Table 1

Original MFPDI questions compared to the back translated MFPDI questions.

Original MFPDI questions
Back-translated MFPDI questions

I avoid walking outside at all
I totally avoid walking outside
I avoid walking long distances
I avoid walking long distances*
I don't walk in a normal way
I don't walk in a normal way*
I walk slowly
I walk slowly*
I have to stop and rest my feet
I need to stop and rest my feet
I avoid hard or rough surfaces when possible
I avoid walking on hard or uneven surfaces
I avoid standing for a long time
I avoid standing for long periods
I catch the bus or use the car more often
I take the bus or use the car more often
I need help with housework/shopping
I require help with jobs around the home/with shopping
I still do everything but with more pain or discomfort
I still do everything but with more pain or discomfort *
I get irritable when my feet hurt
I become irritable when my feet ache
I feel self-conscious about my feet
I am embarrassed of my feet
I get self-conscious about the shoes I have to wear
I am embarrassed of the shoes I have to wear
I have constant pain in my feet
I have constant pain in my feet*
My feet are worse in the morning
My feet are worse in the morning*
My feet are more painful in the evening
My feet are more painful at night
I get shooting pains in my feet
I have stabbing pains in my feet
I am unable to carry out my previous work
I am unable to cope with my previous job†
I no longer do all my previous activities (sport, dancing, hill-walking, etc)
I no longer do my former activities (sport, dancing, hiking etc)†

NB: * word-perfect back-translation, † Questions excluded from this study, as participants were of retirement age

Kaoulla et al. Health and Quality of Life Outcomes 2008 6:39   doi:10.1186/1477-7525-6-39