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PubMed2003

Health behaviour in Estonia, Finland and Lithuania 1994-1998. Standardized comparison.

BACKGROUND: The Finbalt Health Monitor project collects standardized information on health and health-related behavioural activity and related trends in Finland and those Baltic countries that have major public health problems with noncommunicable diseases related to lifestyle and behavioural factors. The aims of this study were to compare patterns of and trends in selected health behaviours and their socioeconomic associations in Estonia, Finland and Lithuania in the period 1994-1998. METHODS: Standardized questionnaires were posted to nationally representative samples in 1994, 1996 and 1998. Response rates varied between 62% and 83%. The total number of respondents was 3808 in Estonia, 9608 in Finland and 5716 in Lithuania. Prevalence of smoking, consumption of strong alcoholic beverages, use of vegetable oil in food preparation and leisure-time physical exercise were analysed in this study. RESULTS: No major changes in daily smoking, consumption of strong alcoholic beverages and leisure-time physical exercise emerged. However, the use of vegetable oil increased rapidly in Estonia and particularly in Lithuania (from 41% to 81%). In 1994 the prevalence of daily smoking was 53%, 28% and 44% among men and 24%, 18% and 6% among women in Estonia, Finland and Lithuania, respectively. In Lithuania the prevalence of smoking among women was notably low but increased (from 6% to 13%). The prevalence of strong alcoholic beverage consumption was similar in all countries. Leisure-time physical exercise was most common in Finland. The socioeconomic differences remained similar in all countries, unhealthy behaviours were typical among the less educated groups and men, especially in the age groups 34-49 years. CONCLUSIONS: The sociodemographic pattern of risk-related lifestyles appears to be rather similar and stable in Estonia, Finland and Lithuania. However, from the view point of possible public health implications the rapid changes in the prevalences of some behaviours are notable.

Adult↗
PubMed2004

Sociodemographic and health behaviour factors associated with obesity in adult populations in Estonia, Finland and Lithuania.

BACKGROUND: The aim of this study was to analyse the pattern of sociodemographic variations in the prevalence of obesity in Estonia, Finland and Lithuania. In addition, the association between obesity and selected health behaviours was examined. METHODS: Cross-sectional surveys were conducted among representative national samples of adult populations in 1994, 1996 and 1998. The number of participants aged 20-64 was 3759 in Estonia, 9488 in Finland and 5635 in Lithuania. The data were obtained from mailed questionnaires (covering sociodemographic characteristics, health behaviour indicators, and self-reported height and weight). Obesity was defined as BMI > or = 30 kg/m2. RESULTS: The prevalence of obesity among men and women was 10% and 15% in Estonia, 11% and 10% in Finland, and 10% and 18% in Lithuania respectively. The prevalence of obesity increased only among Estonian men. Obesity was more prevalent among those aged over 50 in all three countries. It was also more prevalent among the less educated women in all countries and among the less educated men in Finland. Obesity was less prevalent among daily smokers among Estonian men and women and Lithuanian men. Physically inactive Estonian women and Finnish men and women were more likely to be obese. CONCLUSIONS: A significant association was found between low educational level and obesity in women in all the countries, but this association was found for men only in Finland. In Finland obesity was also more consistently associated with indicators of unhealthy behaviour than in Estonia and Lithuania. Thus, even though the social gradient of obesity was broadly similar in all the countries studied, differences emerged with regard to the behavioural correlates of obesity.

Adult↗
PubMed1998

Trends in blood pressure levels and control of hypertension in Finland from 1982 to 1997.

OBJECTIVE: To assess the trends in blood pressure levels and hypertension control in Finland from 1982 to 1997. DESIGN: Four independent cross-sectional population surveys conducted in 1982, 1987, 1992 and 1997. SETTING: From 1982 to 1997, the provinces of North Karelia and Kuopio in eastern Finland and the region of Turku-Loimaa in southwestern Finland were surveyed. From 1992 to 1997, the Helsinki-Vantaa region in southern Finland was surveyed. PARTICIPANTS: Men and women aged 25-64 years were selected randomly from the national population register. The total number of participants was 27 623. MAIN OUTCOME MEASURES: We assessed mean systolic and diastolic blood pressure, prevalence of hypertension (subjects with systolic blood pressure > or = 160 mmHg or diastolic blood pressure > or = 95 mmHg or current use of antihypertensive drug treatment) and antihypertensive drug treatment and quality of hypertension care among hypertensive persons. RESULTS: Mean systolic blood pressure and the prevalence of hypertension decreased significantly in all areas except among men in the Helsinki-Vantaa region. The fall in mean diastolic pressure was significant only in eastern Finland. The proportion of hypertensives who were unaware of their condition fell from 45.5 to 24.1% in men and from 27.2 to 15.7% in women. At the same time, the proportion of hypertensives with adequately controlled blood pressure (systolic pressure < 160 mmHg and diastolic pressure < 95 mmHg) increased from 9.4 to 23.5% in men and from 16.0 to 36.7% in women. CONCLUSION: Hypertension care in Finland has improved significantly during the last 15 years. However, the situation is still far from optimal. It is obvious that the biggest problem in hypertension care has shifted from detection to adequate treatment of high blood pressure.

Adult↗
PubMed1993

Regional distribution of asthma-related hospital treatment periods in Finland in 1972-86.

We examined the use of asthma-related hospital services in geographically different areas of Finland in 1972-86, using data obtained from hospital discharge registers. A total of 254,402 cases diagnosed as asthma was identified (diagnosis 493, International Classification of Diseases, 8th Revision), information on the patient's place of residence enabling comparison of the southern, western, eastern, and northern parts of the country. Annual hospitalizations and the occurrence of new cases were calculated relative to the population, the former being found to increase throughout the country during the period studied, the most marked rise being 8.8% in Northern Finland (95% confidence interval 6.4-11.3%), and the smallest, 1.1%, in Western Finland (-0.2 to +2.5). A corresponding trend was also noted in the annual occurrence of new cases, which increased most in Northern Finland, i.e. by 4.8% (3.0-6.6), and decreased in Western Finland by 2.9% (-3.6 to -2.1). The change in asthma and the organization of treatment and factors related to the cold environment may, in combination, contribute to difficulties in the treatment of asthma in Northern Finland.

Asthma↗
PubMed2000

Births in Finland and Estonia from 1992 to 1996: convergent differences?

OBJECTIVE: To describe the differences in childbearing, in prenatal and obstetrical practices, and in perinatal health outcome in Finland and Estonia. DESIGN: Registry study using the data from the Finnish and Estonian medical birth registries for years 1992 to 1996 (in total 324,021 and 74,297 newborns, respectively). RESULTS: In 1992 the birth rates were 51 per 1,000 women aged 15 to 49 in Finland and 48 per 1,000 in Estonia. The birth rate declined in the study period in both countries, but the decline was more rapid in Estonia (-26%) than in Finland (-6%). In the same period the rates of induced abortion declined in both countries (-34% and -6%, respectively), but the rate in 1996 was still much higher in Estonia (46/1,000) than in Finland (8/1,000). Compared with Finnish mothers, Estonian mothers were younger, had fewer multiple births, less prenatal care and fewer interventions during pregnancy and delivery. The intervention rates increased in both countries during the study period, but this increase was more rapid in Estonia. The infant outcomes were poorer in Estonia, but the differences between Estonia and Finland decreased during the 1990's. CONCLUSIONS: The differences in prenatal and maternal care and in induced abortion rates have decreased between Estonia and Finland. Changes in maternal backgrounds, improved referral system for complicated pregnancies, improvements in prenatal care and in availability of appropriate equipment and technology may have caused improved maternal and infant health in Estonia, but this should be further investigated.

Abortion, Spontaneous↗
PubMed2004

Occurrence of multiple sclerosis in central Finland: a regional and temporal comparison during 30 years.

OBJECTIVE: We estimated the prevalence and incidence of multiple sclerosis (MS) in central Finland up to 2000. Rates were compared with those in other areas in Finland. MATERIAL AND METHOD: MS cases were identified in the hospital registry by ICD codes for demyelinating diseases from 1979 to 2000. Cases with definite MS were included. Incidence and prevalence were calculated with 95% CI and standardization was performed using direct method. RESULTS: In 1993 prevalence was 59/10(5) (n = 153). Incidence in 1979-93 was 3.8/10(5) person-years (n = 126). Rates are similar to average in areas with known rates of MS in Finland but substantially less than the over twofold MS risk in the neighbouring district Seinajoki. Extended follow-up to 2000 in central Finland showed increasing prevalence up to 105/10(5) (n = 277) and a significant increase in incidence 1994-98 up to 9.2/10(5) (n = 105). At the same time the diagnostic use of MRI increased up to 97%. CONCLUSION: Central Finland represents an average risk area of MS when compared with other areas of Finland but still a high risk in global comparison. The recent rapid increase in both prevalence and incidence is largely accounted for by increased use of MRI.

Adolescent↗
PubMed2003

Regional differences in Finland in the prevalence of rheumatoid factor in the presence and absence of arthritis.

OBJECTIVES: To look for possible regional differences in the prevalence of rheumatoid factor (RF) in the presence and absence of arthritis. METHODS: The study covered a representative sample of the Finnish population aged 30 years or over, primarily comprising 8000 people, of whom 7217 participated in the field survey carried out in 1978-80. RF from serum samples from 7116 subjects was determined by the Waaler-Rose (sensitised sheep cell agglutination) test. Titres >or=32 were regarded as positive and titres >or=128 as strongly positive. Arthritis was diagnosed by a thorough clinical examination. RESULTS: In the absence of arthritis the prevalence of positive and strongly positive RF reactions was 2.1% and 1.0%, respectively. The lowest prevalence of strongly "false positive" RF occurred in south western Finland. After adjustment for age, sex, smoking, and coffee consumption the odds ratio of having a strongly "false positive" RF reaction in eastern Finland was 3.16 (95% confidence interval 1.29 to 7.72) and in northern Finland 2.94 (1.13 to 7.64) compared with south western Finland. The corresponding odds ratio of strongly RF positive arthritis in eastern Finland was 5.08 (1.41 to 18.27). CONCLUSION: Regional differences are found in the prevalence of a strongly positive RF reaction in the Finnish population. The findings are in accordance with recent results from another study concerning regional differences in the incidence of rheumatoid arthritis in Finland.

Adult↗
PubMed1993

Differences in coronary mortality can be explained by differences in cholesterol and saturated fat intakes in 40 countries but not in France and Finland. A paradox.

BACKGROUND: For decades, the coronary heart disease (CHD) mortality rate has been four or more times higher in Finland than in France despite comparable intakes of dietary cholesterol and saturated fat. A potential answer to this paradox is provided by this study of 40 countries and the analyses of other nutrients in the diets besides cholesterol and saturated fat. METHODS AND RESULTS: CHD death rates for men aged 55 to 64 years were derived from the World Health Organization annual vital statistics. Dietary intakes were gathered from the Food and Agriculture Organization of the United Nations database. Forty countries at various levels of economic development and 40 dietary variables were investigated, including a lipid score that combined the intakes of cholesterol and saturated fat (Cholesterol-Saturated Fat Index [CSI]). The CSI was significantly and positively related to CHD mortality in the 40 countries. The countries with low CSIs had low CHD death rates. Countries with high CSIs had a wide range of CHD death rates. France, Finland, and other Western industrialized countries had similar CSIs. After adjusting for cholesterol and saturated fat, milk and many components of milk (butterfat, milk protein, calcium from milk, and riboflavin) and total calcium remained positively related to CHD mortality for all 40 countries. There were differences in the consumption of these foods and nutrients in France and Finland. Milk and butterfat (fat from milk, cream, cheese, and butter) consumption was higher in Finland than in France. The consumption of plant foods, recently shown to be protective against CHD (vegetables and vegetable oils containing monounsaturated and polyunsaturated fatty acids), was greater in France than in Finland. CONCLUSIONS: Over the years, France and Finland, with similar intakes of cholesterol and saturated fat, consistently have had very different CHD mortality rates. This paradox may be explained as follows. Given a high intake of cholesterol and saturated fat, the country in which people also consume more plant foods, including small amounts of liquid vegetable oils, and more vegetables (more antioxidants) had lower rates of CHD mortality. On the other hand, milk and butterfat were associated with increased CHD mortality, possibly through their effects on thrombosis as well as on atherosclerosis.

Cholesterol, Dietary↗
PubMed1995

Incidence of gastric cancer and prevalence of chronic gastritis in outpatients: comparison between two geographical areas in Finland.

We present some evidence that there exists a positive relationship between the incidence of gastric cancer and the prevalence rate of chronic gastritis, regarding the time trends and geography of these diseases in Finland. Both gastric cancer and chronic gastritis have declined in occurrence during the last 15 years, and there exists a similar geographic distribution of these diseases in Finland on the north-south axis: both are more prevalent in Lapland than in Southern Finland. The distribution of the socioeconomic conditions in Finland also shows a north-south axis: the proportion of people with low social class, number of children (birth rate) per household is higher, and the yearly income on average is lower in Lapland than in Southern Finland. We conclude that the epidemiology of chronic gastritis and gastric cancer show similar epidemiological features, regarding at least the time trends and geography of these diseases in Finland.

Adult↗
PubMed2002

Regional and seasonal variation in the length of hospital stay for chronic obstructive pulmonary disease in Finland.

Notable regional and seasonal variation has been reported in the rate of hospital admissions for chronic obstructive pulmonary disease (COPE). The aim of this study was to assess the variation in the length of hospital stay for COPD in Finland on the north south axis and by season. For this purpose, the patient records of subjects aged over 45 hospitalised altogether 153,401 times with COPD as their primary diagnosis during 1987 - 1998 were retrieved from the Finnish Hospital Discharge Register maintained by the National Research and Development Centre for Welfare and Health. During this period, the average length of hospital episodes was 9.8 (SD) 47.8) days in northern Finland and 11.9 (SD 54.5) days in southern Finland (p = 0.001). Throughout Finland, the mean duration of hospital stay was longest in the winter, 12.3 (SD) 62.3) days, and shortest in the summer, 11.0 (SD) 42.3) days (p = 0.001). The mean duration of hospital stay in northern Finland was also longest in the winter, 10.6 (SD 56.7) days, and shortest in the summer, 8.8. (SD) 26.7) days (p = 0.015). Hospital episodes for COPD vary in duration in Finland, probably mainly due to regional differences in health care resources and treatment routines. The light and warm northern summer may also speculatively serve to shorten hospital episodes.

Aged↗
PubMedDate not supplied

Breast cancer in Nigeria and Finland: epidemiological, clinical and histological comparison.

BACKGROUND: We compared the histology and patterns of occurrence of breast cancers in Nigeria (n = 297) and Finland (n = 285). PATIENTS AND METHODS: The histology of invasive ductal carcinoma (IDC) was re-evaluated using similar criteria. The clinical data were extracted from medical records. RESULTS: The mean age at presentation was 42.7 (12.2) years in Nigeria vs. 58.7 (12.5) years in Finland. In both populations there was an association between reproductive factors and the occurrence of breast cancer. In Nigeria, 53.2% of cases belonged to stages 3 and 4 (vs. 6.7% in Finland). In Finland there were higher frequencies of lobular, tubular and mucinous types than in Nigeria. The Nigerian material had more medullary type (2.7% vs. 0.7% in Finland), extensive necrosis, nuclear atypia and pleomorphism, with coexisting pleomorphic ductal carcinoma in situ. At 2 years after treatment, the survival figures for Nigeria and Finland were 72.8% and 96.4%, respectively. CONCLUSION: The histology of Nigerian and Finnish cancers clearly differ. Nigerian cancers appear more advanced with higher grade. The atypical in situ component is clearly more common in Nigeria. Part of the differences can be explained by diagnostic and treatment delays associated with misguided socio-cultural beliefs, poor health care access and impaired immunity.

Adolescent↗
PubMed1992

Hip fractures in two health care regions in Finland in 1989: an analysis of treatment.

We studied prospectively the demographic data, fracture types and modes of treatment in 390 patients with acute traumatic hip fractures in two health care regions in Finland, the Middle Finland region and the Kymenlaakso region in 1989. In Middle Finland population (251,203 inhabitants) 199 patients with a hip fracture were admitted to two acute care hospitals, while 191 patients were admitted in Kymenlaakso (population 189,726) to four acute hospitals. There were no significant differences in the sex- and age-specific incidences between the two regions. In Middle Finland, 70% of the fractures were of the femoral neck, 28% were trochanteric and 2% subtrochanteric. The corresponding figures in Kymenlaakso were 57%, 38% and 5% (P < 0.05). In Middle Finland, 73% of the femoral neck fractures were treated primarily with a hemiendoprosthesis, 2% with primary total hip replacement and 25% by osteosynthesis. The corresponding figures in Kymenlaakso were 81%, 7% and 12% (P < 0.001). The mean duration of hospital stay was 14 days in Middle Finland and 21 days in Kymenlaakso (P < 0.01).

Adult↗
PubMed1990

Infant mortality in Sweden and Finland: implications for the United States.

Sweden had the lowest reported infant mortality rate (IMR) among countries of the world from 1920 until 1980. Since 1981, Sweden, Japan, and Finland have shared this number one ranking on a somewhat rotating basis. The United States ranks 18th. In 1985, the reported IMRs in Japan, Sweden, and Finland were 5.5, 6.8, and 6.3, respectively, while that of the United States was 10.6 per 1000 live births. This article presents detailed data on IMR in Sweden, Finland, and the United States. It also includes data on neonatal mortality, postneonatal mortality, age of death, and incidence of low birth-weight in the three countries. The paper briefly describes background information on maternal and infant care in Sweden and Finland, including prenatal care, labor and delivery, sex education, family planning, abortion, infant care, and social benefits in Sweden and Finland. The paper gives possible reasons for the achievement of the low IMR in Sweden and Finland, and considers the implications for the United States.

Birth Weight↗
PubMed1989

Trends and determinants of ischaemic heart disease mortality in Finland: with special reference to a possible levelling off in the early 1980s.

There has been a general decline in mortality from ischaemic heart disease (IHD) in Finland since the beginning of the 1970s. An intensified preventive programme was started in the province of North Karelia in 1972. Between 1974 and 1979 the decline in IHD mortality in North Karelian men was steeper than that in the rest of Finland. This favourable trend was associated with a fall in the levels of major coronary disease risk factors. Case-fatality from acute coronary events did not change much during this period. A levelling off in the decline in IHD mortality has been observed in the 1980s first in North Karelia and later in the whole of Finland. These findings from the official mortality statistics were confirmed in North Karelia by the data from the population-based coronary register. This levelling off in the decline in IHD mortality was associated with levelling off in risk-factor reductions in eastern Finland and with little improvement in risk-related behaviours in Finland during the 1980s. The IHD rates are still high and associated with persistent high risk factor levels and particularly with high serum cholesterol and blood pressure levels. Together with IHD mortality, the decline in total mortality also levelled off both in North Karelia and in the rest of Finland during the early 1980s. Compared with other countries, the rates of coronary disease and total mortality in the middle-aged Finnish population, especially among men, are among the highest in the world.(ABSTRACT TRUNCATED AT 250 WORDS)

Aged↗
PubMed1997

Schizophrenia in the genetic isolate of Finland.

We compared the features of schizophrenia in the homogeneous population of Finland (population about 5,000,000) and in an internal isolate in northeastern Finland inhabited in the 1680s by a small group of founders (current population about 18,000) in a register-based epidemiological study. We identified all cases with a diagnosis of schizophrenia in Finland born between 1940-1969 using three national computerized registers and found a total of 267 schizophrenia patients in the internal isolate and 29,124 in Finland. The lifetime prevalence was 2.21% in the internal isolate and 1.21% in Finland, respectively. The age-corrected lifetime risk was 3.2% in the internal isolate and 1.1% in the whole country. The risk of schizophrenia to siblings in the internal isolate was 6.4% (95% confidence interval 0.052, 0.078), 9.1% (95% CI 0.062, 0.130), and 6.8% (95% CI 0.028, 0.135) given 1, 2, or 3 affected siblings, and for all Finland 4.2% (95% CI 0.036, 0.043), 6.4% (95% CI 0.058, 0.071), and 8.7% (95% CI 0.068, 0.107) given 1, 2, or 3, affected siblings, respectively. The mean number of children in schizophrenia families and thus the number of families having at least two affected individuals were clearly higher in the isolate (24.9% vs 9.2%). We did not find any other epidemiological features differing between these two regions. It seems that the family material collected from the internal isolate is a representative subsample from the entire country and hopefully it enables easier identification of at least some predisposing genes for schizophrenia due to its unique population structure.

Adult↗
PubMed1995

Angiotensin-converting enzyme genotypes in the high- and low-risk area for coronary heart disease in Finland.

The deletion/deletion genotype of the insertion (I)/deletion (D) polymorphism of the angiotensin-converting enzyme (ACE) gene has been suggested to be a risk factor for myocardial infarction (MI). The objective of this study was to evaluate whether genotype distributions of the I/D polymorphism of the ACE gene are different between individuals from high-risk and low-risk areas for coronary heart disease in the genetically isolated population of Finland and to assess the impact of this genetic risk factor by comparing individuals with different parental histories of MI. Representative population-based samples of middle-aged men (n = 363) and women (n = 358) from two areas of Finland were used. The area had a borderline significant effect on the prevalence of the genotype DD (beta = 0.35, SE = 0.16, X2 = 470, df = 1, P = 0.03), the DD genotype being more prevalent in eastern Finland (the high-risk area). The II genotype was more prevalent in women with parental history of MI, so we could not replicate the previous findings of the risk-increasing effect of DD genotype in this sample. Although the observed difference in the ACE DD genotype between the high-risk and low-risk areas for coronary heart disease might represent one of the genetic factors contributing to the difference in risk of coronary heart disease between eastern and southwestern Finland, the data emphasize the fact that also other risk factors, including other genes, contribute to this difference and the high incidence of MI in Finland.

Adult↗
PubMed2001

Dissecting the epidemiology of a trinucleotide repeat disease - example of FRDA in Finland.

Friedreich ataxia (FRDA) is associated with the expansion of a GAA trinucleotide repeat in the first intron of the frataxin (X25) gene. Worldwide it is considered to be the most common form of hereditary ataxia, but it is infrequently encountered in Finland. We have performed the first epidemiological study on the frequency of FRDA in Finland by combining results from a nationwide clinical survey and a molecular carrier testing study. Haplotype analysis was performed for the Finnish FRDA patients and the distribution of frataxin gene GAA repeats was analyzed in controls. In the general population of Finland, the carrier frequency was only 1 in 500, corresponding to a birth incidence of 1 in 10(6). In the more sparsely populated Northern Finland the carrier frequency was five times higher and also four out of the seven Finnish FRDA patients originated from this region. Haplotype analysis revealed the major universal risk haplotype in all the investigated patients. Alleles in the uppermost end of the normal variation (28-36 GAA) were totally missing in the Finnish population. The relative enrichment of the FRDA mutation in the north probably dates back to the internal migration movement and inhabitation of northern Finland in the 1500s. Breaking down the epidemiology of FRDA into clinical and molecular components brings along the possibility of providing more reliable and population-based genetic counseling and recurrence risk estimations.

Adaptor Proteins, Signal Transducing↗
PubMed2005

Different labelling of obstructive airway diseases in Estonia, Finland, and Sweden.

Large differences in prevalence of asthma have been reported between westernised countries and the former Eastern European countries, and still no consensus about the reasons for the differences exists. The aim of this study was to assess diagnostic labelling of obstructive airway diseases, comparing subjects with respiratory symptoms and the diagnoses obtained in Estonia, Finland, and Sweden. A postal questionnaire was sent to population-based random samples, and 44,483 (76%) answers were obtained from the 58,661 invited in 1996. Among men, current smoking was most common in Estonia, 60%, followed by Finland, 39%, and Sweden, 28%. In all three countries, 30% of women were current smokers. Most respiratory symptoms including wheezing were most common in Estonia, also among non-smokers. The prevalence of asthma was 2.0% and chronic bronchitis 10.7% in Estonia, while the opposite was found in Sweden with an asthma prevalence of 7.8% and a chronic bronchitis prevalence of 3.1%. The pattern in Finland was similar to that of Sweden. The same differences between the three countries were found also among young subjects. The total proportion of diagnosed obstructive lung diseases in subjects with respiratory symptoms was similar, but the diagnosis of asthma was considerably more common in Finland and Sweden. Chronic bronchitis was favoured in Estonia, also among young adults irrespectively of what symptoms were present. In a multivariate model with correction for confounders, the risk (OR) for having a diagnosis of asthma was 5.65 (95% CI: 4.86-6.56) when living in Sweden, and 3.51 (95% CI: 3.00-4.12) in Finland, whereas risk for chronic bronchitis was 0.28 (0.25-0.31) and 0.22 (0.19-0.25), respectively, compared to Estonia. The study indicates differences in diagnostic practices of obstructive lung diseases between the three countries.

Adult↗