3. Results
The results section presents the analysis of communication difficulty among the Saudi population based on the 2017 Disability Survey and the 2017 Population Characteristics Survey. The findings are organised into 11 tables that provide detailed data on the distribution of disability by severity, gender, education, marital status, consanguinity, cause, duration, and type of disability (single vs. multiple) across administrative regions. Additionally,
Figure 1 provides a geographic overview of prevalence by region, offering a visual summary of the regional variation in communication difficulty. Each table focuses on a specific indicator or demographic variable, and percentages are included to facilitate interpretation. Together, these data illustrate the epidemiological profile of communication difficulty in Saudi Arabia, highlighting key patterns, disparities, and associations that are further explored in the discussion section.
Figure 1 illustrates the prevalence of communication difficulty across various administrative regions in Saudi Arabia, based on data from the 2017 Disability Survey. The national prevalence of communication difficulty is reported as 1.11%, with a range of 0.45% to 1.55% across regions. The figure highlights significant regional variations in prevalence rates. Notably, Aseer exhibits the highest prevalence at 1.55%, followed closely by Hail (1.38%) and Jazan (1.32%), indicating these regions have a disproportionately higher burden of communication difficulties compared to the national average. Conversely, Najran shows the lowest prevalence at 0.45%, suggesting a significantly lower incidence of communication difficulties in this region. The scatter plot in the lower left corner reveals a weak correlation between population size and the number of cases, as indicated by the scattered distribution of data points. The bar chart on the right further emphasises the variation in case numbers across regions, with Al-Riyadh and Makkah Al-Mokarramah reporting the highest number of cases due to their larger populations, despite having prevalence rates slightly above the national average. These findings underscore the need for targeted interventions and resource allocation in high-prevalence regions like Aseer, Hail, and Jazan, while also highlighting the importance of understanding the underlying factors contributing to these disparities.
The distribution of individuals with communication difficulty is presented by severity level and administrative region in
Table 1. Mild difficulty was the most frequently reported severity level, with the highest proportion observed in Al-Riyadh (26.9%) followed by Makkah Al-Mokarramah (21.4%). Severe difficulty was most reported in Makkah Al-Mokarramah (21.3%) and Al-Riyadh (17.9%). Extreme difficulty was most frequently reported in Makkah Al-Mokarramah (31.7%) and Al-Riyadh (23.3%). The two largest regions, Al-Riyadh and Makkah Al-Mokarramah, accounted for the highest total number of individuals with communication difficulty, representing 23.9% and 23.4%, respectively, of the national total. These findings suggest a concentration of cases in the most populous regions, with varying severity profiles across locations.
In
Table 2, the gender distribution of communication difficulty is shown across administrative regions. Males accounted for a slightly higher proportion of cases in most regions, with the highest number reported in Al-Riyadh (30,405) and Makkah Al-Mokarramah (23,851). Females had a higher number of cases in Makkah Al-Mokarramah (29,167), Aseer (12,540), and Jazan (7543). The highest total number of individuals with communication difficulty was reported in Al-Riyadh (54,217) and Makkah Al-Mokarramah (53,018), with females representing a larger proportion in Makkah Al-Mokarramah and males in Al-Riyadh.
In
Table 3, the severity distribution of communication difficulty is presented by gender. Mild difficulty was the most reported severity level for both males (56.6%) and females (54.1%). Severe difficulty was reported by 25.5% of males and 24.3% of females. Extreme difficulty was more frequently reported among females (21.6%) than males (17.9%), indicating a higher proportion of females experience the most severe form of communication difficulty.
In
Table 4, the educational status of individuals with communication difficulty is presented. Most individuals were educated to the secondary level or below, with secondary education being the most common (25.5%). Illiterate individuals accounted for 10.4% of the population with communication difficulty. Females had a higher proportion of university-level education (18.7%) compared to males (10.9%). Males were more frequently reported as illiterate (9.1%) and primary level educated (23.2%) than females.
In
Table 5, the marital status of individuals with communication difficulty is shown by gender. Most individuals were either never married (47.0%) or married (49.1%). Males were slightly more likely to be never married (48.0%), while females were more likely to be married (49.5%). Divorced individuals accounted for a small proportion (3.8%), with a slightly higher proportion of females (4.1%). Widowed individuals were the least frequently reported group (0.2%), with all cases among females.
In
Table 6, the relationship between consanguinity and communication difficulty is presented by gender. The highest proportion was observed among individuals whose parents were not related (51.2%), followed by those with first-degree relatives on both sides (19.9%). Males were more frequently reported in categories with consanguinity, particularly in first-degree relatives on both sides (29.6%). Females were more frequently reported in non-consanguineous relationships (55.6%).
In
Table 7, the causes of communication difficulty are shown by gender. Disease was the most common cause for both males (25.1%) and females (46.1%), followed by congenital causes (25.9%). During delivery was more frequently reported among males (13.1%), while during pregnancy was more common among females (3.6%). Other accident and traffic accident were more frequently reported among males, whereas disease was the most common cause among females.
In
Table 8, the duration of communication difficulty is presented by gender. Most individuals (58.5%) had a disability duration of 25+ years, with a higher proportion among females (62.8%). The shortest duration (0–4 years) was the least common (0.6%). Males were more frequently reported in the 5–9 years category (13.8%), while females were more frequently reported in the 15–19 years category (15.3%).
In
Table 9, the distribution of individuals with communication difficulty who also have multiple disabilities is shown by severity and region. Mild difficulty was the most frequently reported severity level across regions, particularly in Al-Riyadh (25.0%) and Makkah Al-Mokarramah (22.2%). Extreme difficulty was most frequently reported in Makkah Al-Mokarramah (33.3%). Al-Riyadh and Makkah Al-Mokarramah had the highest total number of individuals with multiple disabilities and communication difficulty, accounting for 23.1% and 23.4%, respectively.
Table 10 presents several epidemiological characteristics about communication difficulty. The use of sign language among individuals with communication difficulty is presented by gender. Males accounted for 51.0% of sign language users, while females accounted for 49.0%. Sign language use was relatively balanced between genders, with a slightly higher proportion of males using sign language. The relationship between parents is compared with the type of disability (single vs. multiple). A higher proportion of individuals with multiple disabilities were from consanguineous relationships, particularly those with first-degree relatives on both sides (21.6%). Individuals from non-consanguineous relationships had a higher proportion of single disabilities (51.2%). Overall, consanguinity was more frequently associated with multiple disabilities. The cause of disability is compared with the type of disability (single vs. multiple). Disease was the most common cause for both single (35.9%) and multiple disabilities (44.0%). During delivery was more frequently associated with multiple disabilities (13.3%) than single disabilities (8.2%). Congenital causes were more common in single disabilities (25.9%), while disease was the most frequent cause of multiple disabilities. The duration of communication difficulty is presented based on disability type (single vs. multiple). A higher proportion of individuals with multiple disabilities had a duration of 25+ years (67.3%). Shorter durations (0–4 years) were more common among individuals with multiple disabilities (3.7%). Long-term disability (25+ years) was more frequently associated with multiple disabilities than with single disabilities.
In
Table 11, the results of a multivariable logistic regression model are presented, examining factors associated with communication difficulty. Disease and delivery-related causes were the strongest predictors of communication difficulty. Long duration (25+ years) was strongly associated with increased odds of communication difficulty. Use of sign language was associated with reduced odds. Higher education (university level) was associated with increased odds, while being widowed was associated with lower odds compared to never-married individuals.
4. Discussion
The present analysis sought to address five specific questions about the epidemiology of communication difficulty in Saudi Arabia by applying the International Classification of Functioning, Disability and Health lens to nationally representative data from the 2017 National Disability Survey. In this way, this study responds to longstanding calls for population—level evidence to complement clinical case series and qualitative inquiries that have highlighted communication barriers in classrooms, clinics, and public spaces [
39,
42]. The survey’s two-stage, stratified–cluster design and large sample (N = 20.4 million weighted) afford a rare opportunity to quantify regional variation and to examine individual—level determinants—such as consanguinity and co-disability—that earlier Saudi research has noted only anecdotally [
46]. By situating our findings within the impairment-to-participation continuum articulated by the DSM-5-TR, ICD-11, and ICF frameworks, we provide an integrative epidemiological baseline capable of informing both clinical pathways and national policy priorities.
4.1. Prevalence and Geographic Variation
Nationally, 1.11% of Saudi citizens reported a communication difficulty; although this proportion is lower than the 8–10% prevalence commonly cited in U.S. and European surveillance systems that employ broader Washington Group phrasing [
17], it is broadly consistent with household estimates from neighbouring Gulf states that use comparable wording [
60]. Regional heterogeneity was pronounced: prevalence in Aseer (1.55%) and Hail (1.49%) was more than triple that in Najran (0.45%), echoing educational and health resource gradients documented by the Ministry of Health. Such clustering may also reflect dialectal diversity and rurality, which can heighten diagnostic under-ascertainment and service delays [
61].
4.2. Severity- and Gender-Specific Patterns
Across the Kingdom, 72% of cases were categorised as some difficulty, 24% as a lot of difficulty, and only 4% as cannot do at all, mirroring the dimensional gradations specified in the ICF activity codes and underscoring the value of early detection before problems reach the “extreme” threshold. A small but statistically significant male excess (OR = 1.09) was observed, paralleling sex ratios reported for childhood speech-sound disorders in global meta-analyses [
62]. Yet females were overrepresented in the most severe category, a pattern that may reflect gendered help-seeking norms, delayed service uptake, or differential survival. Given documented obstacles Saudi women face in securing rehabilitative appointments—particularly in gender-segregated facilities [
42]—future mixed-methods work should explore whether service accessibility mediates this severity gradient.
4.3. Demographic Correlates
Education and marital status exhibited notable gradients. Because of the cross-sectional design, these patterns cannot be interpreted as causal. For example, higher education may reflect greater awareness and reporting of communication difficulties, rather than a risk factor per se, leaving only initiative-taking survivors in tertiary education. Married respondents showed slightly higher odds than single adults, whereas widowhood appeared protective—perhaps because widows in extended-family households benefit from collective caregiving that buffers functional limitations. Consanguinity emerged as a salient risk factor: bilateral first—cousin marriage elevated odds by 22%, consistent with genetic studies linking recessive mutations to congenital language disorders [
46]. These demographic signals illuminate potential leverage points for public health counselling and community engagement.
4.4. Links with Other Disability Indicators
Communication difficulty rarely occurred in isolation: 84% of affected respondents reported at least one additional functional limitation, and 38% reported two or more. The most common co-disabilities were mobility problems (31%) and self-care difficulties (26%), echoing global evidence that neurological conditions often impair multiple domains [
22]. Causally, household heads most frequently attributed communication problems to chronic disease (44%) or perinatal factors (13% during delivery), findings that dovetail with paediatric neurology reviews citing hypoxic-ischaemic encephalopathy and neonatal infection as major speech-language risk pathways [
16]. Duration also mattered: adults living with disability for ≥25 years had a four-fold higher likelihood of reporting communication difficulty than those with a ≤5-year duration, underscoring the chronic, lifelong trajectory of many language disorders.
4.5. Independent Predictors
In multivariable logistic models, four variables retained independent associations: long duration (AOR = 4.18), disease or delivery-related cause (AOR = 2.64 and 2.02, respectively), bilateral first-degree consanguinity (AOR = 1.22), and lack of sign-language use (AOR = 1.41). The latter finding is counter-intuitive but may signal an ascertainment gap: deaf adults who primarily sign may not conceptualise signing as a disability, particularly if they participate in culturally vibrant signing communities [
47]. Survey instruments that frame sign language as a linguistic choice rather than an impairment may therefore improve reporting accuracy.
4.6. Convergence with, and Extensions to, Prior Research
Our quantitative results resonate with
Section 4’s qualitative evidence of widespread communication barriers in Saudi classrooms, hospitals, and digital platforms [
39,
48]. The regional hot spots we observed coincide with provinces where language obstacles impede nurse–patient rapport [
61] and where foreign faculty predominate in tertiary education [
40,
41]. Moreover, the strong disease-related signal amplifies international findings that chronic illnesses—such as Parkinson’s disease and dementia—accelerate speech–language decline [
21,
22]. By delivering population-level estimates and risk profiles, the present study gives empirical heft to policy recommendations—namely, plain-language public messaging, communication-access licencing for service points, and the strategic training of frontline personnel.
4.7. Implications for Policy and Practice
Several actionable insights emerge. First, prevalence hot spots call for targeted deployment of bilingual speech-language pathologists and culturally responsive screening tools—especially in Aseer, Hail, and Jazan, where rural distance and dialect diversity complicate service access. Second, the consanguinity gradient underscores the need for premarital counselling that explicitly addresses communication outcomes alongside other genetic risks. Third, the predominance of disease-related cases suggests that speech-language assessment should be embedded in chronic disease care pathways, mirroring the UAE’s pandemic risk-communication model that integrates behaviour-change advice at each clinical touchpoint [
32]. Fourth, the high multilayer co-disability burden argues for interdisciplinary rehabilitation and for extending Victoria’s communication-access standards to Saudi pharmacies, municipal offices, and e-government portals [
34]. Finally, leveraging Vision 2030’s digital-health agenda to scale assistive technologies—such as neural-network sign-language wearables—could further narrow participation gaps [
47].
Moreover, findings from this nationally representative analysis highlight the need for systemic policy responses. First, the Ministry of Health could integrate speech–language pathology into multidisciplinary primary-care teams to enable earlier detection, referral, and intervention. Embedding communication screening into routine paediatric visits and chronic disease management could prevent downstream complications. Second, education authorities should ensure that teachers are trained to recognise communication difficulties, provide classroom accommodation, and liaise effectively with health professionals. Third, premarital screening programmes—already mandated for genetic and infectious conditions—could incorporate family history of communication and hearing difficulties, particularly given the elevated odds associated with consanguinity. Fourth, Vision 2030’s digital-health initiatives provide an opportunity to scale up telehealth models of speech–language therapy, particularly for underserved regions. Leveraging digital platforms could reduce geographic disparities, enhance continuity of care, and align with national goals of equity and accessibility. Collectively, these steps would align epidemiological insights with policy action, supporting inclusion and health equity for individuals with communication difficulties.
4.8. Strengths, Limitations, and Future Directions
A major strength is the use of a large, nationally representative dataset with region identifiers, allowing fine-grained mapping seldom feasible in Gulf epidemiology. Nonetheless, several limitations must temper interpretation. Communication status was reported by household heads rather than measured via clinical tools, inviting recall and social-desirability bias; expatriate residents, who comprise roughly one-third of the population and may face distinctive language barriers, were excluded from the survey frame; and the cross-sectional design precludes temporal ordering of cause and effect. Another key limitation is that the Disability Survey 2017 excluded or did not report non-Saudi residents, who comprise nearly one-third of the Kingdom’s population. As such, findings cannot be generalised to expatriate groups, who may face distinct linguistic and communication barriers. Future research should include these populations to provide a more comprehensive national picture. A further limitation is that contextual determinants such as household income, access to assistive technologies, and availability of local support services were not captured in the 2017 Disability Survey.
Future research should integrate these factors to provide a more comprehensive understanding of the social determinants of communication difficulties. Future research could oversample women and rural dwellers to probe the gender-by-region interaction, incorporate objective language assessments (e.g., picture-naming tasks) into disability surveys, and launch longitudinal cohorts to assess whether new communication-access initiatives under Vision 2030 reduce incidence and severity over time. Mixed-methods studies would also clarify how gender segregation and intercultural pedagogies shape everyday communication experiences in schools and clinics. Additionally, future surveys should complement self-reports with brief, objective language assessments (e.g., picture-naming tasks or comprehension probes) to enhance accuracy and reduce reporting bias.
5. Conclusions
Our findings paint a nuanced, data-driven picture: while communication difficulties affect a small proportion of Saudi citizens, the burden is regionally clustered, entwined with chronic disease and consanguinity, and rarely occurs in isolation. Addressing this burden will require an integrated policy mix—accessible content, supportive environments, skilled personnel, and robust monitoring—tailored to the linguistic, cultural, and technological realities. The present study provides an epidemiological baseline against which future interventions can be evaluated, thereby advancing both national disability policy and the global evidence base on communication disorders.