Table 2

Detailed description of assessment items and procedures for data collection

AssessmentsDescriptionScreenBaselineDailyWeeklyMonthlyFollow-upSupport
ScreeningDate of birth, expected due date of delivery, gestational age at screening, smoking statusx
Informed consentPatient information and consent form, photograph for identification purposesx
DemographicsAboriginal and Torres Strait Islander status, education, income status, marital status, current living arrangementsx
Smoking and household smokingNumber of household smokers, house and car smoking bans, changes to smoking during pregnancy, types of tobacco used, number of cigarettes smoked, Fagerström Test for Cigarette Dependence,107 strength and frequency of urges to smoke, feelings about smoking, history of quit attempts, methods previously used to quitx
Childhood Trauma Questionnaire (CTQ)108 28-item assessment of five types of childhood trauma: physical, sexual and emotional abuse; physical and emotional neglectx
Alcohol Use Disorders Identification Test (AUDIT-C)109 3-item screen identifying hazardous drinking or alcohol use disorderxxx
Australian Treatment Outcomes Profile (ATOP)110 Screens 28-day use of a range of substances, health and well-being, housing, employment and study, violence, legal issues, child protectionxxx
Generalized Anxiety Disorder (GAD-7)111 7-item screening and severity measure of generalised anxiety disorderxxx
Patient Health Questionnaire (PHQ-9)112 9-item screening, monitoring and severity measure of depressionxxx
Treatment Acceptability Questionnaire13 items adapted from prior internet-based contingency management studies.72 Assesses acceptability and helpfulness of study componentsxx
CounsellingMode of delivery, phase and major topics of discussion, importance of quitting, confidence to quitx
Nicotine replacement therapy (NRT)Quantity of NRT used in past 7 days, concerns or problems using NRT, household member use of NRTxx
7-day smoking statusSelf-reported 7-day point prevalence abstinence and number of cigarettes smokedxx
Expired air COCO ppmxxxx