Liesbeth A D M van Osch

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BACKGROUND The Internet has become a popular medium for offering tailored and targeted health promotion programs to the general public. However, suboptimal levels of program use in the target population limit the public health impact of these programs. Optimizing program development is considered as one of the main processes to increase usage rates. (More)
OBJECTIVE The present study explores the behavioural impact of instrumentality and specificity of implementation intentions. METHOD At baseline, 764 participants in a smoking cessation contest were asked to formulate three implementation intentions on how they planned to cope with difficult situations. Two independent researchers evaluated all formulated(More)
Keratosis follicularis spinulosa decalvans (KFSD) is a rare X-chromosomal disorder. It consists of follicular hyperkeratosis of the skin, scarring alopecia of the scalp, absence of the eyebrows, and corneal degeneration. There is photophobia in childhood, but the symptoms tend to diminish after puberty, and prognosis for vision is good. Some heterozygotes(More)
Keratosis follicularis spinulosa decalvans (KFSD) is a rare X linked disease which is characterised by follicular hyperkeratosis of the skin and corneal dystrophy. Seven male patients and six female carriers are described. Special attention has been paid to the dermatological and ophthalmic markers of KFSD in patients and carriers. The most prominent(More)
OBJECTIVES The aim of the present study was to investigate the efficacy of a brief coping planning intervention to prevent smoking relapse in the context of a national smoking cessation contest ('Quit & Win'). DESIGN A controlled trial with three measurements was used to evaluate the efficacy of the coping planning intervention. METHODS Three on-line(More)
OBJECTIVE To assess a possible relationship between thyroid-stimulating hormone (TSH) levels, vascular risk factors, and Alzheimer disease (AD). METHODS TSH levels were measured in 178 AD patients (35 confirmed post mortem) and 291 cognitively screened control subjects who were all euthyroid (TSH: 0.5 to 6 mU/L). The risk of AD was determined in(More)
BACKGROUND Large discrepancies between people's intention to eat a healthy diet and actual dietary behavior indicate that motivation is not a sufficient instigator for healthy behavior. Research efforts to decrease this 'intention - behavior gap' have centered on aspects of self-regulation, most importantly self-regulatory planning. Most studies on the(More)
OBJECTIVE Risk perceptions play a pivotal role in health behaviour theories. Accurate measurement is essential in order to investigate the explanatory value and effectiveness of interventions influencing these beliefs. This study investigated the reliability and predictive validity of different risk perception operationalizations related to skin cancer and(More)
BACKGROUND Adherence to Internet-delivered lifestyle interventions using multiple tailoring is suboptimal. Therefore, it is essential to invest in proactive strategies, such as periodic email prompts, to boost re-use of the intervention. OBJECTIVE This study investigated the influence of content and timing of a single email prompt on re-use of an(More)
The present study explored the performance and psychosocial determinants of passive cancer detection behavior, that is, attentiveness to cancer symptoms, and medical help seeking, and investigated potential dependency between these two behaviors. A detailed telephone survey was conducted among 459 respondents, aged 55 years or older. The survey assessed(More)