Asia-Pacific Dysphagia Guidelines: A Comparative Review

Dysphagia management practice varies significantly across the Asia-Pacific region. While the International Dysphagia Diet Standardisation Initiative (IDDSI) has provided a global framework, national clinical practice guidelines, professional body recommendations, and institutional protocols differ in adoption rate, adaptation approach, and enforcement mechanisms. This page provides a comparative overview of dysphagia clinical guidelines across key Asia-Pacific jurisdictions, with particular attention to Hong Kong.

The IDDSI Framework as a Reference Point

Before comparing regional guidelines, it is useful to understand what IDDSI does and does not prescribe:

• What IDDSI defines: A standardised eight-level continuum (Levels 0–7) for drinks and foods, with validated testing methods, standardised terminology, and implementation resources
• What IDDSI does not define: Assessment protocols, thickening thresholds for specific diagnoses, who should conduct assessments, or how services should be organised
• Adoption mechanism: IDDSI is a voluntary international standard. Countries, healthcare systems, and institutions choose whether and how to adopt it

This creates legitimate variation: jurisdictions may adopt IDDSI levels while maintaining distinct assessment protocols, staffing models, and prescribing practices. The comparative challenge is distinguishing meaningful clinical divergence from administrative or definitional differences.

Australia and New Zealand

Australia and New Zealand were among the earliest and most comprehensive IDDSI adopters outside of the framework’s founding team.

Speech Pathology Australia (SPA) published updated clinical guidelines in 2018 endorsing full IDDSI adoption, with transition support resources for hospitals and aged care facilities. The Aged Care Quality Standards (updated 2019) require food and fluid consistency documentation — IDDSI provides the default standard.

Speech-language Therapy New Zealand (SLTNZ) similarly endorsed IDDSI as the national standard from 2019. New Zealand’s smaller healthcare system has allowed more rapid implementation consistency.

Key features of the Australian/New Zealand approach:

• Instrumental assessment (VFSS or FEES) recommended before texture modification prescription where clinically feasible
• Strong emphasis on caregiver and care home worker training
• National audit infrastructure — SPA coordinates multisite clinical audits against IDDSI compliance
• Patient-centred approaches emphasised, including management of quality-of-life trade-offs

Divergence from IDDSI base: Minimal. Australia/New Zealand represent the closest regional alignment with the IDDSI Framework as published.

Japan

Japan has one of the world’s oldest populations and a long history of institutional dysphagia management, including a well-developed culture of texture-modified foods (particularly in hospital and care settings). However, Japan developed its own framework — the Japanese Dysphagia Diet (JDD) — prior to IDDSI, creating a parallel standard.

Japanese Society of Dysphagia Rehabilitation (JSDR) guidelines (most recently updated in 2021) describe a seven-level food classification system and a separate thickened liquid classification. The JDD and IDDSI are broadly comparable but not equivalent — Level mappings require explicit cross-referencing.

Key features of the Japanese approach:

• Stronger institutional food science involvement — food texture standards developed jointly with food industry and nutritional science bodies
• High emphasis on aspiration pneumonia prevention as a primary outcome measure
• Significant investment in texture-modified food product development — Japan has a sophisticated domestic commercial market
• Rehabilitation-oriented: dysphagia rehabilitation (oral exercise, neuromuscular electrical stimulation) more systematically integrated into guidelines than in some Western frameworks

Divergence from IDDSI: Moderate to significant. JSDR and IDDSI levels do not map 1:1. International care transitions involving Japanese patients require explicit level translation.

China (Mainland)

Dysphagia management in mainland China is a rapidly evolving field. The Chinese Rehabilitation Medicine Society and the Chinese Society of Neurology have published stroke-specific dysphagia guidelines, most recently updated in 2022.

Key features of the mainland Chinese approach:

• Primarily stroke-focused in published guidelines; geriatric and oncological dysphagia guidance is less developed
• IDDSI is referenced but not uniformly adopted; many hospitals continue to use institutional classification systems
• Instrumental assessment access varies dramatically — major urban tertiary hospitals have VFSS and FEES; community hospitals and rural settings often rely on clinical bedside assessment
• Growing professional body infrastructure — the Chinese Association of Rehabilitation Medicine Dysphagia Committee has been active in guideline development and education

Divergence from IDDSI: Variable. Tier-one hospitals in Beijing, Shanghai, and Guangzhou are increasingly IDDSI-aligned; provincial and community settings remain heterogeneous.

Singapore

Singapore’s healthcare system is highly developed and internationally oriented, and IDDSI adoption has been relatively systematic.

Agency for Integrated Care (AIC) guidelines for long-term care facilities include IDDSI-aligned texture standards. The Singapore Association of Speech-Language Pathology (SASLP) endorsed IDDSI as the reference framework from 2019.

Key features of the Singaporean approach:

• Strong public-private integration: guidelines span both restructured hospitals (public) and private sector institutions
• Multilingual context (English, Mandarin, Malay, Tamil) — IDDSI terminology translation has been more systematically addressed than in some regional peers
• Acute sector compliance is high; community and home care sector implementation is more variable

Divergence from IDDSI: Low. Singapore represents high alignment with global IDDSI standards.

Taiwan

Taiwan has a substantial academic dysphagia research output, particularly from the National Taiwan University and Taipei Veterans General Hospital groups. The Taiwan Society of Dysphagia (TSD) has published clinical practice recommendations that reference both IDDSI and Asian regional adaptations.

Key divergences from IDDSI base:

• Food testing protocols adapted for traditional Taiwanese food textures
• Thickened liquid prescribing practices informed by local clinical tradition as well as IDDSI
• Strong integration with traditional Chinese medicine approaches to oral motor rehabilitation in some settings

Hong Kong

Hong Kong’s dysphagia management guidelines are primarily driven by the Hospital Authority (HA), which serves approximately 90% of inpatient care.

Hospital Authority approach:

• HA formally adopted IDDSI as the reference framework for acute hospitals beginning approximately 2019–2020
• Speech therapy departments across HA clusters have implemented IDDSI-aligned assessment and prescribing documentation
• Dietetic departments have updated menu frameworks to align with IDDSI levels in acute hospitals

Professional bodies:

• The Hong Kong Association of Speech-Language Pathologists (HKASLP) does not publish standalone clinical practice guidelines but endorses IDDSI as the international standard
• The Dietitians Association of Hong Kong (DAHK) similarly references IDDSI in professional guidance

Gaps and challenges specific to Hong Kong:

• Care home sector: IDDSI implementation in private and subsidised care homes is inconsistent; HA guidance does not bind the private care sector
• Community and outpatient settings: Prescribing practices outside HA are not systematically tracked
• Cantonese food culture: Congee (jook) presents a particular challenge — its texture varies enormously based on preparation, and consistent IDDSI level assignment requires standardised cooking protocols not yet uniformly adopted
• Training coverage: Frontline care workers (personal care workers in care homes) receive minimal formal dysphagia training in the current system

Comparative Summary

Implications for Cross-Border Care

For patients moving between Asia-Pacific jurisdictions — increasingly common given regional migration and medical tourism — the lack of universal IDDSI adoption creates real clinical risk. A patient discharged from a Japanese hospital with a JDD Level 3 prescription may be assigned an incompatible diet if a receiving Hong Kong institution does not translate the level correctly.

Recommendations for cross-border care:

1. Always request instrumental assessment reports, not just diet level labels, at care transitions
2. Use IDDSI as the common translation framework when level mapping is required
3. Confirm food item specifics with receiving dietitian or SLP — particularly for culturally specific foods

This comparative review is intended for clinical professionals and healthcare administrators. For practical IDDSI implementation guidance, see the IDDSI Guide and IDDSI for Care Homes pages.