mortality (breast cancer, /100,000) |
|---|---|---|
| Tunisia | 115.4/100,000 | 71.3/100,000 |
| Algeria | 130.8/100,000 | 73.3/100,000 |
| Morocco | 139.6/100,000 | 86.9/100,000 |
Incidence and how breast cancer statistics are changing
Recent trends in the Maghreb
In Tunisia, breast cancer statistics show a worrying trend. In 2023, 22,101 new cancer cases across all sites were recorded, with breast cancer the leading cancer among women. Breast cancer accounts for 33% of cancers in women, with an incidence of 32/100,000 women.
The projections are alarming: the number of new cases in 2040 would be more than double that of 2020, at 41,353 cases. This increase is explained by rising life expectancy, by smoking, which has reached worrying levels among men, by the abandonment of traditional eating habits in favour of a Western diet rich in fats, and by a trend towards an increasingly sedentary lifestyle.
Breast cancer statistics in Algeria reveal a critical situation. Algeria recorded 15,000 new cases in 2021, with close to 3,500 deaths a year. One positive development does deserve to be highlighted, however: today, 50% of cases reach health facilities with cancers at stages 1 and 2, which improves the chances of survival and recovery.
In Morocco, breast cancer statistics place this disease in first position. In Morocco, breast cancer accounts for 19.2% of all cancers, followed by lung cancer at 12.3% and colorectal cancer at 7.8%. More specifically, breast cancer represented 20% of all cancers recorded across both sexes and 35.8% of the cases recorded in women.
Factors behind the trend
The rise in breast cancer statistics in our region is explained by several factors:
- Epidemiological transition: the abandonment of traditional ways of life
- Growing urbanisation and dietary change
- Better diagnosis: more cases detected
- An ageing population
- The adoption of Western lifestyles
Survival statistics: hope despite the challenges
Prognosis by region
Survival statistics in Morocco show significant progress. Overall survival at one year was 97.1%, 89.2% at 3 years and 80.6% at 5 years in Rabat. These figures, though lower than in developed countries, are evidence of improved care.
In our study population, overall 5-year survival for breast cancer was 80.6%, which is lower than the rates found in certain studies from developed countries (86.6 to 89.7%), but remains within an acceptable range for a developing country.
| Follow-up period | Overall survival in Rabat (Morocco) |
|---|---|
| At 1 year | 97.1% |
| At 3 years | 89.2% |
| At 5 years | 80.6% |
In Tunisia, the statistics vary from region to region. Ten-year survival is 70% where there is no lymph node involvement, and 25 to 30% where histological lymph node invasion is present. These figures underline how crucial early diagnosis is.
In Algeria, the statistics reveal considerable inequalities. Patients treated in specialised centres achieve better outcomes, but access to care remains problematic in some regions.
Comparison with sub-Saharan Africa
In the United States, among women newly diagnosed with breast cancer, the 5-year survival rate has climbed to 89%; that rate is closer to 40% in developing countries. This difference underlines the gap in available resources.
In sub-Saharan Africa, an estimated 94,000 women are diagnosed with breast cancer and 48,000 die from it every year, a mortality rate of more than 50%.
Prognostic factors: what shapes breast cancer statistics
Age and diagnosis
In our region, age at diagnosis has a considerable influence on the statistics. The 40-50 age group accounts for the majority of women affected by this disease. The median age at the time of diagnosis of this cancer was 51.6 years in Morocco.
This earlier onset compared with Western countries affects survival statistics, since cancers in young women are often more aggressive.
Stage at diagnosis
Stage remains the main prognostic factor. The statistics show that:
- Early stages (I-II): survival > 90%
- Advanced stages (III): survival 60-80%
- Metastatic stages (IV): survival < 25%
Molecular factors
The study of protein profiles by immunohistochemistry has revealed the presence of four molecular groups, of which the most dominant is the Luminal B group (32.5%) in Tunisia. These molecular characteristics have a direct influence on survival statistics.
Recurrence and long-term breast cancer statistics
Patterns of recurrence
The statistics show that most recurrences occur in the first few years. About 75% of recurrences take place within the 5 years following the initial diagnosis. This critical period calls for particularly close follow-up.
Risk factors for recurrence
Patients with triple-negative tumours show a high rate of recurrence and death in Algeria. These particular subtypes call for specific therapeutic approaches.
Age remains decisive: young women are at higher risk of recurrence but, paradoxically, they often respond better to chemotherapy treatments.
Infrastructure and access to care: the impact on the statistics
Structural realities
Only 5 of the 47 countries in the African region have set up organised breast cancer screening programmes. This limitation partly explains the unfavourable statistics observed.
In terms of equipment, 16 countries out of 42 (38%) have no radiotherapy equipment at all in Africa. This shortfall has a direct impact on survival statistics.
The situation in the Maghreb
Our region presents a contrasting picture:
- Morocco: 6 oncology centres
- Algeria: 3 carcinology centres
- Tunisia: 1 institute specialising in cancer management
These limited facilities explain certain disparities in breast cancer statistics between our countries.
Diagnostic challenges and their impact on the statistics
Diagnostic delays
The average time to diagnosis was 10 months in Morocco, a considerable delay that has a negative impact on survival statistics. This delay is explained by:
- A lack of information among the population
- Limited access to specialised centres
- Insufficient screening equipment
Stages at diagnosis
The majority of cases reach health facilities with cancer at stage 3 and often at stage 4 in Algeria, which explains the high mortality statistics in our region.
Positive developments in breast cancer statistics
Recent improvements
Despite the challenges, certain positive developments deserve to be highlighted:
These efforts have made it possible to diagnose 64.5% of breast cancer cases at stages I and II and to deliver more effective treatment. This improvement is directly reflected in the survival statistics.
Greater awareness is bearing fruit: 50% of cases now reach health facilities with cancers at stages 1 and 2, compared with a majority at advanced stages previously.
Promising initiatives
Awareness campaigns such as Octobre Rose (Pink October) are helping to improve the statistics. Training primary healthcare staff and increasing the number of specialised centres promise a positive change in the figures in the years to come.
International comparisons and outlook
The gap with developed countries
The probability of being diagnosed with breast cancer is 50% lower among women in countries with the lowest Human Development Index (HDI) than among those in countries with the highest HDI. Paradoxically, they are far more likely to die from the disease because of late diagnosis or inadequate access to quality treatment.
Targets for improvement
The aim of the WHO's new global breast cancer initiative is to reduce breast cancer mortality worldwide by 2.5% a year, and thereby to avert 2.5 million breast cancer deaths between 2020 and 2040.
Breast cancer statistics: grounds for hope
Therapeutic progress
The statistics are gradually improving thanks to therapeutic advances. Resources have been committed and therapeutic progress made in Algeria, notably with the introduction of targeted therapies such as Herceptin for HER2-positive cancers.
Better screening
Screening coverage rates for the major cancers are still low in the Maghreb, as illustrated by the levels observed in Tunisia for breast cancer, at 10%. This situation is improving gradually, however, as awareness programmes multiply.
How the statistics may evolve
Demographic projections
Demographic change has a direct influence on breast cancer statistics. An ageing population and growing urbanisation point to an increase in cases over the coming decades.
Emerging technologies
The introduction of new diagnostic and therapeutic technologies should improve survival statistics. Artificial intelligence for reading mammograms and telemedicine for rural areas are promising avenues.
Training and awareness
Better continuing medical education and targeted awareness campaigns will contribute to improved statistics. The goal is to reach international standards of care.
Towards better breast cancer statistics
Breast cancer statistics in the Maghreb and Africa reveal a contrasting situation. Despite considerable challenges tied to infrastructure and limited resources, signs of improvement are gradually emerging.
The rise in diagnosis at early stages, greater public awareness and investment in health infrastructure are all contributing to a positive change in the figures. Sustained efforts remain necessary, however, to reach international standards.
Every improvement in the statistics represents lives saved and families spared. In this battle against breast cancer, the figures are not merely data: they represent the hope of thousands of women in our region.
The objective remains clear: to transform these statistics by reducing incidence through prevention and improving survival through early diagnosis and treatment. It is a collective challenge that calls for the commitment of every public health actor in our region.
