Pathways Through Which Health Literacy Is Linked to Parental Oral Health Behavior in an American Indian Tribe.

BACKGROUND: Health literacy (HL) is the "ability to find, understand, evaluate and put information to use to improve decision making and, ultimately, improve health and quality of life." Parents with limited HL are less likely to follow recommended parental oral health behaviors. PURPOSE: We tested a theoretical framework designed to clarify mechanisms through which HL may influence parental oral health behavior. The framework proposed that HL: (a) has a direct effect on parental oral health knowledge, beliefs (i.e. self-efficacy; perceived susceptibility, severity, benefits, barriers), and behavior; (b) influences beliefs indirectly through knowledge; and (c) influences behavior indirectly through knowledge and beliefs. METHODS: We analyzed cross-sectional data from a randomized controlled trial designed to reduce dental decay in American Indian children (N = 521). Parents completed survey questions assessing sociodemographic characteristics, HL, and parental oral health knowledge, beliefs, and behavior. Path analysis was used to test the framework. RESULTS: HL exerted significant direct effects on knowledge and beliefs but not behavior. HL had significant indirect effects on all beliefs through knowledge. Significant indirect effects of HL on behavior occurred through self-efficacy (estimate: 0.99, 95% CI: 0.42, 1.83, p = .005), perceived barriers (estimate: 0.73, 95% CI: 0.29, 1.43, p = .010), knowledge to self-efficacy (estimate: 0.57, 95% CI: .31, 0.98, p = .001), and knowledge to perceived barriers (estimate: 0.24, 95% CI: 0.09, 0.47, p = .012). CONCLUSIONS: HL exerted an indirect effect on parental oral health behavior, with knowledge, self-efficacy, and perceived barriers being the primary constructs linking HL to behavior.

The basic research factors questionnaire for studying early childhood caries.

BACKGROUND: We describe development of the Early Childhood Caries (ECC) Basic Research Factors Questionnaire (BRFQ), a battery of measures assessing common potential predictors, mediators, and moderators of ECC. Individual-, family-, and community-level factors that are linked to oral health outcomes across at-risk populations are included. Developing standard measures of factors implicated in ECC has the potential to enhance our ability to understand mechanisms underlying successful prevention and to develop more effective interventions. METHODS: The Early Childhood Caries Collaborating Centers (EC4), funded by National Institute of Dental and Craniofacial Research, developed the BRFQ, which was used across four randomized trials to develop and test interventions for reducing ECC in at-risk populations. Forty-five investigators from across the centers and NIDCR were involved in the development process. Eight "measures working groups" identified relevant constructs and effective measurement approaches, which were then categorized as "essential" or "optional" common data elements (CDEs) for the EC4 projects. RESULTS: Essential CDEs include 88 items, with an additional 177 measures categorized as optional CDEs. Essential CDEs fell under the following domains: oral health knowledge, oral health behavior, utilization/insurance and cost, parent/caregiver dental self-efficacy, quality of life, caregiver and family characteristics, and child characteristics. CONCLUSIONS: The BRFQ makes available a battery of measures that support efforts to understand population risk factors for ECC and to compare oral health outcomes across populations at risk. The BRFQ development process may be useful to other clinical research networks and consortia developing CDEs in other health research fields. TRIAL REGISTRATION: All the trial that used the BRFQ were registered at Clinicaltrial.gov NCT01116726 , April 29, 2010; NCT01116739 , May 3, 2010; NCT01129440 , May 21, 2010; and NCT01205971 , September 19, 2010.

Validation of a pediatric oral health-related quality of life scale in Navajo children.

BACKGROUND: American Indian (AI) children experience the highest rates of early childhood caries (ECC) in the USA, yet no tool has been validated to measure the impact of ECC on their oral health-related quality of life (OHRQoL). OBJECTIVE: To validate a pediatric OHRQoL scale in a preschool, rural, reservation-based AI population. METHODS: In 2011 and 2012, we measured the OHRQoL of AI children attending Head Start in Navajo Nation with the 12-item preschool version of the pediatric oral health-related quality of life (POQL) scale administered to their parents/caregivers. Parents/caregivers also reported their children's subjective oral health status (OHS) and oral health behavior adherence. Concurrently, calibrated dental examiners measured the children's decayed, missing, and filled tooth surfaces (dmfs). Validation was assessed with internal reliability and convergent and divergent validity testing and exploratory factor analyses. RESULTS: We measured the outcomes in 928 caregiver-child dyads. All children were AI and in preschool [mean (SD) child age was 4.1 (0.5) years]. The majority of children had experienced decay [dmfs: 89 %, mean (SD): 21.5 (19.9)] and active decay [any ds: 70 %, mean (SD): 6.0 (8.3)]. The mean (SD) overall POQL score was 4.0 (9.0). The POQL scale demonstrated high internal consistency reliability (Cronbach alpha = 0.87). Convergent validity of the POQL scale was established with highly significant associations between POQL and caries experience, OHS, and adherence to oral health behaviors (all ps < 0.0001). CONCLUSIONS: The POQL scale is a reliable and valid measure of OHRQoL in preschoolers from the Navajo Nation.

Patterns of Change in Parental Health Literacy in Relation to Children's Oral Health.

BACKGROUND: Although health literacy (HL) skills may change over time, most research treats HL as a constant, using baseline HL to predict other health-related constructs. Few studies have explored change in HL over time. OBJECTIVE: We examined person-level differences in HL trajectories. We identified subgroups (latent classes) based on longitudinal assessments of HL and examined the association of class membership with demographic and oral health variables. METHODS: We used four measurement waves of parental HL data, reflecting the risk of limited HL, collected as part of an intervention to reduce dental decay in American Indian children (N = 579 parent-child dyads at baseline). Repeated measures latent class analysis (RMLCA) models were estimated to identify subgroups of HL trajectories over time. We examined class membership in association with baseline demographics and with 36-month assessments of parental oral health knowledge, beliefs, and behaviors as well as pediatric oral health. KEY RESULTS: A four-class model best fit the data. The largest class (high HL; 49.7% of the sample) was characterized by high levels of HL at all waves. A second class (improving HL; 17.7%) improved over all waves. The remaining two classes were characterized as moderate HL (20%) and low HL (12.6%) and maintained relatively stable HL levels over time. Higher educational attainment was associated with membership in the high HL and improving HL classes. Older age among this young-adult sample and higher income also were associated with high HL class membership. Parents in the high HL and improving HL classes exhibited more favorable performance on measures of oral health knowledge, beliefs, and behavioral adherence than did those in the other classes. Class membership was not associated with pediatric oral health. CONCLUSIONS: RMLCA demonstrated person-level variability in HL trajectories. Longitudinal patterns were associated with baseline demographics and prospectively with parental oral health knowledge, beliefs, and behaviors, but not with pediatric oral health. [HLRP: Health Literacy Research and Practice. 2023;7(2):e89-e98.].

Influence of Parental Health Literacy on Change over Time in the Oral Health of American Indian Children.

In cross-sectional studies, parental health literacy (HL) is associated with children's oral health. It is unclear, however, whether HL influences pediatric outcomes. We examined the relationship of HL with change over time in parental oral health knowledge, beliefs, and behaviors, as well as pediatric oral health outcomes. We used longitudinal data from a study designed to reduce dental decay in American Indian children (N = 579). At baseline and annually for three years, parents answered questions assessing HL; oral health knowledge, beliefs, and behaviors; and pediatric oral health status. The number of decayed, missing, and filled tooth surfaces (dmfs) was computed based on annual dental evaluations. Linear mixed models showed that HL was significantly associated with all constructs, except dmfs, at their reference time points and persistently across the three-year study period. HL predicted change over time in only one variable, parents' belief that children's oral health is determined by chance or luck. HL is strongly associated with oral health knowledge, beliefs, behaviors, and status prospectively but is not a key driver of change over time in these oral health constructs.

Longitudinal Association of Health Literacy with Parental Oral Health Behavior.

BACKGROUND: Prior studies suggest that parents with limited health literacy (HL) may be less likely to engage in oral health practices known to protect children's oral health. Earlier work has relied on cross-sectional data, however, so it is unclear whether HL influences parental behavior or is merely correlated with it. OBJECTIVE: We sought to clarify the impact of HL on subsequent adherence to parental oral health practices. METHODS: This secondary analysis used survey data from a randomized controlled trial designed to reduce dental decay in American Indian children (N = 579). We used path analysis to test a theoretical framework developed to clarify the mechanisms through which HL might influence parental oral health behavior. The framework proposed that HL (1) has a direct effect on parental oral health knowledge, beliefs (i.e., self-efficacy, perceived susceptibility, perceived severity, perceived barriers, perceived benefits), and behavior; (2) has an indirect effect on beliefs through knowledge; and (3) has an indirect effect on behavior through knowledge and beliefs. To test expectations regarding the temporal precedence of the constructs, we examined the association of HL at baseline with knowledge at the 12-month time point, beliefs at 24 months, and behavior at 36 months. KEY RESULTS: HL had significant direct effects on knowledge and specific beliefs (i.e., self-efficacy, perceived susceptibility, perceived barriers), but not on behavior. HL had significant indirect effects on beliefs-except perceived susceptibility-through knowledge. HL had significant indirect effects on behavior, through knowledge and beliefs. Both HL and knowledge had significant total effects on subsequent parental oral health behavior. CONCLUSIONS: HL influenced behavior measured 3 years later through its impact on parental oral health knowledge and beliefs. Our results highlight the importance of addressing HL in development of oral health promotion efforts aimed at protecting the teeth of young Native children. [HLRP: Health Literacy Research and Practice. 2021;5(4):e333-e341.] Plain Language Summary: It is unclear whether HL influences how parents care for their children's teeth. We analyzed data from a project to reduce dental decay in children. We found that HL impacted parents' oral health knowledge, beliefs, and behavior at later points in time. This suggests that HL may influence development of knowledge and beliefs that support positive behavior.

Parental Ethnic Identity and Its Influence on Children's Oral Health in American Indian Families.

OBJECTIVES: To examine the relationship between ethnic identity and oral health knowledge, beliefs, behavior, and outcomes in American Indian families. METHODS: Secondary data were analyzed for 579 parent-child dyads in a randomized controlled trial aimed at reducing early childhood caries in a Northern Plains tribal community. Data included demographic characteristics; parental ethnic identity; oral health knowledge, beliefs, and behavior; and parental/pediatric oral health outcomes. Ethnic identity was assessed using two measures: perceived importance of tribal identity and tribal language proficiency. We examined the association of baseline ethnic identity with baseline and longitudinal oral health measures. RESULTS: At baseline, importance of tribal identity was significantly associated with several oral health beliefs, and one's locus of control measure (external-chance). Baseline scores on importance of tribal identity were also associated with one's oral heath belief (perceived severity), the same locus of control measure, and oral health knowledge and behavior over the three years of study follow up. Tribal language proficiency was not associated with any study measures at baseline, although it was associated with parental oral health status over the three years. CONCLUSIONS: Ethnic identity was associated with a range of oral health constructs expected to influence American Indian children's oral health.

Health Literacy and Parental Oral Health Knowledge, Beliefs, Behavior, and Status Among Parents of American Indian Newborns.

OBJECTIVE: To examine the relationship between health literacy (HL) and parental oral health knowledge, beliefs, behavior, and self-reported oral health status (OHS) among parents of American Indian (AI) children. METHODS: This analysis used baseline data from a randomized controlled trial that tested an oral health intervention with parents of AI newborns. Participants were recruited in parent-child dyads (N = 579). Parents completed items assessing sociodemographic characteristics, HL, and parental oral health knowledge, beliefs, behavior, and self-reported OHS. We examined the correlation of HL with each oral health construct, controlling for parent age and income. RESULTS: On average, parents felt quite confident in their HL skills, performed well on questions assessing parental oral health knowledge, and endorsed beliefs likely to encourage positive parental oral health behaviors (e.g., confidence that one can successfully engage in such behaviors). Parents with more limited HL had significantly less knowledge, perceived cavities to be less severe, perceived more barriers and fewer benefits to recommended oral health behaviors, were less confident they could engage in these behaviors, and were more likely to believe their children's oral health was under the control of the dentist or a matter of chance (P values < 0.001). Limited HL was not associated with behavior (P > 0.05) but was linked to worse self-reported OHS (P = 0.040). CONCLUSIONS: HL was associated with parental oral health knowledge, beliefs, and self-reported OHS. Oral health education interventions targeting AI families should facilitate development of knowledge and positive oral health beliefs among parents with more limited HL skills.

Association of Ethnic Identity with Oral Health Knowledge, Attitudes, Behavior, and Outcomes on the Navajo Nation.

American Indians and Alaska Natives (AI/ANs) experience poor oral health. Children and adults living on the Navajo Nation have a particularly high rate of dental decay. The literature suggests that health outcomes are often associated with the strength of one's ethnic identity. We investigated the association of ethnic identity among Native parents with oral health knowledge, attitudes, behavior, and outcomes. Analyses used baseline data from a randomized controlled trial designed to reduce dental decay among AI/AN preschoolers enrolled in the Navajo Nation Head Start Program. Greater perceived importance of ethnic identity was associated with better oral health knowledge and attitudes but was unassociated with oral health behavior and was linked to worse oral health status. Parents who were better able to speak their tribal language had greater confidence in their ability to manage their children's oral health, engaged in better oral health behavior, and reported better parental oral health status.

Validity of Measures Assessing Oral Health Beliefs of American Indian Parents.

OBJECTIVES: This aimed to validate measures of constructs included in an extended Health Belief Model (EHBM) addressing oral health beliefs among American Indian (AI) parents. METHODS: Questionnaire data were collected as part of a randomized controlled trial (n = 1016) aimed at reducing childhood caries. Participants were AI parents with a preschool-age child enrolled in the Navajo Nation Head Start program. Questionnaire items addressed five EHBM constructs: perceived susceptibility, severity, barriers, benefits, and parental self-efficacy. Subscales representing each construct underwent reliability and validity testing. Internal consistency reliability of each subscale was evaluated using Cronbach's alpha. Convergent validity was assessed using linear regression to evaluate the association of each EHBM subscale with oral health-related measures. RESULTS: Internal consistency reliability was high for self-efficacy (α = 0.83) and perceived benefits (α = 0.83) compared to remaining EHBM subscales (α < 0.50). Parents with more education (p < 0.0001) and income (p = 0.0002) perceived dental caries as more severe younger parents (ps = 0.02) and those with more education (ps < 0.0001) perceived greater benefits and fewer barriers to following recommended oral health behavior. Female parents (p < 0.0001) and those with more education (p = 0.02) had higher levels of self-efficacy. Parental knowledge was associated with all EHBM measures (ps < 0.0001) excluding perceived susceptibility (p > 0.05). Parents with increased self-efficacy had greater behavioral adherence (p < 0.0001), whereas lower behavioral adherence was associated with parents who reported higher perceived barriers (p < 0.0001). Better pediatric oral health outcomes were associated with higher levels of self-efficacy (p < 0.0001) and lower levels of perceived severity (p = 0.02) and barriers (p = 0.05). CONCLUSIONS: Results support the value of questionnaire items addressing the EHBM subscales, which functioned in a manner consistent with the EHBM theoretical framework in AI participants.

Validation and Impact of Caregivers' Oral Health Knowledge and Behavior on Children's Oral Health Status.

PURPOSE: To validate oral health knowledge and behavior measures from the Basic Research Factors Questionnaire, developed to capture specific themes contributing to children's oral health outcomes and the influence of caregivers. METHODS: Data were collected as part of a randomized clinical trial (n equals 992) aimed at reducing dental caries in young children. Participants were American Indian/Alaska Native caregivers with a three- to five-year-old child enrolled in a Navajo Nation Head Start Center. Caregivers completed the questionnaire at enrollment with concomitant evaluation of children for decayed, missing, and filled tooth surfaces (dmfs). Oral health knowledge and behavior outcomes were compared with convergent measures (participant sociodemographic characteristics, oral health attitudes, and indicators of oral health status). RESULTS: Caregiver oral health knowledge was significantly associated with education, income, oral health behavior, and all but one of the oral health attitude measures. Behavior was significantly associated with several measures of oral health attitudes and all but one measure of oral health status. As the behavior score improved, dmfs scores declined, child/caregiver overall oral health status improved, and pediatric oral health quality of life improved. CONCLUSIONS: Questionnaire measures were valid for predicting specific caregiver factors potentially contributing to children's oral health status.

Caregiver reported oral health-related quality of life in young American Indian children.

American Indian/Alaska Native (AI/AN) children experience high rates of dental decay, yet their pediatric oral health-related quality of life (POQL) has not been described. We measured POQL in AI children and compared it in children with reported excellent/very good/good versus fair/poor oral health status (OHS) and assessed association of OHS, child's age, dental service utilization, and dental insurance on POQL scores. Caregivers of 143 AI (100 %), young (mean age 25.1 months) children reported their POQL score as 4.2 (scale 0-100, lower score indicates better POQL); OHS as excellent (35 %), very good (27 %), good (21 %), fair (14 %), and poor (3 %); and utilization of urgent dental services (12 %). Worse POQL was associated with worse OHS (p = 0.01). After adjustment, worse POQL was associated with increased reported use of urgent dental services (p = 0.004). POQL of young AI children was generally favorable but worsened with increased utilization of urgent dental services.

Motivational interviewing with American Indian mothers to prevent early childhood caries: study design and methodology of a randomized control trial.

BACKGROUND: This randomized control trial assesses the effectiveness of motivational interviewing (MI) to encourage behavior change in new mothers relating to caries prevention when caring for their newborn American Indian (AI) infants and young AI children. METHODS/DESIGN: The study is a randomized control trial. We hypothesize that when motivational interviewing is added to enhanced community oral health education services, the new mothers will achieve greater reduction of caries experience in their AI children compared to those who are receiving enhanced community services (ECS) alone. Six hundred mothers or caregivers of AI newborns will be enrolled into the study and randomized to one of the two intervention groups over a two-year period. The children will be followed until the child's third birthday. A cost analysis of the study is being conducted in tandem with the enhanced community services, motivational interviewing behavioral interventions, and the dental screenings for the length of the study. DISCUSSION: The trial is now in the implementation phase and a number of threats to successful completion, such as recruitment and retention challenges in a vast, rural geographic area, have been addressed. The protocol provides a unique model for oral health interventions using principles of community-based participatory research and is currently on schedule to meet study objectives. If the study is successful, motivational interviewing intervention can be applied in AI communities to reduce ECC disparities in this disadvantaged population, with study of further applicability in other populations and settings. TRIAL REGISTRATION: ClinicalTrials.gov, NCT01116726.