Modeling longitudinal oral health status and pneumonia risk: secondary data analyses of an integrated dental-medical cohort

BACKGROUND

Mounting evidence indicates potential associations between poor oral health status (OHS) and increased pneumonia risk. Relative pneumonia risk was assessed in the context of longitudinally documented OHS.

METHODS

Electronic medical/dental patient data captured from 2007 through 2019 were retrieved from the integrated health records of Marshfield Clinic Health Systems. Participant eligibility initiated with an assessment of OHS, stratified into the best, moderate, or worst OHS groups, with the additional criterion of 'no pneumonia diagnosis in the past 90 days'. Pneumonia incidence was longitudinally monitored for up to 1 year from each qualifying dental visit. Models were assessed, with and without adjustment for prior pneumonia incidence, adjusted for smoking and subjected to confounding mitigation attributable to known pneumonia risk factors by applying propensity score analysis. Time-to-event analysis and proportional hazard modeling were applied to investigate relative pneumonia risk over time among the OHS groups.

RESULTS

Modeling identified associations between any incident pneumonia subtype and 'number of missing teeth' (p < 0.001) and 'clinically assessed periodontal status' (p < 0.01), which remained significant following adjustment for prior pneumonia incidence and smoking. The hazard ratio (HR) for 'any incident pneumonia' in the best OHS group for 'number of missing teeth' was 0.65, 95% confidence interval (CI) [0.54 - 0.79] (unadjusted) and 0.744, 95% CI [0.61 - 0.91] (adjusted). The HR for 'any incident pneumonia' in the best 'clinically assessed periodontal status' group was 0.72, 95% CI [0.58 - 0.90] (unadjusted) and 0.78, 95% CI [0.62 - 0.97] (adjusted).

CONCLUSION/CLINICAL RELEVANCE

Poor OHS increased pneumonia risk. Proactive attention of medical providers to patient OHS and health literacy surrounding oral-systemic disease association is vital, especially in high-risk populations.

Circannual variation in relative weight of children 5 to 16 years of age

BACKGROUND

Summer weight gain in children has been reported; however, this is usually based on two time points. Our objective was to investigate monthly variation in weight status.

METHODS

Cross-sectional, de-identified health records including height, weight and demographics, collected between 2007 and 2012 from South Central Wisconsin in 70 531 children age 5-16 years were analysed. The monthly averages in body mass index (BMI) z-score were analysed cross-sectionally followed by a paired analysis for a subset with one visit each during school and summer months.

RESULTS

BMI z-scores during the summer months (June-August) were lower than values during the school year (September-May). Of note, there was a rapid decrease in BMI z-scores from May to June, with June BMI z-score values being 0.065 units less (95% CI 0.046-0.085) than those in May, little change from June to August and a rapid increase between the August and September BMI z-scores.

CONCLUSION

The monthly pattern does not fully agree with previous two-point school-based studies. Results raise concern that the use of two time point measures of BMIs (early fall and late spring) is suboptimal for evaluation of circannual variation. We suggest that future evaluation of the effect of school-based or summer interventions utilizes additional measures in those periods so that a seasonal analysis can be performed.

Assessing Dental Hygienists' Communication Techniques for Use with Low Oral Health Literacy Patients

PURPOSE

This primary aim of this study was to assess communication techniques used with low oral health literacy patients by dental hygienists in rural Wisconsin dental clinics. A secondary aim was to determine the utility of the survey instrument used in this study.

METHODS

A mixed methods study consisting of a cross-sectional survey, immediately followed by focus groups, was conducted among dental hygienists in the Marshfield Clinic (Wisconsin) service area. The survey quantified the routine use of 18 communication techniques previously shown to be effective with low oral health literacy patients. Linear regression was used to analyze the association between routine use of each communication technique and several indicator variables, including geographic practice region, oral health literacy familiarity, communication skills training and demographic indicators. Qualitative analyses included code mapping to the 18 communication techniques identified in the survey, and generating new codes based on discussion content.

RESULTS

On average, the 38 study participants routinely used 6.3 communication techniques. Dental hygienists who used an oral health literacy assessment tool reported using significantly more communication techniques compared to those who did not use an oral health literacy assessment tool. Focus group results differed from survey responses as few dental hygienists stated familiarity with the term "oral health literacy." Motivational interviewing techniques and using an integrated electronic medical-dental record were additional communication techniques identified as useful with low oral health literacy patients.

CONCLUSION

Dental hygienists in this study routinely used approximately one-third of the communication techniques recommended for low oral health literacy patients supporting the need for training on this topic. Based on focus group results, the survey used in this study warrants modification and psychometric testing prior to further use.

Rural definition of health: a systematic literature review

BACKGROUND

The advent of patient-centered care challenges policy makers, health care administrators, clinicians, and patient advocates to understand the factors that contribute to effective patient activation. Improved understanding of how patients think about and define their health is needed to more effectively "activate" patients, and to nurture and support patients' efforts to improve their health. Researchers have intimated for over 25 years that rural populations approach health in a distinct fashion that may differ from their non-rural counterparts.

METHODS

We conducted a systematic review of the literature to assess the extent and strength of evidence for rural definition of health. Studies were eligible for inclusion if they were published in English, reported on original research and presented findings or commentary relevant to rural definition of health, were published over the last 40 years, and were based on observations of rural U.S., Canadian, or Australian populations. Two reviewers were assigned to each selected article and blinded to the other reviewer's comments. For discordant reviews, a third blinded review was performed.

RESULTS

Of the 125 published articles identified from the literature, 34 included commentary or findings relevant to a rural definition of health. Of these studies, 6 included an urban comparison group. Few studies compared rural and urban definitions of health directly. Findings relevant to rural definition of health covered a broad range; however, good health was commonly characterized as being able to work, reciprocate in social relationships, and maintain independence. This review largely confirmed many general characteristics on rural views of health, but also documented the extensive methodological limitations, both in terms of quantity and quality, of studies that empirically compare rural vs. urban samples. Most notably, the evidence base in this area is weakened by the frequent absence of parallel comparison groups and standardized assessment tools.

CONCLUSIONS

To engage and activate rural patients in their own healthcare, a better understanding of the health beliefs in rural populations is needed. This review suggests that rural residents may indeed hold distinct views on how to define health, but more rigorous studies are needed to confirm these findings.