|
Rapid Health Assessment Protocols for Emergencies
Chapter 7 - Sudden population displacements
Purpose of assessment
The purpose of this rapid health assessment is to:
- describe the type, magnitude, and possible
evolution of the displacement;
- assess the health and nutritional impact of the displacement
on the displaced and host populations;
- initiate a health and nutrition surveillance system;
- assess the adequacy of existing response capacity and the
immediate additional needs; and
- recommend priority actions for rapid
response.
Background
People may be displaced from where they live by natural or
man-made disasters, force or the threat of force, or other pressures. The term
refugee refers to displaced persons who cross an international
border. The country to which they flee is referred to as the host
country. In contrast, internally displaced persons do not
cross an international border and remain within their country of origin.
Displaced persons may move as a large group over a short period
or move in small groups over months or years. Large concentrations of displaced
persons may be found in poor, peripheral, and under-served sections of large
cities. The sudden arrival of large numbers (sometimes hundreds of thousands)
can create a health emergency. This protocol addresses rapid health assessment
in all emergencies owing to sudden displacement of both refugees and internally
displaced persons.
The rapid health assessment has to include the host population
because of the additional stress that may be placed on local
organizations.
Conducting the assessment
The rapid assessment consists of:
- defining the area where the displaced are
located; - deciding what information to collect; - assessing health
status; - assessing environmental conditions; and - assessing local
response capacity and additional immediate needs.
Defining the area where the displaced are located
Displaced persons may be found:
- scattered in small groups along a stretch of
border, in many instances living with local villagers of the same ethnic group,
or even relatives;
- massed in a relatively well-defined area near a border;
- located in transit camps organized by local officials not far
from a border;
- clustered in small groups scattered along the coast of a host
country, having fled by boat; and
- grouped together in urban or peri-urban settings.
Before the field assessment, review any recent information
collected and compiled on the displaced group and the host areas by ministries
or response and recovery organizations based in the capital city. In addition,
determine whether there have been any preliminary requests, orders or actual
procurement of food, medical or other emergency supplies.
Deciding what information to collect
Before the assessment, investigators must decide what
information to collect, and prioritize it to ensure that the essential
information will be gathered if time or resources are inadequate. This
information may include:
- an estimate of population size and trends of
displacement; - the rates and the major causes of mortality; - the
existence of diseases of epidemic potential, such as measles, cholera, and
meningitis; - the major causes of morbidity; - the availability of food
and the nutritional situation; and - the populations basic
environmental needs, such as water, shelter, and sanitation
facilities.
A checklist will ensure that important data are not forgotten.
The sample checklist on page 60 is provided as an example.
Assessing health status
Assessing health status consists of collecting demographic and
background health information, and information on the three key indicators for a
displaced populations state of health: nutritional status, mortality and
morbidity.
Demographic characteristics
· The
following information should be collected:
- population size with age-sex breakdown
(e.g. <1, 1-4, 5-14, 15-44, 45-59, >60 years old);
- number of arrivals and departures per week;
- predicted number of future arrivals;
- ethnic composition and place of origin;
- identification of at-risk groups, (e.g. infants less than one
year, children less than five years, pregnant and lactating women, households
headed by women, unaccompanied children, disabled and wounded, elderly); and
- average family or household size.
· This information
is needed because:
- the total population is the
denominator for all death and morbidity rates, which might be estimated at later
stages;
- estimating population size makes calculating emergency
supplies possible; and
- a breakdown of the population by age and sex allows for the
targeting of special interventions (e.g. immunization and care for pregnant and
lactating women).
· Demographic
information can be obtained from:
- existing reliable census;
- registration records maintained by camp administrators, local
government officials, religious leaders, and others;
- interviews with leaders within the displaced groups;
- visual inspection during a walk through the area (This gives a
quick impression of sanitary conditions and population density. Note, however,
that it is unwise to base conclusions on visual impressions alone. Depending on
the time of day and cultural habits, the population may differ. For instance,
people may be gathering firewood away from the settlement);
- aerial photography and use of global positioning systems
(GPS); and
- a small survey. (In sampled dwellings, record the number of
family members, age and sex of each, and the number of pregnant and lactating
women. Calculate the average number of persons per visited dwelling, then the
total number of dwellings in the camp or settlement.)
Given that no rapid method is entirely reliable, a combination
of them and comparison of the resulting estimates should be used. As soon as
possible, ensure that a system for registering new arrivals is established.
Record the names of household heads, number of family members by age and sex,
former place and region of residence, and ethnic group, where applicable.
Background health information
· The following
information should be collected:
- main health, nutritional, and
psychosocial problems in place of origin and among host population;
- public health programme coverage in place of origin and among
host population (e.g. measles immunization);
- previous sources and types of health care, including
traditional medicine;
- availability of health workers in the displaced population;
- important health beliefs and traditions; and
- social organization.
· This information
is needed in order to:
- identify current health priorities for
immediate intervention; - identify potential health threats; - collect
baseline information for future monitoring; and - ensure appropriateness of
planned health interventions.
· Background health
information can be obtained from:
- documents and reports from the host
government ministry of health and universities, as well as international and
nongovernmental organizations (collect information on endemic diseases and
public health programmes in the displaced populations place of origin and
in the host area);
- interviews with community leaders, household heads, health
workers, and individuals; and
- development organizations, private companies, and missionaries
with experience with the displaced population.
Nutritional status
· The following
information should be collected:
- prevalence of acute protein-energy
malnutrition in children 6 to 59 months of age or 60 to 110 centimetres in
height; and
- prevalence of micronutrient
deficiencies.
· This information
is needed, in combination with information on food sources and security, to
design feeding interventions and to identify groups at nutritional
risk.
· Information on
nutritional status can be obtained from:
- anthropometric and micronutrient
deficiency screening on all newly arrived children (or a sample of children if
there are insufficient personnel, or too many new arrivals);
- inclusion in any household survey of an assessment of
nutritional status using anthropometric measures and micronutrient deficiency
screening;
- weight-for-height measurement1 and examination for
clinical signs of vitamin A, B and C deficiencies (see Chapter
8);
1 Mid-upper arm
circumference (MUAC), and QUAC (MUAC for height) can also be used, but are
considered less accurate than weight-for-height
measures.
-
review of local hospital records (e.g. admissions and deaths due to
malnutrition);
- interviews with resource people among the displaced (assess
food availability before displacement and the duration of the journey from place
of origin to the present site); and
- visual inspection, bearing in mind that it is unwise to base
conclusions about childhood nutritional status on visual impressions
alone.
Mortality
Death rates will be very difficult to calculate accurately in a
rapid health assessment, owing to the lack of time for collecting and analysing
information. Reliable death rates can be calculated only if:
- census information has already been systematically
collected by national authorities or other organizations that provides a total
population count by age and sex;
- the population remains static other than births and deaths
(there are few people joining or leaving the population)
- a mortality surveillance system is in place;
- the information is classified appropriately, e.g. in rational
age groups, independently for both sexes;
- mortality information is collected over a statistically valid
period of time (where mortality is very high, this period can be quite short -
where it is low, sporadic, or of uncertain causes, then this can be a very long
period);
- death rates are calculated by a national demographer or, if a
demographer is not available, an epidemiologist.
However, approximate death rates can still be estimated if only
a few of these conditions are not present. It may be possible to calculate:
crude death rate (number of deaths per 10000 people a day), age-specific death
rates (number of deaths per 10000 people of a given age group per day), and
cause-specific death rates (number of deaths from a given cause per 10000 people
a day).
· To calculate crude
death rate, age-specific death rates, and cause-specific death rates, the
following information should be collected:
- population numbers by sex and by
rational age groupings (e.g. < 1, 1-4, 5-14, 15-44, 45-59, > 60);
- number of deaths over a statistically valid time period (crude
death rate);
- number of deaths for relevant age groupings over a
statistically valid time period (age-specific death rates); and
- number of deaths and the expected causes of each death over a
statistically valid time period (cause-specific death
rates).
· This information
is needed because the crude death rate and the death rate in children less than
five years of age are important overall indicators of the populations
health. For any country in the world there is an estimate of the crude death
rate available. This figure should be noted by the rapid assessment team, and
compared with calculated death rates in given situations. Table 5 indicates the
degree of severity of different death rates, although the actual figures are
value judgements rather than scientific indicators.
· Information on
mortality can be obtained from:
- a system of mortality surveillance (a
sample morbidity and mortality weekly surveillance form is shown on page 61);
- designation of a single burial site for the camp or
settlement, monitored by 24-hour grave-watchers, and development of a verbal
autopsy procedure for expected causes of death using standard forms (Remember
that death registration may be incomplete if rations are reduced for a family
after a death is reported, because of the desire to retain rations);
- hospital records and records of organizations responsible for
burial;
- interviews with community leaders; and
- mandating registration of deaths, issuing shrouds to families
of the deceased to help ensure compliance, monitoring records of private burial
contractors, or employing volunteer community informants who report deaths for a
defined section of the population (e.g. 50
families).
Table 5. Degree of severity of
different death rates
|
Degree of severity |
Crude death rate (death/10 000/day) |
Under-five death rate (deaths/10 000/day)
| |
Normal or mildly elevated |
0.3-1.0 |
0.6-2.0 | |
Severe |
1.0-2.0 |
2.0-4.0 | |
Critical |
>2.0 |
>4.0 |
Morbidity
· The following
information should be collected:
- number of cases of various diseases,
including diseases that cause substantial morbidity, such as diarrhoea,
respiratory infections, and malaria, and diseases that may occur in large
epidemics, such as measles, cholera, and meningitis; and
- population size.
· Information on
morbidity can be obtained from:
- local hospital and clinic records;
- patient registers and records in camp or settlement clinics,
hospitals or feeding centres;
- interviews with resource people within the displaced
population (e.g. midwives and other health workers); and
- a simple morbidity surveillance system. (When deciding whether
a disease should be included in routine surveillance, consider the proportion of
all morbidity caused by the disease, the seriousness of the disease in terms of
the likelihood that it will result in death, and the likelihood that the disease
will spread rapidly and result in a large epidemic.)
Assessing environmental conditions
Two priorities should be borne in mind in environmental
assessment: shelter and water. Displaced persons can die quickly of exposure
without shelter in inhospitable climates and within a few days without adequate
water. To assist in setting priorities for public health programmes, information
should be gathered on a number of elements.
Water supply
Information is needed on the current sources of water supply,
the quantity, the quality, and the transport and storage capacity, including
storage in households.
Sanitation
Information is needed on current methods of excreta disposal,
the availability of soap, the presence of disease vectors, including rats, and
the adequacy of burial sites.
Material possessions of displaced persons
Information is needed on the amount of blankets and clothing,
shelter material, and domestic utensils (especially for preparing food and
collecting water), as well as livestock, funds and other possessions.
Characteristics of the location
Information is needed on the following:
- climate, including seasonal variations; -
access to location by road, rail, and air; - availability of land and extent
of crowding; - security against natural and man-made hazards; -
availability and proximity to building materials for shelter, and to fuel; -
soil topography and drainage; and - possibility of foraging for
foodstuffs.
Methods of collecting information
This assessment is largely carried out by visual inspection.
Interviews with local officials and technical specialists are useful. In some
instances, special surveys should be performed (e.g. investigations by
entomologists for local disease vectors and water engineers to assess water
resources).
Assessing local response capacity and immediate needs
Coordination
The information below should be obtained from national and
international organizations, United Nations organizations, and NGOs
working in the emergency-affected area:
· Who is in charge
of coordinating health, water, and sanitation activities? · Who supplies what services in these
sectors? · Who coordinates food delivery to
the area and its distribution to the affected population?
Food supplies and sources
Well-nourished people can last days without food; however,
already malnourished people may need food much sooner.
· Assess the
quantity and type of food available to the population. If food is already being
distributed, estimate the average number of calories received per capita for the
period for which food distribution records are available.
· Assess the quality of the food
available, its caloric and micronutrient content, and its acceptability to the
recipient population.
· Inspect local markets for food
availability and prices. Assess what foods are being traded and their exchange
value.
· Assess local, regional, and
national markets for availability of appropriate emergency foods.
· Include in any household
survey an estimate of food stores in each household, looking for obvious
inequalities between different families, ethnic or racial groups.
· Assess the cash and material
resources of the displaced population to estimate their local purchasing
power.
Feeding programmes
· Assess feeding programmes
(general ration for the entire population, selective feeding for those at
increased nutritional risk, and therapeutic feeding for severely malnourished
persons) set up by local officials, NGOs, church groups, local villagers, or
other groups (see Chapter 8).
· A detailed assessment of
feeding programmes could include admission criteria, figures for enrolment,
attendance and discharge, quantity and quality of food provided, managerial
competence, availability of water, utensils, and storage.
Health services and infrastructure
To assess health services and infrastructure available to the
displaced population, the following should be considered.
·
Access:
- access by the displaced population to
local pre-existing health facilities; and - ability of local health services
to absorb the influx of displaced persons.
·
Facilities:
- type of facilities available, i.e.
number of clinics, hospitals, and feeding centres;
- size, capacity, and type of structures (tent, local materials,
permanent structure) of health facilities set up specifically for displaced
population; and
- adequacy of health facilities water supply,
refrigeration facilities, and generators and fuel.
·
Personnel:
- type of health personnel and relevant
skills and experience present in the hosting area (include sanitary experts,
nutritionists, nurses, and doctors working in the private sector);
- health workers present among the displaced population,
including traditional healers, traditional midwives, doctors, and nurses; and
- availability of interpreters.
· Drugs and
vaccines:
- availability of essential drugs and
medical supplies; and - availability of essential vaccines and immunization
equipment.
· Non-food
items:
- availability of items needed to
address needs identified in the section above; - storage facilities for
vaccines (cold chain), food, and non-food items; and - transport, fuel, and
communications.
Presenting results
In presenting the results of your assessment, indicate the
following information.
· Summarize rapid
assessment findings, according to the headings listed in this
document.
· Estimate,
quantify, and prioritize needs for additional assistance, based on preliminary
findings (e.g. food, drugs, technical personnel, equipment for improving water
quality, and vector control measures).
· Prepare and convey
assessment findings to appropriate emergency health decision-makers at
subnational, national, and international levels.
|
Box 2. Sample checklist for rapid health assessment in sudden
population displacements
Characteristics of the population and location
Demographic characteristics
· Total population
size · Proportion less than and greater than
five years of age · Size of at-risk
groups · Average household or family
size
Background health information
· Main health and
nutritional problems before displacement ·
Coverage of public health programmes ·
Previous sources of medical care · Number and
type of health workers in population · Health
beliefs and traditions · Social
organization
Nutrition
· Protein-energy
malnutrition · Micronutrient
deficiencies
Mortality
· Crude death
rate · Age-specific death rates (less than
and greater than five years of age) ·
Cause-specific death rates
Morbidity
· Number of cases
(and rates) of specific diseases
Water and sanitation
· Sources · Quantity ·
Quality · Transport and storage · Excreta practices · Soap · Vectors,
including rats · Burial
sites
Material possessions
· Blankets and
clothing · Shelter · Domestic utensils · Livestock, money
Location
· Access · Amount of land ·
Other hazards · Building materials and
fuel · Climate · Topography and drainage
Response capacity
Coordination and services by existing organizations
Food available
· Access to local
supplies · Type of food · Quantity ·
Quality · Feeding
programmes
Health services available
· Access to and
capacity of local services · Health
personnel · Interpreters · Type of facilities · Type of structures · Water, refrigeration, and generators at
facilities · Drug and vaccine
supplies
Other materials available
Logistics
·
Transport · Fuel · Storage of food, vaccines, and other
supplies · Communication
|
____________
Box 3. Sample morbidity and mortality weekly surveillance
form
This form should be adapted for specific situations.
From: ___/___/___/ To:
___/___/___/ Town/Village/Settlement/Camp:____________
Population
|
Population at beginning of week |
| |
Births this week |
+ | |
Deaths this week |
- | |
Arrivals this week |
+ | |
Departures this week |
- | |
Estimated population at end of week |
| |
Total population under five years of age |
|
Mortality
|
Reported primary cause of death |
Female/age |
Male/age |
Total |
|
< 1 |
1-4 |
5-14 |
15-44 |
44-59 |
> 60 |
< 1 |
1-4 |
5-14 |
15-44 |
44-59 |
> 60 |
| |
diarrhoeal disease |
|
|
|
|
|
|
|
|
|
|
|
|
| |
respiratory disease |
|
|
|
|
|
|
|
|
|
|
|
|
| |
malnutrition |
|
|
|
|
|
|
|
|
|
|
|
|
| |
malaria |
|
|
|
|
|
|
|
|
|
|
|
|
| |
measles |
|
|
|
|
|
|
|
|
|
|
|
|
| |
trauma |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
other/unknown |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average crude rates (deaths/10 000 total population/day) |
| |
Average under-five year old death rates (deaths/10 000 total
under-fives/day) |
|
Morbidity
|
Primary symptom/diagnosis |
Female/age |
Male/age |
Total |
|
< 1 |
1-4 |
5-14 |
15-44 |
44-59 |
> 60 |
< 1 |
1-4 |
5-14 |
15-44 |
44-59 |
> 60 |
| |
diarrhoea/dehydration |
|
|
|
|
|
|
|
|
|
|
|
|
| |
fever with cough |
|
|
|
|
|
|
|
|
|
|
|
|
| |
fever and chills/malaria |
|
|
|
|
|
|
|
|
|
|
|
|
| |
measles |
|
|
|
|
|
|
|
|
|
|
|
|
| |
trauma |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
other/unknown |
|
|
|
|
|
|
|
|
|
|
|
|
| |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
Comments ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________ ____________________________________________________________________________
|