Patch testing in New Zealand: Barriers to evidence-based care

Area of Science:

• Dermatology
• Allergology
• Public Health

Background:

• Allergic contact dermatitis significantly impacts quality of life.
• Identification and avoidance of allergens are crucial for management.
• Patch testing is the established diagnostic standard for allergic contact dermatitis.

Purpose of the Study:

• To assess the current practices and adequacy of patch testing in New Zealand.
• To identify barriers to patch testing utilization among New Zealand dermatologists.

Main Methods:

• A literature review of current patch testing guidelines was conducted.
• A web-based survey was distributed to 75 vocationally registered New Zealand dermatologists.
• Analysis of survey responses to evaluate patch testing practices and perceived barriers.

Main Results:

• 46% of surveyed dermatologists do not perform patch testing.
• Key barriers include lack of nursing support, inadequate remuneration, time constraints, and insufficient facilities.
• 23% reported a lack of public patch testing services in their region.
• Most dermatologists do not maintain a database of patch test results.

Conclusions:

• Patch testing access and utilization in New Zealand are suboptimal.
• Enhancing public sector services necessitates health board investment and addressing workforce shortages.
• Private practice requires improved insurance remuneration for negative tests.
• A national surveillance system and centralized database are recommended to track common allergens.