Gerda M. van der Weele

Co-occurrence of depression and anxiety in elderly subjects aged 90 years and its relationship with functional status, quality of life and mortality

To examine the prevalence of concurrent depression and anxiety and its relationship with functional status, quality of life and mortality in individuals at age 90.

Subnormal vitamin B12 concentrations and anaemia in older people: a systematic review.

BackgroundPernicious anaemia is undeniably associated with vitamin B12 deficiency, but the association between subnormal vitamin B12 concentrations and anaemia in older people is unclear. The aim of this systematic review was to evaluate the association between subnormal vitamin B12 concentrations and anaemia in older people.MethodsClinical queries for aetiology and treatment in bibliographic databases (PubMed [01/1949-10/2009]; EMBASE [01/1980-10/2009]) were used. Reference lists were checked for additional relevant studies. Observational studies (≥50 participants) and randomized placebo-controlled intervention trials (RCTs) were considered.Results25 studies met the inclusion criteria. Twenty-one observational cross-sectional studies (total number of participants n = 16185) showed inconsistent results. In one longitudinal observational study, low vitamin B12 concentrations were not associated with an increased risk of anaemia (total n = 423). The 3 RCTs (total n = 210) were well-designed and showed no effect of vitamin B12 supplementation on haemoglobin concentrations during follow-up in subjects with subnormal vitamin B12 concentrations at the start of the study. Due to large clinical and methodological heterogeneity, statistical pooling of data was not performed.ConclusionsEvidence of a positive association between a subnormal serum vitamin B12 concentration and anaemia in older people is limited and inconclusive. Further well-designed studies are needed to determine whether subnormal vitamin B12 is a risk factor for anaemia in older people.

Effects of a stepped-care intervention programme among older subjects who screened positive for depressive symptoms in general practice: the PROMODE randomised controlled trial

OBJECTIVES to determine (cost)-effectiveness of a stepped-care intervention programme among subjects ≥ 75 years who screened positive for depressive symptoms in general practice. DESIGN the pragmatic cluster-randomised controlled trial with 12-month follow-up. SETTING sixty-seven Dutch general practices. SUBJECTS two hundred and thirty-nine subjects ≥ 75 years screened positive for untreated depressive symptoms (15-item Geriatric Depression Scale ≥ 5). METHODS usual care (34 practices, 118 subjects) was compared with the stepped-care intervention (33 practices, 121 subjects) consisting of three steps: individual counselling; Coping with Depression course; and-if indicated-referral back to general practitioner to discuss further treatment. Measurements included severity of depressive symptoms [Montgomery-Åsberg Depression Rating Scale (MADRS)], quality of life, mortality and costs. RESULTS at baseline subjects mostly were mildly/moderately depressed. At 6 months MADRS scores had improved more in the usual care than the intervention group (-2.9 versus -1.1 points, P=0.032), but not at 12 months (-3.1 versus -4.6, P=0.084). No significant differences were found within two separate age groups (75-79 years and ≥ 80 years). In intervention practices, 83% accepted referral to the stepped-care programme, and 19% accepted course participation. The control group appeared to have received more psychological care. CONCLUSIONS among older subjects who screened positive for depressive symptoms, an offered stepped-care intervention programme was not (cost)-effective compared with usual care, possibly due to a low uptake of the course offer. TRIAL REGISTRATION www.controlled-trials.com/ISRCTN 71142851v.

Yield and costs of direct and stepped screening for depressive symptoms in subjects aged 75 years and over in general practice

To examine yield and costs of two screening methods for depressive symptoms in subjects ≥75 years in general practice.

The influence of the administration method on scores of the 15-item Geriatric Depression Scale in old age

Many rating scales can be self-administered or interviewer-administered, and the influence of administration method on scores is unclear. We aimed to study this influence on scores of the Geriatric Depression Scale (GDS-15), used as a screening instrument in general practice. In two general practices 376 registered patients aged 75 years and older were asked to participate. Exclusion criteria were dementia and current treatment for depression. The GDS-15 was administered twice within 1 month: self-administered by mail, and interviewer-administered during home visits. The sequence of administering the methods was different for the two practices. We analyzed differences in total and item GDS-scores. Of 141 subjects who participated (response rate 55%) 59 were men (42%). Mean age was 81.4 years (SD 4.8). When the GDS-15 was self-administered, 33 subjects (23.4%) left items unanswered. There were no items unanswered when the GDS-15 was interviewer-administered. On average the self-administered total GDS scores were 0.70 points higher than interviewer-administered scores (95% confidence interval=0.41; 0.98), with a large range of variation in the scores (limits of agreement -2.69 to 4.08). Item-item comparisons showed high percentages of agreement. Chance-corrected agreement (kappa) was moderate to fair, but three items showed only slight agreement (kappa values <0.21). In conclusion, compared to interviewer-administered scores, scores on the GDS-15 when self-administered were higher. The method of administration should be taken into account when interpreting scores.

Older people coping with low mood: a qualitative study

Background: To gain new insight into support for older people with low mood, the perceptions, strategies, and needs of older people with depressive symptoms were explored. Methods: Two in-depth interviews were held with 38 participants (aged ≥77 years) who screened positive for depressive symptoms in general practice. To investigate the influence of the presence of complex health problems, 19 persons with and 19 without complex problems were included. Complex problems were defined as a combination of functional, somatic, psychological or social problems. Results: All participants used several cognitive, social or practical coping strategies. Four patterns emerged: mastery, acceptance, ambivalence, and need for support. Most participants felt they could deal with their feelings sufficiently, whereas a few participants with complex problems expressed a need for professional support. Some participants, especially those with complex problems, were ambivalent about possible interventions mainly because they feared putting their fragile balance at risk due to changes instigated by an intervention. Conclusion: Most older participants with depressive symptoms perceived their coping strategies to be sufficient. The general practitioners (GPs) can support self-management by talking about the (effectiveness of) personal coping strategies, elaborating on perceptions of risks, providing information, and discussing alternative options with older persons.