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Table 1 List of multiple choice and true/false questions. Correct multiple choice answers are highlighted with an arrow and true/false questions are marked with T (true) or F (false)

From: Informed consent procedure in a double blind randomized anthelminthic trial on Pemba Island, Tanzania: do pamphlet and information session increase caregivers knowledge?

Multiple choice questions
1. What is hookworm?
 AA worm that can infect us if we drink dirty water.
BA worm that can go into our feet if we walk barefoot.
 CA worm that can infect us if we eat rotten food.
 DA worm that can get to our food through flies.
 EDon’t know.
2. Why is hookworm bad for your child?
 AMy child will get pimples all over the body.
 BMy child’s urine will become red (blood).
CMy child may not grow well and may have difficulties at school.
 DMy child will be very hungry all the time.
 eDon’t know.
3. Is it possible to treat hookworm?
 aNo, it is not possible to treat hookworm.
 bYes, it is possible to treat if my child eats a lot of healthy food like veg/fruit.
 cYes, I should take my child to the traditional healer.
dYes, my child can receive medication that will kill the hookworm.
 eDon’t know.
4. What do we want to do in this study?
 aTo see if mebendazole kills the worms in my child’s belly because this drug has never been used before.
 bTo see if mebendazole kills the worms that are in my child’s feet.
 cWe want to see if mebendazole is better than another drug called albendazole at killing the worms.
dWe want to find out what is the best amount of a mebendazole to kill the hookworm in my child’s belly.
 eDon’t know.
5. Who should decide if your child should participate in this study?
 cDoctors or nurses
 dNeighbor or relative
 eDon’t know.
6. What happens if your child still has worms after the treatment?
 aThere is nothing that we can do
 bWe will give him/her an injection to kill the worms
 cYour child should drink a lot of water
dWe will give him/her another pill to kill the worms
 eDon’t know.
7. Can your child give up participating during the study?
aYes, my child can give up and there is no consequence. He/she will still receive treatment.
 bYes, but my child will not receive treatment.
 cNo, my child cannot give up if I decide he participates he/she has to stay until the end of the study.
 dOnly if the doctor and teacher agree that he/she can give up.
 eDon’t know.
8. What about payment?
 aThere are some costs for you: you will have to pay for your child’s treatment.
bThere are no costs for you: the treatment is free and you will get 2$ if you came to the information session.
 cYou will receive money if your child accepts the treatment
 dYou will only get money if the treatment kills the worms
 eDon’t know.
9. Is the treatment we will give to your child (mebendazole) safe?
 aNothing bad can happen if my child takes the treatment.
 bIf my child takes the treatment he/she will not be able to walk for a few days.
cIf my child takes the treatment, he/she may feel some things like a belly ache or a headache but nothing very dangerous.
 dIf my child takes the treatment he will sleep all day.
 eDon’t know.
10. Who will be able to see your child’s personal information?
bOnly study investigators
 dOnly you
 eDon’t know.
True or false questions
11. What does your child need to do if he/she participates in this study? Will he have to …
TaGive us several stool samples?
FbPay for the medication to kill the worms (mebendazole)?
TcTell us if he/she is feeling well after the medication?
FdGive us a urine sample?
FeOnly give us one stool sample?
TfGive us a small blood sample?
TgAccept that a doctor checks his/her health?