Mediating pathways that link adverse childhood experiences with cardiovascular disease

OBJECTIVES

There is uncertainty about which factors mediate the association between adverse childhood experiences (ACEs) and cardiovascular disease (CVD). This could inform secondary prevention targets.

STUDY DESIGN

Mediation analysis of a prospective cohort study.

METHODS

English Longitudinal Study of Ageing (ELSA) wave 3 data (2006/7) were used to measure retrospective exposure to 12 individual ACEs and waves 2 to 4 (2004/5 to 2008/9) data to measure current exposure to potential mediators [smoking, physical activity, alcohol consumption, body mass index, depression, and C-reactive protein (CRP)]. Waves 4 to 9 ELSA data (2008/9 to 2018/19) were used to measure incident CVD. Cumulative ACE exposure was categorised into experiencing 0, 1 to 3, or ≥4 individual ACEs. Associations were tested between ACE categories, potential mediators, and incident CVD, to inform which variables were analysed in causal mediation models.

RESULTS

The analytical cohort consisted of 4547 participants (56% women), with a mean age of 64 years (standard deviation = 9 years). At least one ACE had been experienced by 45% of the cohort, and 24% developed incident CVD over a median follow-up period of 9.7 years (interquartile range: 5.3-11.4 years). After adjusting for potential confounders, experiencing ≥4 ACEs compared with none was associated with incident CVD [odds ratio (OR): 1.55; 95% confidence interval (CI): 1.10, 2.17], and the association of one to three ACEs compared with none was non-significant (OR: 1.08; 95% CI: 0.93, 1.24). There were two statistically significant mediators of the association between ≥4 ACEs and incident CVD: CRP and depression, which accounted for 10.7% and 10.8% of the association, respectively.

CONCLUSIONS

Inflammation and depression partially mediated the association between ACEs and CVD. Targeting these factors may reduce the future incidence of CVD.

Diagnosis of PTSD by Army Behavioral Health Clinicians: Are Diagnoses Recorded in Electronic Health Records?

OBJECTIVE

The study sought to identify the extent to which posttraumatic stress disorder (PTSD) diagnoses are recorded in the electronic health record (EHR) in Army behavioral health clinics and to assess clinicians' reasons for not recording them and treatment factors associated with recording or not recording the diagnosis.

METHODS

A total of 543 Army mental health providers completed the anonymous, Web-based survey. Clinicians reported clinical data for 399 service member patients, of whom 110 (28%) had a reported PTSD diagnosis. Data were weighted to account for sampling design and nonresponses.

RESULTS

Of those given a diagnosis of PTSD by their clinician, 59% were reported to have the diagnosis recorded in the EHR, and 41% did not. The most common reason for not recording was reducing stigma or protecting the service member's career prospects. Psychiatrists were more likely than psychologists or social workers to record the diagnosis.

CONCLUSIONS

Findings indicate that for many patients presenting with PTSD in Army behavioral health clinics at the time of the survey (2010), clinicians did not record a PTSD diagnosis in the EHR, often in an effort to reduce stigma. This pattern may exist for other diagnoses. Recent Army policy has provided guidance to clinicians on diagnostic recording practice. An important implication concerns the reliance on coded diagnoses in PTSD surveillance efforts by the U.S. Department of Defense (DoD). The problem of underestimated prevalence rates may be further compounded by overly narrow DoD surveillance definitions of PTSD.

Responses of Amblyomma americanum and Dermacentor variabilis to odorants that attract haematophagous insects

Carbon dioxide (CO(2) ), 1-octen-3-ol, acetone, ammonium hydroxide, L-lactic-acid, dimethyl trisulphide and isobutyric acid were tested as attractants for two tick species, Amblyomma americanum and Dermacentor variabilis (Acari: Ixodidae), in dose-response bioassays using Y-tube olfactometers. Only CO(2) , acetone, 1-octen-3-ol and ammonium hydroxide elicited significant preferences from adult A. americanum, and only CO(2) was attractive to adult D. variabilis. Acetone, 1-octen-3-ol and ammonium hydroxide were separately evaluated at three doses against CO(2) (from dry ice) at a field site supporting a natural population of A. americanum nymphs and adults. Carbon dioxide consistently attracted the highest number of host-seeking ticks. However, for the first time, acetone, 1-octen-3-ol and ammonium hydroxide were shown to attract high numbers of A. americanum. Further research is needed to determine the utility of these semiochemicals as attractants in tick surveillance and area-wide management programmes.