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"Curtis, Laura M"
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Skill Set or Mind Set? Associations between Health Literacy, Patient Activation and Health
2013
There is ongoing debate on whether health literacy represents a skill-based construct for health self-management, or if it also more broadly captures personal 'activation' or motivation to manage health. This research examines 1) the association between patient activation and health literacy as they are most commonly measured and 2) the independent and combined associations of patient activation and health literacy skills with physical and mental health.
A secondary analysis of baseline cross-sectional data from the LitCog cohort of older adults was used. Participants (n = 697) were recruited from multiple US-based health centers. During structured face-to-face interviews, participants completed the Test of Functional Health Literacy in Adults (TOFHLA), the Patient Activation Measure (PAM), the SF-36 physical health summary subscale, and Patient Reported Outcomes Measurement Information Service (PROMIS) short form subscales for depression and anxiety.
The relationship between health literacy and patient activation was weak, but significant (r = 0.11, p<0.01). In models adjusted for participant characteristics, lower health literacy was associated with worse physical health (β = 0.13, p<0.001) and depression (β = -0.16, p<0.001). Lower patient activation was associated with worse physical health (β = 0.19, p<0.001), depression (β = -0.27, p<0.001) and anxiety (β-0.24, p<0.001).
The most common measures of health literacy and patient activation are weakly correlated with each other, but also independently correlated with health outcomes. This suggests health literacy represents a distinct skill-based construct, supporting the Institute of Medicine's definition. Deficits in either construct could be useful targets for behavioral intervention.
Journal Article
What Did the Doctor Say? Health Literacy and Recall of Medical Instructions
by
Curtis, Laura M.
,
McCarthy, Danielle M.
,
Engel, Kirsten G.
in
Adult literacy
,
African American education
,
Aged
2012
Background: Limited literacy has repeatedly been linked to problems comprehending health information, although the majority of studies to date have focused on reading various print health materials. We sought to investigate patients' ability to recall spoken medical instructions in the context of a hypothetical clinical encounter, and whether limited health literacy would adversely affect performance on the task. Methods: A total of 755 patients aged 55 to 74 were recruited from 1 academic internal medicine clinic and 3 federally qualified health centers. Participants' health literacy skills and recall of spoken medical instructions for 2 standard hypothetical video scenarios [wound care, gastroesophageal reflux disease (GERD) diagnosis] were assessed. Results: The majority (71.6%) of participants had adequate health literacy skills, and these individuals performed significantly better in correctly recalling spoken information than those with marginal and low literacy in both scenarios: [wound care—mean (SD): low 2.5 (1.3) vs. marginal 3.5 (1.3) vs. adequate 4.6 (1.1); P < 0.001), GERD: low 4.2(1.7) vs. marginal 5.2 (1.7) vs. adequate 6.5 (1.7); P < 0.001]. Regardless of literacy level, overall recall of information was poor. Few recognized pain (28.5%) or fever (28.2%) as signs of infection. Only 40.5% of participants correctly recalled when to take their GERD pills. Conclusions: Many older adults may have difficulty remembering verbal instructions conveyed during clinical encounters. We found those with lower health literacy to have poorer ability to recall information. Greater provider awareness of the impact of low health literacy on the recall of spoken instructions may guide providers to communicate more effectively and employ strategies to confirm patient understanding.
Journal Article
Change in Health Literacy over a Decade in a Prospective Cohort of Community-Dwelling Older Adults
by
Opsasnick Lauren
,
Curtis, Laura M
,
Eifler Morgan
in
Adults
,
Correlation analysis
,
Health education
2021
BackgroundHealth literacy is often viewed as a static trait in longitudinal studies, which may over or underestimate an individual’s ability to manage one’s health.ObjectivesWe sought to examine health literacy over time among older adults using three widely used measures.DesignA prospective cohort study.ParticipantsCommunity-dwelling adults ages 55 to 74 at baseline with at least one follow-up visit (N = 656) recruited from one academic internal medicine clinic and six community health centers in Chicago, IL.MeasuresHealth literacy was measured using the Test of Functional Health Literacy in Adults (TOFHLA), Newest Vital Sign (NVS), and Rapid Estimate of Adult Literacy in Medicine (REALM) at baseline and up to three follow-up time points.ResultsIn unadjusted analyses, significant changes since baseline were found beginning at the second follow-up (mean (M) = 6.0 years, SD = 0.6) for the TOFHLA (M = − 0.9, SD = 0.95, p = 0.049) and the REALM (M = 0.3, SD = 2.5, p = 0.004) and at the last follow-up (M = 8.6 years, SD = 0.5) for the NVS (M = − 0.2, SD = 1.4, p = 0.02). There were non-linear effects of baseline age on TOFHLA and NVS scores over time (piecewise cubic spline p = 0.01 and p < 0.001, respectively) and no effect on REALM scores (B = 0.02, 95% CI − 0.01 to 0.04, p = 0.17) using multivariable mixed-effects linear regression models, controlling for race, education, income, and comorbidity.ConclusionWe found a negative relationship between age and health literacy over time as measured by the TOFHLA and NVS. Health literacy barriers appear to be more prevalent among individuals in later life, when self-care demands are similarly increasing. Clinicians might consider strategies to assess and respond to limited health literacy, particularly among patients 70 and older. REALM performance remained stable over 10 years of follow-up. This questions whether health literacy tools measure the same attribute. Prospective health literacy studies should carefully consider what measures to use, depending on their objective.
Journal Article
Low health literacy predicts decline in physical function among older adults: findings from the LitCog cohort study
2015
Background Limited health literacy is associated with worse physical function in cross-sectional studies. We aimed to determine if health literacy is a risk factor for decline in physical function among older adults. Methods A longitudinal cohort of 529 community-dwelling American adults aged 55–74 years were recruited from an academic general internal medicine clinic and federally qualified health centres in 2008–2011. Health literacy (Newest Vital Sign), age, gender, race, education, chronic conditions, body mass index, alcohol consumption, smoking status and exercise frequency were included in multivariable analyses. The 10-item PROMIS (Patient-Reported Outcomes Measurement Information System) physical function scale was assessed at baseline and follow-up (mean=3.2 years, SD=0.39). Results Nearly half of the sample (48.2%) had either marginal (25.5%) or low health literacy (22.7%). Average physical function at baseline was 83.2 (SD=16.6) of 100, and health literacy was associated with poorer baseline physical function in multivariable analysis (p=0.004). At follow-up, physical function declined to 81.9 (SD=17.3; p=0.006) and 20.5% experienced a meaningful decline (>0.5 SD of baseline score). In multivariable analyses, participants with marginal (OR 2.62; 95%CI 1.38 to 4.95; p=0.003) and low (OR 2.57; 95%CI 1.22 to 5.44; p=0.013) health literacy were more likely to experience meaningful decline in physical function than the adequate health literacy group. Entering cognitive abilities to these models did not substantially attenuate effect sizes. Health literacy attenuated the relationship between black race and decline in physical function by 32.6%. Conclusions Lower health literacy increases the risk of exhibiting faster physical decline over time among older adults. Strategies that reduce literacy disparities should be designed and evaluated.
Journal Article
Literacy, Cognitive Function, and Health: Results of the LitCog Study
by
Smith, Samuel G.
,
Waite, Katherine R.
,
Borosh, Beth
in
Aged
,
Biological and medical sciences
,
Cognition & reasoning
2012
ABSTRACT
BACKGROUND
Emerging evidence suggests the relationship between health literacy and health outcomes could be explained by cognitive abilities.
OBJECTIVE
To investigate to what degree cognitive skills explain associations between health literacy, performance on common health tasks, and functional health status.
DESIGN
Two face-to-face, structured interviews spaced a week apart with three health literacy assessments and a comprehensive cognitive battery measuring ‘fluid’ abilities necessary to learn and apply new information, and ‘crystallized’ abilities such as background knowledge.
SETTING
An academic general internal medicine practice and three federally qualified health centers in Chicago, Illinois.
PATIENTS
Eight hundred and eighty-two English-speaking adults ages 55 to 74.
MEASUREMENTS
Health literacy was measured using the Rapid Estimate of Adult Literacy in Medicine (REALM), Test of Functional Health Literacy in Adults (TOFHLA), and Newest Vital Sign (NVS). Performance on common health tasks were globally assessed and categorized as 1) comprehending print information, 2) recalling spoken information, 3) recalling multimedia information, 4) dosing and organizing medication, and 5) healthcare problem-solving.
RESULTS
Health literacy measures were strongly correlated with fluid and crystallized cognitive abilities (range: r = 0.57 to 0.77, all p < 0.001). Lower health literacy and weaker fluid and crystallized abilities were associated with poorer performance on healthcare tasks. In multivariable analyses, the association between health literacy and task performance was substantially reduced once fluid and crystallized cognitive abilities were entered into models (without cognitive abilities: β = −28.9, 95 % Confidence Interval (CI) -31.4 to −26.4, p; with cognitive abilities: β = −8.5, 95 % CI −10.9 to −6.0).
LIMITATIONS
Cross-sectional analyses, English-speaking, older adults only.
CONCLUSIONS
The most common measures used in health literacy studies are detecting individual differences in cognitive abilities, which may predict one’s capacity to engage in self-care and achieve desirable health outcomes. Future interventions should respond to all of the cognitive demands patients face in managing health, beyond reading and numeracy.
Journal Article
An electronic health record-based strategy to increase PrEP decision-making among cisgender women in primary care: results of a randomized pilot study
by
Yeh, Fangyu
,
Bailey, Stacy C.
,
O’Conor, Rachel
in
Adult
,
Antiretroviral drugs
,
Bacterial infections
2025
Background
Approximately one in five HIV infections in the United States occurs among cisgender women, those whose gender identity matches their sex assigned at birth. Pre-exposure prophylaxis (PrEP) is a highly effective preventive option for all genders, yet lack of awareness and stigma have hindered uptake. To address this gap, we sought to develop and pilot test an electronic health record-based strategy among cisgender women in primary care.
Methods
Our strategy, informed by prior work, identified cisgender women in primary care who might benefit from PrEP, provided them with person-centered PrEP educational materials via the patient portal, and offered an opportunity to electronically request a dedicated PrEP visit with a PrEP champion – a female primary care physician – if desired. We conducted two sequential patient-randomized pilot studies to test: (1) the efficacy of the materials compared to usual care, and (2) the preliminary effectiveness of our strategy compared to usual care. The primary outcomes for the efficacy study included PrEP knowledge and PrEP stigma, while the primary outcome for the preliminary effectiveness study was PrEP uptake over a three-month period.
Results
In total, we enrolled 200 women. The efficacy study (
n
= 100,
n
= 50 per arm) revealed our PrEP educational materials significantly increased PrEP knowledge scores among women who were directly shown the materials, compared to those who were not (9.4 (standard deviation (SD) 0.9) vs. 5.8 (SD 1.8) out of 10,
p
-value < 0.01, respectively). However, the preliminary effectiveness study (
n
= 100,
n
= 50 per arm) resulted in no significant differences, other than PrEP awareness, between women randomized to our strategy and those randomized to usual care.
Conclusions
PrEP educational materials have the potential to increase PrEP knowledge among cisgender women. For the patient portal to be an effective delivery channel, additional support efforts should be considered.
Trial registration
The study was registered at ClinicalTrials.Gov, Clinical Trial number NCT05709860 registered on 2023-01-17.
Journal Article
Protocol for a construct and clinical validation study of MyCog Mobile: a remote smartphone-based cognitive screener for older adults
by
Byrne, Greg J
,
Curtis, Laura M
,
Yoshino Benavente, Julia
in
Aged
,
aging
,
Clinical decision making
2024
IntroductionAnnual cognitive screening in older adults is essential for early detection of cognitive impairment, yet primary care settings face time constraints that present barriers to routine screening. A remote cognitive screener completed on a patient’s personal smartphone before a visit has the potential to save primary care clinics time, encourage broader screening practices and increase early detection of cognitive decline. MyCog Mobile is a promising new remote smartphone-based cognitive screening app for primary care settings. We propose a combined construct and clinical validation study of MyCog Mobile.Methods and analysisWe will recruit a total sample of 300 adult participants aged 65 years and older. A subsample of 200 healthy adult participants and a subsample of 100 adults with a cognitive impairment diagnosis (ie, dementia, mild cognitive impairment, cognitive deficits or other memory loss) will be recruited from the general population and specialty memory care centres, respectively. To evaluate the construct validity of MyCog Mobile, the healthy control sample will self-administer MyCog Mobile on study-provided smartphones and be administered a battery of gold-standard neuropsychological assessments. We will compare correlations between performance on MyCog Mobile and measures of similar and dissimilar constructs to evaluate convergent and discriminant validity. To assess clinical validity, participants in the clinical sample will self-administer MyCog Mobile on a smartphone and be administered a Mini-Cog screener and these data will be combined with the healthy control sample. We will then apply several supervised model types to determine the best predictors of cognitive impairment within the sample. Area under the receiver operating characteristic curve, accuracy, sensitivity and specificity will be the primary performance metrics for clinical validity.Ethics and disseminationThe Institutional Review Board at Northwestern University (STU00214921) approved this study protocol. Results will be published in peer-reviewed journals and summaries provided to the study’s funders.
Journal Article
LitCog Caregiver Cohort: a prospective, observational cohort study investigating US caregivers’ health literacy, self-care skills and cognitive function
by
Curtis, Laura M
,
Yoshino Benavente, Julia
,
Morrissey Kwasny, Mary
in
Activities of daily living
,
Aged
,
Aging
2023
IntroductionMany older adults receive assistance in managing chronic conditions. Yet complicating the utility of caregiver support is whether caregivers have sufficient skills to aid in a patient’s self-care. Health literacy and cognition are important determinants of older adults’ health outcomes, but few studies have examined caregiver health literacy, cognition and self-care skills and their relations to patient outcomes.Methods and analysisWe will expand an ongoing cognitive ageing cohort study (LitCog) to enroll a parallel caregiver cohort. Caregivers are eligible if they are (1) ≥18 years of age, (2) provided care for ≥6 months and (3) assisted with at least one activity of daily living, instrumental activity of daily living or health management task. Caregivers will complete interviews at time points corresponding with the LitCog participant interviews. Caregivers will complete assessments of health literacy, self-care skills, cognitive function, caregiver healthcare task difficulty, caregiver burden, caregiver self-efficacy, activation, technology use, busyness and routine and relationship quality. Caregivers will self-report the nature and intensity of care provided, and their own health status. Associations between caregiver presence and caregiver capacity with patient outcomes will be examined in a series of regression models, and mediating and moderating factors will be tested.Ethics and disseminationThe Institutional Review Board at Northwestern University has approved the study protocol (STU00026255). Results will be published in peer-reviewed journals and summaries will be provided to the funders of the study as well as patients and caregivers.
Journal Article
Pilot Testing of the MyCog Assessment: Rapid Detection of Cognitive Impairment in Everyday Clinical Settings
by
Hosseinian, Zahra
,
Curtis, Laura M
,
Gershon, Richard C
in
Cognitive ability
,
Cognitive impairment
,
Dementia
2023
Cognitive impairment (CI) and dementia can have profound social and emotional effects on older adults. Early detection of CI is imperative both to the identification of potentially treatable conditions and to provide services to minimize the effects of CI in cases of dementia. While primary care settings are ideal for identifying CI, it frequently goes undetected. We tailored a brief, iPad-based, cognitive assessment (MyCog) for primary care settings and piloted it in a sample of older adults. Eighty participants were recruited from an existing cohort study and completed a brief, in-person interview. CI was determined based on a diagnosis of dementia or CI in their medical record or based on a comprehensive cognitive battery performed within the past 18 months. MyCog had a sensitivity of 79% and specificity of 82%, offering a practical, scalable, primary care assessment for the routine case finding of cognitive impairment and dementia.
Journal Article
MidCog study: a prospective, observational cohort study investigating health literacy, self-management skills and cognitive function in middle-aged adults
2023
IntroductionThe lack of definitive means to prevent or treat cognitive impairment or dementia is driving intense efforts to identify causal mechanisms. Recent evidence suggests clinically meaningful declines in cognition might present as early as middle age. Studying cognitive changes in middle adulthood could elucidate modifiable factors affecting later cognitive and health outcomes, yet few cognitive ageing studies include this age group. The purpose of the MidCog study is to begin investigations of less-studied and potentially modifiable midlife determinants of later life cognitive outcomes.Methods and analysisMidCog is a prospective cohort study of adults ages 35–64, with two in-person interviews 2.5 years apart. Data will be collected from interviews, electronic health records and pharmacy fill data. Measurements will include health literacy, self-management skills, cognitive function, lifestyle and health behaviours, healthcare use, health status and chronic disease outcomes. Associations of health literacy and self-management skills with health behaviours and cognitive/health outcomes will be examined in a series of regression models, and moderating effects of modifiable psychosocial factors.Finally, MidCog data will be linked to an ongoing, parallel cohort study of older adults recruited at ages 55–74 in 2008 (‘LitCog’; ages 70–90 in 2023), to explore associations between age, health literacy, self-management skills, chronic diseases, health status and cognitive function among adults ages 35–90.Ethics and disseminationThe Institutional Review Board at Northwestern University has approved the MidCog study protocol (STU00214736). Results will be published in peer-reviewed journals and summaries will be provided to the funders of the study as well as patients.
Journal Article