Victor J. M. Pop

Internet-based cognitive behaviour therapy for symptoms of depression and anxiety: a meta-analysis

BACKGROUND We studied to what extent internet-based cognitive behaviour therapy (CBT) programs for symptoms of depression and anxiety are effective. METHOD A meta-analysis of 12 randomized controlled trials. RESULTS The effects of internet-based CBT were compared to control conditions in 13 contrast groups with a total number of 2334 participants. A meta-analysis on treatment contrasts resulted in a moderate to large mean effect size [fixed effects analysis (FEA) d=0.40, mixed effects analysis (MEA) d=0.60] and significant heterogeneity. Therefore, two sets of post hoc subgroup analyses were carried out. Analyses on the type of symptoms revealed that interventions for symptoms of depression had a small mean effect size (FEA d=0.27, MEA d=0.32) and significant heterogeneity. Further analyses showed that one study could be regarded as an outlier. Analyses without this study showed a small mean effect size and moderate, non-significant heterogeneity. Interventions for anxiety had a large mean effect size (FEA and MEA d=0.96) and very low heterogeneity. When examining the second set of subgroups, based on therapist assistance, no significant heterogeneity was found. Interventions with therapist support (n=5) had a large mean effect size, while interventions without therapist support (n=6) had a small mean effect size (FEA d=0.24, MEA d=0.26). CONCLUSIONS In general, effect sizes of internet-based interventions for symptoms of anxiety were larger than effect sizes for depressive symptoms; however, this might be explained by differences in the amount of therapist support.

Maternal hypothyroxinaemia during early pregnancy and subsequent child development: a 3‐year follow‐up study

objective To evaluate the impact of maternal hypothyroxinaemia during early gestation (fT4 below the lowest tenth percentile and TSH within the reference range: 0·15–2·0 mIU/l) on infant development, together with any subsequent changes in fT4 during gestation.

Internet-based cognitive behavioural therapy for subthreshold depression in people over 50 years old:a randomized controlled clinical trial

BACKGROUND Subthreshold depression is a highly prevalent condition and a risk factor for developing a major depressive episode. Internet-based cognitive behaviour therapy may be a promising approach for the treatment of subthreshold depression. The current study had two aims: (1) to determine whether an internet-based cognitive behaviour therapy intervention and a group cognitive behaviour therapy intervention are more effective than a waiting-list control group; and (2) to determine whether the effect of the internet-based cognitive behaviour therapy differs from the group cognitive behaviour therapy intervention. METHOD A total of 191 women and 110 men with subthreshold depression were randomized into internet-based treatment, group cognitive behaviour therapy (Lewinsohns Coping With Depression course), or a waiting-list control condition. The main outcome measure was treatment response after 10 weeks, defined as the difference in pre- and post-treatment scores on the Beck Depression Inventory (BDI). Missing data, a major limitation of this study, were imputed using the Multiple Imputation (MI) procedure Data Augmentation. RESULTS In the waiting-list control group, we found a pre- to post-improvement effect size of 0.45, which was 0.65 in the group cognitive behaviour therapy condition and 1.00 within the internet-based treatment condition. Helmert contrasts showed a significant difference between the waiting-list condition and the two treatment conditions (p=0.04) and no significant difference between both treatment conditions (p=0.62). CONCLUSIONS An internet-based intervention may be at least as effective as a commonly used group cognitive behaviour therapy intervention for subthreshold depression in people over 50 years of age.

Neonatal Effects of Maternal Hypothyroxinemia During Early Pregnancy

OBJECTIVE. We sought to examine the neurobehavioral profile of neonates who are born to women with hypothyroxinemia during early pregnancy. METHODS. Examined were 108 neonates who were born to mothers with low maternal free thyroid hormone (fT4 concentrations; <10th percentile) at 12 weeks’ gestation (case patients) and 96 neonates who were born to women whose fT4 values were between the 50th and 90th percentiles, matched for parity and gravidity (control subjects). Newborn development was assessed at 3 weeks of age using the Neonatal Behavioral Assessment Scale. Maternal thyroid function (fT4 and thyrotropin hormone) was assessed at 12, 24, and 32 weeks’ gestation. RESULTS. Infants of women with hypothyroxinemia at 12 weeks’ gestation had significantly lower scores on the Neonatal Behavioral Assessment Scale orientation index compared with subjects. Regression analysis showed that first-trimester maternal fT4 but not maternal TSH or fT4 later in gestation was a significant predictor of orientation scores. CONCLUSIONS. This study confirms that maternal hypothyroxinemia constitutes a serious risk factor for neurodevelopmental difficulties that can be identified in neonates as young as 3 weeks of age.

Maternal anxiety during pregnancy and subsequent infant development.

Abstract The association between maternal anxiety during pregnancy and child development was studied prospectively in a group of 105 healthy Caucasian women and their infants. Anxiety was measured with the State-Trait Anxiety Inventory at 32 weeks’ gestation. Infant development was measured at three weeks postpartum by means of the Neonatal Behavioral Assessment Scale, and at one and two years by means of the Bayley Scales of Infant Development. Findings of the present study showed that, even when controlled for a variety of confounding variables, high maternal anxiety levels during late pregnancy were associated with lower mental developmental scores at the age of 2 years. It is suggested that especially attention related processes may be affected, and should be studied in future research. If these findings are confirmed by future research, identification of highly anxious women during gestation may provide an important opportunity to start a support program in order to optimize later infant stimulation and caretaking.

Validation of the Edinburgh Depression Scale during pregnancy

BACKGROUND Untreated depression during pregnancy may have adverse outcomes for the mother and her child. Screening for depression in the general pregnant population is thus recommended. The Edinburgh Depression Scale (EDS) is widely used for postpartum depression screening. There is no consensus on which EDS cutoff values to use during pregnancy. The aim of the current study was to examine the predictive validity and concurrent validity of the EDS for all three trimesters of pregnancy. METHODS In a large unselected sample of 845 pregnant women, the sensitivity, specificity, and validity of the EDS were evaluated. The Composite International Diagnostic Interview (depression module) was used to examine the predictive validity of the EDS. The anxiety and somatization subscales of the Symptom Checklist 90 (SCL-90) were used to examine its concurrent validity. Only women with a major depressive episode were considered as cases. RESULTS The prevalence of depression decreased toward end term: 5.6%, 5.4%, and 3.4%. The EDS scores also decreased toward end term, while the SCL-90 subscale anxiety scores increased. The EDS showed high test-retest reliability and high concurrent validity with the SCL-90 anxiety and somatization subscales. The area under the receiver operating characteristic curve was high and varied between 0.93 and 0.97. A cutoff value of 11 in the first trimester and that of 10 in the second and third trimesters gave the most adequate combination of sensitivity, specificity, and positive predictive value. CONCLUSIONS The EDS is a reliable instrument for screening depression during pregnancy. A lower cutoff than commonly applied in the postpartum period is recommended.

Does the Edinburgh Postnatal Depression Scale measure anxiety

OBJECTIVE The existence of a separate anxiety and depression dimension within the Edinburgh Postnatal Depression Scale (EPDS) has been reported previously. However, the concurrent validity of this anxiety subscale was never evaluated. We investigated whether (1) this existence of an anxiety subscale could be confirmed and (2) it more highly correlated with other measures of anxiety than the total EPDS. METHODS The SCL-90-R, the EPDS, and the State-Trait Anxiety Inventory (STAI) were filled out by 197 pregnant women. A principal component analysis (PCA) was used for confirmation of the subscales and correlations were computed between the (subscales of the) EPDS and the other measures of anxiety. RESULTS The existence of an anxiety scale within the EPDS was confirmed. However, this subscale did not yield higher correlations with other measures of anxiety than did the total EPDS. CONCLUSION Investigators using the EPDS to screen for depression should realise that the instrument does not exclusively measure depression. It seems that both anxiety symptoms and depressive symptoms are more accurately measured when using the total 10-item EPDS than when using the subscales.

Menopausal Complaints Are Associated With Cardiovascular Risk Factors

It has been hypothesized that women with vasomotor symptoms differ from those without with respect to cardiovascular risk factors or responses to exogenous hormone therapy. We studied whether the presence and extent of menopausal complaints are associated with cardiovascular risk profile. Data were used from a population-based sample of 5523 women, aged 46 to 57 years, enrolled between 1994 and 1995. Data on menopausal complaints and potential confounders were collected by questionnaires. Total cholesterol, systolic and diastolic blood pressures, and body mass index were measured. Linear and logistic regression analyses were used to analyze the data. Night sweats were reported by 38% and flushing by 39% of women. After multivariate adjustment, women with complaints of flushing had a 0.27-mmol/L (95% CI: 0.15 to 0.39) higher cholesterol level, a 0.60-kg/m2 (95% CI: 0.35 to 0.84) higher BMI, a 1.59-mm Hg (95% CI: 0.52 to 2.67) higher systolic blood pressure, and a 1.09-mm Hg (95% CI: 0.48 to 1.69) higher diastolic blood pressure compared with asymptomatic women. Flushing was also associated with hypercholesterolemia (odds ratio: 1.52; 95% CI: 1.25 to 1.84) and hypertension (OR: 1.20; 95% CI: 1.07 to 1.34). Results were similar for complaints of night sweating. The findings support the view that menopausal complaints are associated with a less favorable cardiovascular risk profile. These findings substantiate the view that differences in the presence of menopausal symptoms as a reason for using hormone therapy could explain discrepant findings between observational research and trials.

Menopausal transition and increased depressive symptomatology: a community based prospective study.

OBJECTIVE Prevalence of depression is suggested to be substantially higher in women around menopause. Declining estrogen levels might be an explanation. This study attempts to determine whether depressive symptomatology in healthy women is independently related to menopausal transition. METHOD All caucasian women born between 1941 and 1947, living in the city of Eindhoven the Netherlands were invited to take part in a screening program (n=8098) of whom 78% participated (n=6648). About 92% returned the questionnaires of which 81% (n=4975) was fully completed. Women using estrogens and/or having undergone hysterectomy and/or ovariectomy were excluded (43.6%). Of the remaining 2820 women, after 3.5 years, 2748 returned another postal questionnaire, of which 76% was fully completed (n=2103). Depressive symptomatology was assessed using the Edinburgh Depression Scale (EDS). Independent relationship between an intra-individual change in EDS score during the follow-up period and menopausal transition was analysed by multiple logistic regression (enter as well as stepwise method). RESULTS Beside the classical determinants of depression (unemployment OR 3.1, CI 1.6-5.8, inability to work OR 1.7, CI 1.0-2.8, financial problems OR 2.9, CI 1.1-7.3 death of a partner OR 2.6, CI 1.1-6.1, death of a child OR 5.9, CI 1.1-32.1 and a previous episode of depression OR 2.0, CI 1.5-2.7) transition from pre to perimenopause and peri to postmenopause was significantly related to a high increase (>5.4) of the EDS score (OR 1.8, CI 1.1-3.3 and OR 1.8, CI 1.5-2.7, respectively). CONCLUSION The transition from pre to perimenopause as well as from peri to postmenopause seems to be independently related to a high increase of depressive symptomatology. This suggests that the decrease of ovarian estrogen production is a risk factor for depressive symptomatology.

Loci at chromosomes 13, 19 and 20 influence age at natural menopause

We conducted a genome-wide association study for age at natural menopause in 2,979 European women and identified six SNPs in three loci associated with age at natural menopause: chromosome 19q13.4 (rs1172822; –0.4 year per T allele (39%); P = 6.3 × 10−11), chromosome 20p12.3 (rs236114; +0.5 year per A allele (21%); P = 9.7 × 10−11) and chromosome 13q34 (rs7333181; +0.5 year per A allele (12%); P = 2.5 × 10−8). These common genetic variants regulate timing of ovarian aging, an important risk factor for breast cancer, osteoporosis and cardiovascular disease.