Registered incidence

DEFINITIONS

Actions at the time of the occurrence of the incident — actions which resulted in the injury or poisoning of the patient. They are codified on the basis of Chapter XX: External causes, code 5 of ICD-10 (0–4, 8, 9) (see methodology).

Age group — in health care statistics a child is considered to be a person aged 0 to 14 years, while an adult is a person aged 15 years and older.

Average annual population — half the sum number of the population at the beginning and the end of the year. This index is used to calculate rates.

Birth weight — the first weight of the fetus or newborn obtained after birth (preferably measured within the first hour of life).

County — location of health care service provider. It is classified according to the Classification of Administrative and Settlement Units of Estonia (EHAK) (see classifications).

Diagnosis (according to ICD-10) — The diagnosis established according to the International Statistical Classification of Diseases and Related Health Problems (ICD-10).

External causes of injuries and poisonings — outer environmental factors, events and circumstances which have caused the injury or poisoning. External causes are classified on the basis of Chapter XX (V01–Y98) of ICD-10.

Health care provider or health care facility — a legal person whose principal or ancillary activity is to provide health care services. Health care providers (except family doctor's offices) must have an activity licence issued by the Health Board (Health Care Board until 1 January 2010).

Health care service — activities of health care personnel (doctor, dentist, nurse, midwife), aimed at preventing, diagnosing or curing a disease, an injury or poisoning, at alleviating human suffering, at preventing the state of health of a patient from worsening or exacerbating and at improving the patient’s health. Health care services are divided into three types: outpatient health care service, or outpatient care, day care and inpatient health care service, or hospital care.

ICD-10 — International Statistical Classification of Diseases and Related Health Problems 10th Revision.

Incidence — occurrence of new cases of a specified disease among the population during a specified period of time. It can be measured by the absolute number, which means the number of new cases of disease during a specified period of time, or the relative number, which means the disease occurrence rate (i.e. incidence rate), denoting the number of new cases of a disease in relation to the size of the population during a certain period of time. In health statistics: incidence registered by service providers.

Incidence rate — denotes the number of new cases (the final diagnosis confirmed for the first time in the life of a patient) of a disease in relation to the size of the population during a certain period of time. As a rule, this index is calculated per 100 000 people per year considering sex and age rates.

Live birth — delivery of a child showing evidence of life (breathing, heartbeat, pulsation of the umbilical cord or definite movement of voluntary muscles) irrespective of the duration of pregnancy.

New case of a disease or a new case — the final diagnosis confirmed for the first time in the life of a patient.

Newborn — child from birth to 4 weeks of age.

Stillbirth or late fetal death — intra-uterine death of the fetus weighing at least 500 grams at birth, which took place after the 22nd week of pregnancy.

METHODOLOGY

The aim of collecting morbidity statistics is to get regular national overviews of the rate of morbidity of the population, to compare the data concerning the morbidity and to ensure its consistency.

The data is collected from all institutions providing health care services which hold a relevant activity licence and from family physicians working with practice lists in accordance with the Health Care Services Organisation Act (HCSOA) and decree by the Minister of Social Affairs on the basis of the HCSOA.

The data about registered incidence is presented in the annual report “Health Care Institution“. All legal persons providing outpatient and inpatient services are required to submit the report, excluding emergency medical care and dental care institutions, which submit data about their activities in other type of reports.

The institutions providing obstetrics services submit data about incidence of newborns in the annual report “Newborns' Morbidity“ (unitl 2012 “Pregnant Women and Women Giving Birth“, 2013–2015 “Pregnant Women and Newborns' Morbidity“). The data included in “Newborns' Morbidity“ report reflects the rate of morbidity registered at maternity hospitals. Data is collected on a child at the age of 7 days or on the day the child leaves home from hospital, is transferred to another medical institution, or dies before the age of 7 days.

The data are published in absolute and relative numbers (rate per 100 000 inhabitants; incidence rate of newborns is calculated per 1000 live births). The number of live births in Estonia registered by the Estonian Medical Birth Registry serves as the basis for calculation of the incidence rate of newborns. The incidence rate of newborns includes the incidence of all newborns born in Estonia (including those whose residence is abroad).

Morbidity statistics concerning registered incidence must be submitted by health care service providers. Health care service providers are required to submit data according to the registered location of activities of their undertaking, which is why the county division of the morbidity data is based on the location of the health care service provider, not on the place of residence of the patient.

The data is submitted on the basis of 10th Revision of the International Statistical Classification of Diseases and Related Health Problems classification (ICD-10): Ch. I–XIX (codes A00–T98), excluding malignant neoplasms (Ch. II, codes C00–C97). Morbidity statistics on malignant neoplasms is available under the topic "Malignant neoplasms" in the Morbidity subdivision of the Health Statistics and Health Research Database.

Children are persons aged from 0 to 14 years (14 years and 11 months). Adults are persons aged 15 years and older.

The data about the external causes of injuries and poisonings are presented for the codes S00–T75 of the ICD-10 Chapter XIX: Injury, poisoning and certain other consequences of external causes.

The external causes of incidence of injuries and poisonings are classified according to ICD-10 Chapter XX: External causes of morbidity and mortality (V01–Y08).

According to ICD-10, a five-digit code should be used to describe an external cause of an injury:

Table EH30 “External causes of injuries by activity, sex and age group” and table EH32 “External causes of injuries per 100 000 inhabitants by activity, sex and age group” are compiled on the basis of an external cause of the injury and an activity of the injured person at the time the event occurred.

The activities described on the basis of ICD-10 codes:

Activity code (ICD-10) Activity at the time the event occurred
0 Sports activity (including leisure sports activity)
1 Leisure activity (including hobby activities, going to the cinema, to the theatre, to a party)
2 Working for income (including going to / coming from work)
3 Other types of work. Duties for which one would not normally gain earn (taking care of children and relatives, going shopping, working in the house and garden, repairs, studying)
4 Activities vital for life (eating, personal hygiene, sleeping)
8 Other specified activities
9 Unspecified activity

See also the latest Estonian Health Insurance Fund's injuries data in the Health Statistics and Health Research Database under the topic "Injuries".

Due to the preparations for the transfer to statistics based on individual data every doctor must from 2005 onwards register only the new cases diagnosed by them personally. Earlier the new diagnoses given in hospitals were registered by the patient's family doctor. The arrangement process for case registration system has differed by institutions and this causes annual fluctuations, for example, due to double registration.

CLASSIFICATIONS

Classification of Administrative and Settlement Units of Estonia (EHAK)

This classification is used upon submission of regional statistics. Regional health care statistics are submitted by 15 counties. Information about Tallinn and Tartu is submitted separately. This classification system is available on the webpage of the Statistics Estonia in the Classifications section.

The International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10)

This classification is used to code diagnoses and submit the data about disease cases in accordance with the diagnoses. The classification system is available on the webpage of the World Health Organization.

CONTACT

Katre Väärsi

Department of Health Statistics

National Institute for Health Development

Phone: +372 659 3812

E-mail: Katre.Vaarsi[at]tai.ee

 

Incidence of newborns data contact

Eva Anderson

Department of Health Statistics

National Institute for Health Development

Phone: +372 6593 806

E-mail: Eva.Anderson[at]tai.ee

 

Updated: 25.09.2019