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J D Hooi

Publications and source records attributed to J D Hooi.

6 recordsLinked to original sources
PubMed2004

Asymptomatic peripheral arterial occlusive disease predicted cardiovascular morbidity and mortality in a 7-year follow-up study.

OBJECTIVE: Asymptomatic peripheral arterial occlusive disease (PAOD) is a common atherosclerotic disorder among the elderly population. Scarce data are available on the risk of nonfatal and fatal cardiovascular diseases in these subjects. We investigated cardiovascular morbidity and mortality of asymptomatic PAOD subjects. STUDY DESIGN AND SETTING: A sample of 3649 subjects (40-78 years of age) was selected in collaboration with 18 general practice centers and followed up after the initial screening (mean follow-up time 7.2 years). Asymptomatic PAOD was determined by means of the ankle-brachial pressure index (ABPI). Main outcome measures were nonfatal cardiovascular events and mortality. RESULTS: Cox proportional hazard models showed that asymptomatic PAOD was significantly associated with cardiovascular morbidity (hazard ratio [HR] 1.6, 95% confidence interval [CI] 1.3-2.1), total mortality (HR 1.4, 95% CI 1.1-1.8), and cardiovascular mortality (HR 1.5, 95% CI 1.1-2.1). CONCLUSION: Asymptomatic PAOD is a significant predictor of cardiovascular morbidity and mortality. In high-risk subjects, measurement of the ABPI provides valuable information on future cardiovascular events.

Adult↗
PubMed2002

[Reported cases of Legionella pneumonia in the Netherlands, 1987-2000].

OBJECTIVE: To describe the incidence and mortality of legionnaires' disease (LD) in the Netherlands on the basis of registration, with a focus on possible sources of infection, and geographic and seasonal variations. DESIGN: Retrospective, descriptive. METHOD: The incidence and mortality rate of LD from July 1987 until December 2000 was described using registration data from the Dutch Health Inspectorate. Possible sources of infection were also listed (patients involved in the Bovenkarspel outbreak (1999) were excluded). Geographic variations in occurrence of LD were investigated by incidences computed per province. To gain insight into the possible existence of seasonal variations the mean numbers of patients per month were compared. RESULTS: During the period of interest a total of 806 persons with LD were reported, 36 of whom were excluded. The mean incidence rose from 0.27 cases per 100,000 inhabitants in the 1987-1998 period to 0.91 cases per 100,000 inhabitants in the 1999-2000 period. The male:female ratio was 2.6:1. A total of 96 persons (12.5%) died as a result of LD. There were more deaths in the group of patients with confirmed LD compared to the group of patients with probable LD. After 1998 the case fatality rate was lower than in the previous period (Fisher's exact test: p = 0.005). The potential source of infection was situated in the open population in 92.9% of cases. In 7.1% of cases the potential source was situated in a hospital. The incidence per province varied from 0.13 per 100,000 (Drente) to 0.66 per 100,000 (Limburg). During the summer months more patients were reported, most of whom had contracted the infection abroad. In contrast to the 1987-1998 period, after 1998 the incidence in the Netherlands was higher than the European mean and the incidence of confirmed LD was higher than in the United States.

Adolescent↗
PubMed2001

Incidence of and risk factors for asymptomatic peripheral arterial occlusive disease: a longitudinal study.

The current study describes the age- and sex-specific incidence rates and risk factors for asymptomatic and symptomatic peripheral arterial occlusive disease (PAOD) among 2,327 subjects and the incidence of intermittent claudication in asymptomatic PAOD subjects. The study population was selected from 18 general practice centers in the Netherlands. PAOD was assessed with the ankle-brachial blood pressure index, and intermittent claudication was assessed with a modified version of the Rose questionnaire. After 7.2 years, the overall incidence rate for asymptomatic PAOD, using the person-years method, was 9.9 (95% confidence interval (CI): 7.3, 18.8) per 1,000 person-years at risk. The rate was 7.8 (95% CI: 4.9, 20.3) for men and 12.4 (95% CI: 7.7, 24.8) for women. For symptomatic PAOD, the incidence rate was 1.0 (95% CI: 0.7, 7.5) overall, 0.4 (95% CI: 0.3, 10.0) for men, and 1.8 (95% CI: 1.0, 10.3) for women. Multivariate analyses showed that increasing age, smoking, hypertension, and diabetes mellitus were the most important risk factors. The overall incidence rate for intermittent claudication among PAOD subjects who were asymptomatic at baseline was 90.5 per 1,000 person-years at risk (95% CI: 36.4, 378.3). The incidence of asymptomatic PAOD was higher than the incidence of symptomatic PAOD, with women developing PAOD more often than men. In the development of preventive strategies, modification of atherosclerotic risk factors, such as smoking, hypertension, and diabetes, should be the main goals.

Adult↗
PubMed1999

The prognosis of non-critical limb ischaemia: a systematic review of population-based evidence.

BACKGROUND: Peripheral arterial occlusive disease (PAOD) is the most common peripheral vascular disorder in the elderly. A clear picture of the disease's course, especially in patients with non-critical limb ischaemia (Fontaine stages I and II), is essential for the general practitioner, who plays a key role in the diagnosis and management of PAOD. AIM: To evaluate the population-based evidence on the course and prognosis of PAOD. METHODS: An exhaustive literature search yielded 16 population-based studies on the prognosis of PAOD. The methodological qualities of the studies were assessed according to eight criteria. RESULTS: Thirteen studies of high methodological quality show that data on the course, cardiovascular morbidity, and mortality of asymptomatic PAOD are scarce. Only a small group of asymptomatic patients seem to develop intermittent claudication symptoms. However, asymptomatic patients appear to have the same increased risk for cardiovascular morbidity and mortality when compared with claudicants. No data were available on prognostic factors for intermittent claudication and cardiovascular morbidity in asymptomatic patients. The course, cardiovascular morbidity, and mortality of symptomatic PAOD are better documented. A small group of claudicants experience symptom progression. Smoking, hypertension, increasing age, and diabetes are the most relevant risk factors for intermittent claudication. Claudicants are at a higher risk for developing other cardiovascular diseases, resulting in a significantly increased mortality mainly owing to coronary heart disease. Intermittent claudication and a low ankle-brachial pressure index are significant predictors of mortality. Men had intermittent claudication and symptom progression more often than women. Cardiovascular (co-)morbidity was common in both male and female PAOD patients, but male PAOD patients had a higher mortality compared with female PAOD patients. CONCLUSION: Given the current knowledge on the prognosis of PAOD in the general population, an important task for (secondary) prevention is reserved for the general practitioner. Further research is required to document the course and prognosis of asymptomatic PAOD patients.

Adult↗
PubMed1998

Risk factors and cardiovascular diseases associated with asymptomatic peripheral arterial occlusive disease. The Limburg PAOD Study. Peripheral Arterial Occlusive Disease.

OBJECTIVES: To describe the risk-factor profile and cardiovascular comorbidity of asymptomatic peripheral arterial occlusive disease (PAOD). DESIGN: A cross-sectional survey. Asymptomatic PAOD was defined as an ankle-brachial pressure index < 0.95, measured on two consecutive occasions, without intermittent claudication. Logistic regression analyses were performed to investigate independent associations between age, gender, smoking status, hypertension, obesity, diabetes, hypercholesterolaemia, physical activity, a family history of cardiovascular disease, the occurrence of ischaemic heart disease and cerebrovascular disease (CeVD) and asymptomatic PAOD. SETTING: 18 general practices in the province of Limburg, the Netherlands. SUBJECTS: A total of 3650 subjects, aged 40-78 years. MAIN RESULTS: Asymptomatic PAOD was present in 8.6% (n = 314) and symptomatic disease in 3.8% (n = 138) of the participants. Age, smoking status, hypertension, and diabetes were significantly associated with asymptomatic PAOD. The ratio of asymptomatic to symptomatic PAOD was higher among the younger age groups. Male gender, hypertension and smoking status were stronger associated with symptomatic PAOD compared with asymptomatic PAOD. Asymptomatic subjects had more IHD and CeVD comorbidity compared with the healthy population. CONCLUSION: Our findings suggest that the risk-factor profile and cardiovascular comorbidity of asymptomatic subjects is comparable to claudicants. Preventive efforts could be made to diminish the influence of especially smoking, diabetes and hypertension in asymptomatic subjects.

Adult↗