Pregnant Aboriginal women self-assess health risks from smoking and efficacy to quit over time using an adapted Risk Behaviour Diagnosis (RBD) Scale

During pregnancy, the imperative to stop smoking becomes urgent due to health risks for mother and baby.Explore responses to a smoking-related, pregnancy-focused Risk Behaviour Diagnosis (RBD) Scale over time with Aboriginal1 pregnant women.Six Aboriginal Medical Services in three states recruited 22 eligible women: ⩽28 weeks' gestation, ⩾16 years old, smoked tobacco, pregnant with an Aboriginal baby. Surveys were completed at baseline (n = 22), 4-weeks (n = 16) and 12-weeks (n = 17). RBD Scale outcome measures included: perceived threat (susceptibility and severity), perceived efficacy (response and self-efficacy), fear control (avoidance), danger control (intentions to quit) and protection responses (protecting babies).At baseline, the total mean threat scores at 4.2 (95% CI: 3.9–4.4) were higher than total mean efficacy scores at 3.9 (95% CI: 3.6–4.1). Over time there was a non-significant reduction in total mean threat and efficacy; fear control increased; danger control and protection responses remained stable. Reduction of threat and efficacy perceptions, with raised fear control responses, may indicate a blunting effect (a coping style which involves avoidance of risks).In 22 Aboriginal pregnant women, risk perception changed over time. A larger study is warranted to understand how Aboriginal women perceive smoking risks as the pregnancy progresses so that health messages are delivered accordingly.