Aim: The survey conducted in the Provence-Alpes-Cote d'Azur region in France in 1999 showed that 38% of patients infected with the hepatitis C virus (HCV) receiving interferon injections in their home were aware of the recommendations concerning the disposal of injection material and that 41% of the needles were discarded with household waste after use. The purpose of our study conducted in the Centre region of France was to ascertain how injection material used by HCV-positive patients for interferon treatment are disposed of in comparison with material used by patients injecting insulin for insulin-dependent diabetes mellitus (IDDM) or low-molecular-weight heparin (LMWH) for thromboembolism.
Material and methods: A questionnaire to be completed by patients was proposed to HCV-positive patients attending hepatogastroenterology clinics in the Centre region hepatitis C network for therapeutic follow-up (N=113 patients) between October 2001-January 2002. The same questionnaire was proposed to patients attending follow-up consultations for insulin-dependent diabetes mellitus (N=85 patients) or thromboembolism (N=23 patients) between March-June 2002.
Results: Significantly more patients stated they were aware of recommendations for disposal of injection material in the HCV group (89%) than in the IDDM (67%) or LMWH (26%) groups (P<0.01). Injection material was discarded with household waste less often by patients in the HCV group (6%) than in the IDDM (32%) or LMWH (29%) groups (P<0.001) and more often collected in a safety box prior to incineration (73% in the HCV group versus 63% and 14% in the IDDM and LMWH groups respectively). The safety box was discarded with household garbage more often by patients in the IDDM (54%) or LMWH (50%) groups than in the HCV group (0%) (P<0.001). Equivalent proportions of the patients said they recapped the needle after use (HCV 83%; IDDM 93%; LMWH 84%).
Discussion: Information concerning use of safety boxes for disposal of injection material should be provided to patients in order to comply with regulatory recommendations on proper disposal of used injection material. Moreover, the habit of recapping needles (89% of all patients in this study) is still widespread.