Attachment 4 Follou-up call

Follow-up Call/Text Message(s) for Targeted Participants for the HIV Risk Factor Study

PHONE CALL

Dear ________,

This is ______ calling from ____ Blood Center. We mailed a study packet to you ___ days ago. It is a survey to learn about the risk factors for HIV infection among blood donors. Have you received the packet?

1. (If Yes) Have you completed the questionnaire?

1.1 (If Yes) Thank you very much. Have you mailed back the questionnaire?

1.1.1 (If Yes) Thank you very much.

1.1.2 (If No) Please return the questionnaire to the blood center using the pre-stamped envelope. You can also fill out the questionnaire online.

1.2 (If Not) Your participation is voluntary. If you are willing to participate in this survey, please fill out the questionnaire and return it to the blood center using the pre-stamped envelope. You can also fill out the questionnaire online.

2. (If Not) We are sorry about this. We will mail the study packet to you again. I want to confirm your correspondence address:_________________________________. In the study packet, you will find a consent form, a questionnaire, and a pre-stamped envelope for returning the completed questionnaire. Once we receive your completed survey you will receive a 100 yuan monetary reward for participating in the survey. If you are willing to participate in this survey, please fill out the questionnaire and return it to the blood center using the pre-stamped envelope. You can also fill out the questionnaire online.

Thank you very much.

TEXT VERSION

Dear ________,

This is ______ contacting you from ____ Blood Center. We mailed a study packet to you ___ days ago. It is a survey to learn about the risk factors for HIV infection among blood donors. Have you received the packet?

1. (If Yes) Have you completed the questionnaire?

1.1 (If Yes) Thank you very much. Have you mailed back the questionnaire?

1.1.1 (If Yes) Thank you very much.

1.1.2 (If No) Please return the questionnaire to the blood center using the pre-stamped envelope. You can also fill out the questionnaire online.

1.2 (If Not) Your participation is voluntary. If you are willing to participate in this survey, please fill out the questionnaire and return it to the blood center using the pre-stamped envelope. You can also fill out the questionnaire online.

2. (If Not) We are sorry about this. We will mail the study packet to you again. I want to confirm your correspondence address:_________________________________. In the study packet, you will find a consent form, a questionnaire, and a pre-stamped envelope for returning the completed questionnaire. Once we receive your completed survey you will receive a 100 yuan monetary reward for participating in the survey. If you are willing to participate in this survey, please fill out the questionnaire and return it to the blood center using the pre-stamped envelope. You can also fill out the questionnaire online.

Thank you very much.