The aim is to determine the effectiveness of motivational interviewing on the adherence to iron supplementation and prenatal diagnostic test in couples suspected to have β- thalassemia, referring to premarital counseling center, Zahedan in 1394.
This study is a single-blind randomized clinical trial. The population of the study are all couples who are referred to Premarital counseling center in Zahedan in 1394 . The sample size is 70 Couples.
They will be allocated in intervention or control groups, randomly. Half of the couples will be held in the intervention group and half in the control group. "Block Randomization" will be used to allocate couples in the groups. Sampling will be done during four months. The main criteria for inclusion are: lack of psychological illness; participate in counseling sessions other than advice provided by the Thalassemia Advisory Centre.
And exclusion criteria are: pregnant women, women with age over 45 years, illiteracy, not participation in all counseling sessions.
Three counselling sessation (motivational interview) that each one will last about 90-minute will be held for each couples. One months later, the number, type and dose of iron tablets that are intake by couples, As well, the MCV, MCH, and HbA2 Will be considered. And each couple for doing prenatal diagnostic tests will be followed.