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OBJECTIVE: This prospective study explores whether dieting attempts and previous changes in weight predict changes in body mass index (BMI) and waist circumference (WC). METHODS: The study was based on the representative Finnish Health 2000 Survey and on its follow-up examination 11 years later. The sample included 2,785 participants, aged 30-69. BMI and WC were determined at health examinations. Information on dieting attempts and previous changes in weight was collected using a questionnaire including questions on whether participant had tried to lose weight (no/yes), gained weight (no/yes) or lost weight (no/yes) during the previous year. RESULTS: At baseline, 32.8% were dieters. Of these, 28.4% had lost weight during the previous year. Dieters had higher BMI and WC than non-dieters. During the follow-up, the measures increased more in dieters and in persons with previous weight loss. The mean BMI changes in non-dieters versus dieters were 0.74 (standard deviation [SD] 2.13) kg/m2 and 1.06 (SD 2.77) kg/m2 (P = 0.002), respectively. The corresponding numbers for those with no previous weight change versus those who had lost weight were 0.65 (SD 2.07) kg/m2 and 1.52 (SD 2.61) kg/m2. The increases in BMI and WC were most notable in dieters with initially normal weight. CONCLUSIONS: The increases in BMI and WC were greater in dieters than in non-dieters, suggesting dieting attempts to be non-functional in the long term in the general population.
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PURPOSE: To study the known or suspected risk factors for sciatica: Tallness, overweight, smoking, leisure-time physical exercise, self-reported health and occupation, and how they predict hospitalizations due to sciatica. Only a few cohort studies have previously focused on the risk factors for sciatica. METHODS: The 13,095 subjects, free from low back disorders at the baseline in 1973-1976 were followed up to the end of 2011 via the Care Register for Health Care. Along with an invitation to the health examination, a basic questionnaire concerning lifestyle factors was sent to participants. The outcome measure was incident sciatica leading to hospitalization. RESULTS: Altogether 702 incident sciatica cases occurred. Among men, the adjusted hazard ratio (HR) with 95% confidence interval (CI) was 2.57 (95% CI 1.47-4.50) in metal or machine work, and 1.44 (1.06-1.95) in other industrial work, compared to that in white-collar occupations. Among women, the corresponding risk estimates were 1.81 (1.18-2.78) for nurses and related occupations, 1.56 (1.05-2.31) for sales workers, and 1.46 (1.03-2.08) for industrial workers. Among men, physical exercise during leisure predicted a decrease in the risk of sciatica (0.74; 0.55-1.00); this association was significantly pronounced in white-collar occupations (0.38; 0.18-0.88). Among women, the association between body mass index and the risk of sciatica was only modest, but varied greatly between different occupations. CONCLUSIONS: Physically demanding work is a strong risk factor for sciatica. Leisure-time physical activity seems to protect men against sciatica, while overweight is a risk factor among women. However, occupation substantially modifies these associations.
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Hospitalización/estadística & datos numéricos , Ciática/epidemiología , Estudios Transversales , Humanos , Factores de Riesgo , Encuestas y CuestionariosRESUMEN
BACKGROUND AND AIMS: Clinical experience and observational studies suggest that individuals with coeliac disease are at increased risk of coronary heart disease (CHD), but the precise mechanism for this is unclear. Laboratory studies suggest that it may relate to tissue transglutaminase antibodies (tTGAs). Our aim was to examine whether seropositivity for tTGA and endomysial antibodies (EMAs) are associated with incident CHD in humans. METHODS AND RESULTS: We used data from Mini-Finland Health Survey, a prospective cohort study of Finnish men and women aged 35-80 at study baseline 1978-80. TTGA and EMA seropositivities were ascertained from baseline blood samples and incident CHD events were identified from national hospitalisation and death registers. Cox regression was used to examine the associations between antibody seropositivity and incident CHD. Of 6887 men and women, 562 were seropositive for tTGAs and 72 for EMAs. During a median follow-up of 26 years, 2367 individuals experienced a CHD event. We found no clear evidence for an association between tTGA positivity (hazard ratio, HR: 1.04, 95% confidence interval, CI: 0.83, 1.30) or EMA positivity (HR: 1.16, 95% CI: 0.77, 1.74) and incident CHD, once pre-existing CVD and known CHD risk factors had been adjusted for. CONCLUSION: We found no clear evidence for an association of tTGA or EMA seropositivity with incident CHD outcomes, suggesting that tTG autoimmunity is unlikely to be the biological link between coeliac disease and CHD.
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Autoanticuerpos/sangre , Enfermedad Celíaca/sangre , Enfermedad Coronaria/sangre , Proteínas de Unión al GTP/inmunología , Transglutaminasas/inmunología , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores/sangre , Enfermedad Celíaca/diagnóstico , Enfermedad Celíaca/epidemiología , Enfermedad Celíaca/inmunología , Enfermedad Coronaria/diagnóstico , Enfermedad Coronaria/epidemiología , Enfermedad Coronaria/inmunología , Femenino , Finlandia/epidemiología , Encuestas Epidemiológicas , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Análisis Multivariante , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Proteína Glutamina Gamma Glutamiltransferasa 2 , Factores de Riesgo , Pruebas SerológicasRESUMEN
BACKGROUND: Empirical evidence on whether patients' mental health and functioning will be more improved after long-term than short-term therapy is scarce. We addressed this question in a clinical trial with a long follow-up. METHOD: In the Helsinki Psychotherapy Study, 326 out-patients with mood or anxiety disorder were randomly assigned to long-term psychodynamic psychotherapy (LPP), short-term psychodynamic psychotherapy (SPP) or solution-focused therapy (SFT) and were followed for 10 years. The outcome measures were psychiatric symptoms, work ability, personality and social functioning, need for treatment, and remission. RESULTS: At the end of the follow-up, altogether 74% of the patients were free from clinically elevated psychiatric symptoms. Compared with SPP, LPP showed greater reductions in symptoms, greater improvement in work ability and higher remission rates. A similar difference in symptoms and work ability was observed in comparison with SFT after adjustment for violations of treatment standards. No notable differences in effectiveness between SFT and SPP were observed. The prevalence of auxiliary treatment was relatively high, 47% in SFT, 58% in SPP and 33% in LPP, and, accordingly, the remission rates for general symptoms were 55, 45 and 62%, respectively. CONCLUSIONS: After 10 years of follow-up, the benefits of LPP in comparison with the short-term therapies are rather small, though significant in symptoms and work ability, possibly due to more frequent use of auxiliary therapy in the short-term therapy groups. Further studies should focus on the choice of optimal length of therapy and the selection of factors predicting outcome of short- v. long-term therapy.
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Ansiedad/epidemiología , Depresión/epidemiología , Trastornos del Humor/terapia , Psicoterapia Breve/métodos , Psicoterapia de Grupo/métodos , Psicoterapia Psicodinámica/métodos , Adulto , Femenino , Finlandia , Estudios de Seguimiento , Humanos , Modelos Logísticos , Masculino , Pacientes Ambulatorios/psicología , Personalidad , Escalas de Valoración Psiquiátrica , Inducción de Remisión , Ajuste Social , Resultado del Tratamiento , Evaluación de Capacidad de Trabajo , Adulto JovenRESUMEN
Studies have shown that a diet of healthy foods typical of Nordic countries has a beneficial effect on risk factors for Type 2 Diabetes (T2D), such as obesity and low-grade inflammation. However, longitudinal epidemiological studies examining the association between the healthy Nordic diet and T2D are lacking.
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Diabetes Mellitus Tipo 2/dietoterapia , Diabetes Mellitus Tipo 2/epidemiología , Dieta/métodos , Conducta Alimentaria , Predicción , Femenino , Finlandia/epidemiología , Estudios de Seguimiento , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Encuestas y CuestionariosRESUMEN
Variability in response to drug use is common and heritable, suggesting that genome-wide pharmacogenomics studies may help explain the 'missing heritability' of complex traits. Here, we describe four independent analyses in 33 781 participants of European ancestry from 10 cohorts that were designed to identify genetic variants modifying the effects of drugs on QT interval duration (QT). Each analysis cross-sectionally examined four therapeutic classes: thiazide diuretics (prevalence of use=13.0%), tri/tetracyclic antidepressants (2.6%), sulfonylurea hypoglycemic agents (2.9%) and QT-prolonging drugs as classified by the University of Arizona Center for Education and Research on Therapeutics (4.4%). Drug-gene interactions were estimated using covariable-adjusted linear regression and results were combined with fixed-effects meta-analysis. Although drug-single-nucleotide polymorphism (SNP) interactions were biologically plausible and variables were well-measured, findings from the four cross-sectional meta-analyses were null (Pinteraction>5.0 × 10(-8)). Simulations suggested that additional efforts, including longitudinal modeling to increase statistical power, are likely needed to identify potentially important pharmacogenomic effects.
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Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/genética , Interacción Gen-Ambiente , Síndrome de QT Prolongado/genética , Farmacogenética , Polimorfismo de Nucleótido Simple/genética , Carácter Cuantitativo Heredable , Simulación por Computador , Estudios Transversales , Electrocardiografía , Estudio de Asociación del Genoma Completo , Humanos , Modelos Lineales , Cadenas de Markov , Población Blanca/genéticaRESUMEN
BACKGROUND: Whether long-term psychodynamic therapy (LPP) and psychoanalysis (PA) differ from each other and require different therapist qualities has been debated extensively, but rarely investigated empirically. METHODS: In a quasi-experimental design, LPP was provided for 128 and PA for 41 outpatients, aged 20-46 years and suffering from mood or anxiety disorder, with a 5-year follow-up from start of treatment. Therapies were provided by 58 experienced therapists. Therapist characteristics, measured pre-treatment, were assessed with the Development of Psychotherapists Common Core Questionnaire (DPCCQ). General psychiatric symptoms were assessed as the main outcome measure at baseline and yearly after start of treatment with the Symptom Check List, Global Severity Index (SCL-90-GSI). RESULTS: Professionally less affirming and personally more forceful and less aloof therapists predicted less symptoms in PA than in LPP at the end of the follow-up. A faster symptom reduction in LPP was predicted by a more moderate relational style and work experiences of both skillfulness and difficulties, indicating differences between PA and LPP in the therapy process. CONCLUSIONS: Results challenge the benefit of a classically "neutral" psychoanalyst in PA. They also indicate closer examinations of therapy processes within and between the two treatments, which may benefit training and supervision of therapists.
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Trastornos de Ansiedad/terapia , Trastornos del Humor/terapia , Psicoanálisis , Psicoterapia Psicodinámica , Psicoterapia , Adulto , Trastornos de Ansiedad/psicología , Humanos , Persona de Mediana Edad , Trastornos del Humor/psicología , Resultado del Tratamiento , Adulto JovenRESUMEN
Sagittal abdominal diameter (SAD; 'abdominal height' measured in supine position) may improve upon conventional anthropometry for predicting incident cardiometabolic diseases. However, the SAD is used infrequently by practitioners and epidemiologists. A representative survey of Finnish adults in 2000-2001 collected body measurements including SAD (by sliding-beam calliper) using standardized protocols. Sampled non-pregnant adults (ages 30+ years; 79% participation) provided 6123 SAD measurements from 80 health centre districts. Through stratified, complex survey design, these data represented 2.86 million adults at ages 30+ years. SAD ranged from 13.5 to 38.0 cm, with a population mean (standard error) of 21.7 (0.05) cm and median (interquartile range) of 21.0 (19.1-23.4). Median SAD was higher at ages 50+ years compared with ages 30-49 both for men (22.4 [20.5-24.6] vs. 20.8 [19.3-22.7]) and women (21.7 [19.6-23.9] vs. 19.4 [17.8-21.4]). The SAD/height ratio was similar (0.118) for both sexes at 30-39 years, rising more steeply with age for women than men. Attaining only a basic education, compared with a high level, was associated with increased mean (95% confidence interval) SADs for men (22.6 [22.3-22.8] vs. 22.0 [21.7-22.2]) and women (21.8 [21.5-22.0] vs. 20.6 [20.4-20.8]). Finland's early experience with nationally representative SAD measurements provides normative reference values and physiological insights useful for investigations of cardiometabolic risk.
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Estatura , Diámetro Abdominal Sagital , Adulto , Distribución por Edad , Anciano , Antropometría , Enfermedades Cardiovasculares/epidemiología , Femenino , Finlandia/epidemiología , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Factores de RiesgoRESUMEN
Previous studies on individual foods and nutrients and Parkinson's disease (PD) risk have been inconsistent. Furthermore, only one study has examined the association between the quality of diet and PD. We investigated the prediction of food groups and diet quality on PD in the Finnish Mobile Clinic Survey (1966-72). The population comprised 4524 individuals, aged 40-79 years and free from PD at baseline. Data collection included health examinations, a questionnaire and a 1-year dietary history interview. A modified Alternate Healthy Eating Index was formed to assess diet quality. Statistical analyses were based on Cox's model. During a 41-year follow-up, eighty-five incident cases of PD occurred. No statistically significant associations were found between PD incidence and most of the food groups examined. A few exceptions were fruits and berries in men and milk in women, which showed positive associations. An inverse association between the intake of meat products and PD was found in women. The diet quality index did not predict PD, the adjusted relative risk between the highest and lowest quartiles being 1.83 (95 % CI 0.65, 5.18) in men and 0.97 (95 % CI 0.38, 2.48) in women. The present study suggests that since most of the single food groups or the quality of diet did not predict PD occurrence, the role of diet is apparently rather modest.
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Dieta/efectos adversos , Calidad de los Alimentos , Enfermedad de Parkinson/etiología , Adulto , Anciano , Animales , Estudios de Cohortes , Conducta Alimentaria , Femenino , Finlandia/epidemiología , Estudios de Seguimiento , Frutas , Encuestas Epidemiológicas , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Leche/efectos adversos , Enfermedad de Parkinson/epidemiología , Enfermedad de Parkinson/prevención & control , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Factores de Riesgo , Caracteres SexualesRESUMEN
OBJECTIVE: Patient's pre-treatment suitability for short-term psychodynamic psychotherapy (STPP) and solution-focused therapy (SFT) has not been compared. The aim of this study was to compare the prediction of psychological suitability measures on outcome of STPP vs. SFT. METHOD: Altogether 198 patients with mood or anxiety disorder were randomized to STPP or SFT. A 7-item Suitability for Psychotherapy Scale (SPS) was assessed at baseline and a cumulative SPS score was formed. Psychiatric symptoms were measured using SCL-90-GSI at baseline and seven times during a 3-year follow-up. RESULTS: The SPS score predicted the outcome of both short-term psychotherapies; for patients with a good score short-term therapies seemed beneficial, whereas for patients with a poor score they did not seem sufficient. There was no difference between STPP and SFT in the prediction of the SPS score. CONCLUSIONS: Psychological suitability measures may apparently be useful in the prediction of overall short-term psychotherapy outcomes.
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Trastornos de Ansiedad/terapia , Trastornos del Humor/terapia , Psicoterapia Breve/métodos , Adulto , Trastornos de Ansiedad/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos del Humor/psicología , Resultado del TratamientoRESUMEN
BACKGROUND: Socio-demographic factors predict the outcome of short-term psychotherapy (STT) in the treatment of mood and anxiety disorders, but information on the prediction for long long-term therapy (LPP) is lacking. We aimed to compare the prediction of changes in psychiatric symptoms afforded by socio-demographic factors across two treatment conditions, short- versus long-term psychotherapy. METHODS: In the Helsinki Psychotherapy Study, 326 outpatients with mood or anxiety disorders, aged 20-46 years, were randomly assigned to STT or LPP. Socio-demographic factors (i.e. age, gender, education, employment status, marital status, and living arrangement) were self-reported. Psychiatric symptoms were measured by the Symptom Check List, Global Severity Index (SCL-90-GSI) and Anxiety scale (SCL-90-Anx), and the Beck Depression Inventory (BDI) at baseline and seven times during a three-year follow-up period. RESULTS: Socio-demographic factors were found to predict symptom development during follow-up irrespective of the baseline symptom level. Patients in a relatively good position, i.e. married and highly educated patients benefited from STT, whereas patients in less advantaged positions, i.e. homemakers, lone parents, and divorced patients needed LPP or did not benefit from either therapy. In several categories of socio-demographic factors, the extent to which a patient's background predicted the outcome of the psychotherapy varied according to whether general, anxiety or depressive symptoms were studied. LIMITATIONS: We were unable to assess widows and pensioners. For ethical reasons, a no-treatment control group with a long follow-up could not be included in the study design. CONCLUSIONS: Socio-demographic factors may need to be considered in the selection of patients for short- and long-term therapy.
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Afecto , Trastornos de Ansiedad/terapia , Psicoterapia , Factores Socioeconómicos , Adulto , Trastornos de Ansiedad/psicología , Femenino , Finlandia , Humanos , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Psicoterapia Breve , Resultado del Tratamiento , Adulto JovenRESUMEN
OBJECTIVE: In the light of conflicting results from previous studies on the role of vitamin D, we studied serum 25-hydroxyvitamin D [25(OH)D] with regard to its prediction of incident knee and hip osteoarthritis (OA). METHODS: The study population (n = 805) consisted of participants of a national health examination survey who had undergone baseline and follow-up clinical examinations at intervals of 20-23 years. Knee and hip OA were diagnosed on the basis of a standardized clinical examination by physicians with the same diagnostic criteria at baseline and follow-up. Information on covariates, including age, sex, season of blood draw, education, body mass index (BMI), physical workload, leisure time physical activity, smoking history, and previous injuries, was collected at baseline. Serum 25(OH)D concentrations were determined from baseline serum samples kept frozen at -20°C. RESULTS: We found no significant association between serum 25(OH)D level and the risk of incident knee or hip OA. However, a statistically significant interaction between season of blood draw and serum 25(OH)D emerged when predicting the development of definite knee OA (p = 0.004). After adjusting for all the covariates, the relative odds (95% confidence interval) of developing definite knee OA per increment of 1 SD (20.7 ng/mL) in winter season 25(OH)D was 1.57 (1.10-2.27), whereas for summer season sera the corresponding rate was 0.53 (0.28-1.00). CONCLUSION: The results do not support the hypothesis that a low level of serum 25(OH)D contributes to the development of OA. Instead, our study suggests that season is a potent effect modifier of 25(OH)D, which merits attention in future research.
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Osteoartritis de la Cadera/sangre , Osteoartritis de la Rodilla/sangre , Deficiencia de Vitamina D/sangre , Vitamina D/análogos & derivados , Adulto , Comorbilidad , Femenino , Finlandia/epidemiología , Encuestas Epidemiológicas , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Osteoartritis de la Cadera/epidemiología , Osteoartritis de la Rodilla/epidemiología , Valores de Referencia , Estaciones del Año , Vitamina D/sangre , Deficiencia de Vitamina D/epidemiologíaRESUMEN
UNLABELLED: Severe vertebral fractures strongly predicted subsequent hip fracture in this population-based study. Such high-risk patients should be provided with clinical evaluation and care for osteoporosis. INTRODUCTION: Vertebral fractures are commonly osteoporotic and known to predict hip fracture. The aim of this study was to evaluate associations between the severity of vertebral fractures and the risk of subsequent hip fracture. METHODS: Chest radiographs were obtained of 7,095 Finnish men and women aged 30 years or over in the Mini-Finland Health Survey in 1978-1980. Record linkage to the National Hospital Discharge Register identified 182 subjects from the survey who had subsequently been hospitalized for primary treatment of hip fracture by the end of 1994. A nested case-control setting was adopted, where three controls individually matched for age, gender, and place of residence were drawn for 169 subjects with hip fracture from the same cohort. Baseline vertebral fractures were identified at levels T3 to T12, and their morphology was categorized to mild, moderate, or severe according to Genant's classification. RESULTS: Severe vertebral fracture (>40% reduction in vertebral body height) strongly predicted hip fracture. After controlling for education, physical activity, smoking, alcohol consumption, and self-rated general health, the adjusted relative odds was 12.06 (95% confidence interval, 3.80-38.26). Mild to moderate fracture grades and the number of compressed vertebral bodies showed no prediction for hip fracture. CONCLUSIONS: The presence of a severe vertebral fracture in the thoracic spine strongly predicts subsequent hip fracture. Such high-risk patients should be clinically evaluated and provided with care for osteoporosis and measures to reduce the risk of falling as required.
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Fracturas de Cadera/epidemiología , Fracturas Osteoporóticas/epidemiología , Fracturas de la Columna Vertebral/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Consumo de Bebidas Alcohólicas/epidemiología , Escolaridad , Métodos Epidemiológicos , Femenino , Finlandia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Actividad Motora , Fumar/epidemiologíaRESUMEN
UNLABELLED: Hip fracture risk was assessed according to parity among postmenopausal women. Compared with nulliparous women, the fracture risk was lower in women with three or more births. INTRODUCTION: Parity was assessed for long-term prediction of hip fracture in postmenopausal women. METHODS: Postmenopausal women (n= 2,028) aged 45 or over with no history of hip fracture were studied. From 1978 to 1980, all of them had participated in a comprehensive health survey based on a nationally representative population sample. Emerging cases of hip fracture were identified from the National Hospital Discharge Register during a follow-up period extending up to 17 years. RESULTS: The risk of hip fracture was lower among parous women compared with nulliparous women. The model adjusted for age showed a significant inverse association between parity as a continuous variable and the risk of hip fracture [RR = 0.74; 95% confidence interval (CI), 0.61-0.90] per an increment of one standard deviation (2.4 births). Adjusted for age, menopausal age, level of education, body mass index, vitamin D status, alcohol consumption, smoking history, leisure time physical activity, and self-rated health, the relative risk was 0.50 (95% CI, 0.32-0.79) for women with three or more births and 0.85 (95% CI, 0.55-1.32) for women with one to two births as compared with nulliparous women. CONCLUSION: Parity, three or more births in particular, predicts a lowered risk of hip fracture in the long run.
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Fracturas de Cadera/epidemiología , Osteoporosis Posmenopáusica/epidemiología , Fracturas Osteoporóticas/epidemiología , Paridad , Anciano , Consumo de Bebidas Alcohólicas/efectos adversos , Consumo de Bebidas Alcohólicas/epidemiología , Índice de Masa Corporal , Escolaridad , Femenino , Finlandia/epidemiología , Estudios de Seguimiento , Fracturas de Cadera/etiología , Humanos , Persona de Mediana Edad , Actividad Motora/fisiología , Osteoporosis Posmenopáusica/complicaciones , Fracturas Osteoporóticas/etiología , Medición de Riesgo/métodos , Fumar/efectos adversos , Fumar/epidemiología , Vitamina D/análogos & derivados , Vitamina D/sangreRESUMEN
BACKGROUND: Pesticides have been implicated as likely environmental risk factors for Parkinson disease (PD), but assessment of past exposure to pesticides can be difficult. No prior studies of pesticide exposure and PD used biomarkers of exposure collected before the onset of PD. Our investigation examined the association between prospective serum biomarkers of organochlorine pesticides and PD. METHODS: We conducted a nested case-control study within the Finnish Mobile Clinic Health Examination Survey, with serum samples collected during 1968-1972, and analyzed in 2005-2007 for organochlorine pesticides. Incident PD cases were identified through the Social Insurance Institution's nationwide registry and were confirmed by review of medical records (n = 101). Controls (n = 349) were matched for age, sex, municipality, and vital status. Adjusted odds ratios (ORs) of PD were estimated using logistic regression. RESULTS: Little association emerged with a summary score of the 5 organochlorine pesticides found at high levels, and only increasing dieldrin concentrations trended toward a higher risk of PD (OR per interquartile range [IQR] 1.28, 95% confidence interval [CI] 0.97-1.69, p = 0.08). Because of possible strong confounding by cigarette smoking among smokers, we ran additional analyses restricted to never smokers (n = 68 cases, 183 controls). In these analyses, increasing dieldrin concentrations were associated with increased odds of PD (OR per IQR 1.95, 95% CI 1.26-3.02, p = 0.003). None of the other organochlorine pesticides were associated with PD in these analyses. CONCLUSIONS: These results provide some support for an increased risk of Parkinson disease with exposure to dieldrin, but chance or exposure correlation with other less persistent pesticides could contribute to our findings.
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Hidrocarburos Clorados/sangre , Enfermedad de Parkinson/sangre , Enfermedad de Parkinson/epidemiología , Plaguicidas/sangre , Adulto , Anciano , Estudios de Casos y Controles , Dieldrín/sangre , Exposición a Riesgos Ambientales , Femenino , Finlandia/epidemiología , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Sistema de Registros , Factores de Riesgo , Fumar , Adulto JovenRESUMEN
The population attributable fraction (PAF) is a useful measure for describing the expected change in an outcome if its risk factors are modified. Cohort studies allow researchers to assess the predictive value of the risk factor modification on the incidence of the outcome during a certain follow-up. Estimation of PAF for both mortality and morbidity in cohort studies with censored survival data has been developed in the recent years. So far, however, censoring due to death in the estimation of PAF for morbidity has been ignored, resulting in estimation of a quantity which is not relevant in practice as some people are likely to die during the follow-up. The risk factors related to the disease incidence may also be related to mortality, and modification of these risk factors is likely to delay the occurrence of both events. Thus, censoring due to death and the impact of risk factor modification must be considered when estimating PAF for disease incidence. We consider both and introduce two measures of disease burden: PAF for the incidence of disease during lifetime and PAF for the prevalence of disease in the population at a certain time. We demonstrate how consideration of censoring due to death changes the estimated PAF for disease incidence and its confidence interval. This underlines the importance of choosing a correct PAF measure depending on the outcome of interest and the risk factors of interest to obtain accurate and interpretable results.
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Bioestadística , Estudios de Cohortes , Incidencia , Prevalencia , Medición de Riesgo/estadística & datos numéricos , Adulto , Anciano , Consumo de Bebidas Alcohólicas/epidemiología , Índice de Masa Corporal , Simulación por Computador/estadística & datos numéricos , Intervalos de Confianza , Diabetes Mellitus Tipo 2/epidemiología , Ejercicio Físico , Femenino , Finlandia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Población , Factores de Riesgo , Fumar/epidemiologíaRESUMEN
OBJECTIVES: Lifestyle is less favourable among individuals suffering from psychiatric disorders. We studied whether psychotherapy brings along changes in lifestyle and whether these changes differ between short-term and long-term psychodynamic psychotherapy (SPP and LPP) and solution-focused therapy (SFT). METHODS: A total of 326 outpatients, 20-46 years of age, with mood or anxiety disorder were randomly assigned to LPP, SPP and SFT. The lifestyle variables considered were alcohol consumption, smoking, body mass index (BMI), leisure time exercise and serum cholesterol. The patients were monitored for three years from the start of treatment. RESULTS: During the three-year follow-up, BMI and serum cholesterol rose statistically significantly although no statistically significant trends were shown for alcohol consumption, smoking or exercise. SPP showed a disadvantage of increased alcohol consumption and serum cholesterol level when compared with LPP. SFT showed an advantage of reduced smoking in comparison with SPP. DISCUSSION: Small therapy-specific changes in lifestyle may be a result from psychotherapy treatment. These lifestyle changes are apparently more common in short-term therapy. More studies are needed to verify these findings.
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Trastornos de Ansiedad/terapia , Toma de Decisiones , Trastorno Depresivo/terapia , Estilo de Vida , Psicoterapia/métodos , Adulto , Consumo de Bebidas Alcohólicas/epidemiología , Trastornos de Ansiedad/diagnóstico , Trastornos de Ansiedad/psicología , Trastorno Depresivo/diagnóstico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Cese del Hábito de Fumar/estadística & datos numéricos , Factores de Tiempo , Adulto JovenRESUMEN
We investigated changes in the prevalence of obesity among Finnish adults (aged > or = 30 years) during a 20-year period. Data were derived from two cross-sectional nationally representative surveys (n = 13 844) in 1978-1980 and 2000-2001. Weight and height were measured using a standardized protocol. Obesity was defined as body mass index (BMI) > or = 30 kg m(-2). Cut-offs of BMI > or = 35 kg m(-2) and BMI > or = 40 kg m(-2) were also used. A 20-year difference in the prevalence of obesity was from 11.3% to 20.7% in men and from 17.9% to 24.1% in women. In 1978-1980, 1.1% of men and 3.8% of women had a BMI at least 35 kg m(-2). The corresponding prevalence was 3.9% in men and 6.8% in women 20 years later. The educational gradient in obesity diminished in 20 years because of the most prominent increase among highly educated men. Yet, 25% of men and 28% of women with low education are obese. Obesity increased in all age and educational groups over the 20-year period. It was highest among women and individuals with the lowest education, but the increase was most striking among well-educated men. A comprehensive public health strategy targeting the whole population and especially those with low education is urgently needed to halt the obesity epidemic.
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Índice de Masa Corporal , Obesidad/epidemiología , Adulto , Distribución por Edad , Factores de Edad , Anciano , Anciano de 80 o más Años , Estatura , Peso Corporal , Estudios Transversales , Escolaridad , Femenino , Finlandia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Vigilancia de la Población , Prevalencia , Distribución por Sexo , Factores de TiempoRESUMEN
OBJECTIVES: Potential risk factors and their roles in the aetiology of hip OA are poorly understood. We analysed several alleged risk factors predisposing to hip OA in a 22-yr prospective study. METHODS: A comprehensive health survey was carried out in 1978-80 in a nationally representative sample of adult Finns. In 2000-01, 1286 participants in that survey were invited for re-examination, and 909 agreed to participate. After excluding those with hip OA at the baseline and those who were no longer working, a total of 840 subjects constituted the present study population. Hip OA was diagnosed on the basis of a standardized clinical examination by physicians who applied uniform criteria both at the baseline and at the re-examination phase. RESULTS: After 22 yrs of follow-up, hip OA was diagnosed in 41 subjects (4.9%). Heavy manual labour predicted the risk of developing hip OA [adjusted odds ratio (OR) 6.7; 95% CI 2.3, 19.5]. Permanent damage as a consequence of any musculoskeletal injury was also an independent predictor of hip OA (adjusted OR 5.0; 95% CI 1.9, 13.3). BMI, smoking, alcohol intake and leisure time physical activity were not factors which were predictive for hip OA. CONCLUSION: Heavy physical stress at work and major musculoskeletal injuries are associated with an increased risk of developing clinically diagnosed hip OA.