The feasibility of using SMS as a health survey tool: an exploratory study in patients with rheumatoid arthritis.

Aim: To explore the feasibility of using SMS to conduct health surveys in patients with rheumatoid arthritis (RA).

Methods: Using a two-way SMS system, we conducted a baseline survey using a short and a long quality of life instrument, with two follow-up administrations of the short survey among patients with RA on follow-up at the Singapore General Hospital (SGH). Our outcome variables were survey response rate, question response time, proportion of replies following the format instructions, and survey administration cost.