Mauriello 2013.

Methods	This single‐blind 2‐armed randomised controlled trial of the (Healthy Pregnancy: Step by Step) is a broad maternal and child health program which aims to address smoking cessation, stress management, and fruit and vegetable consumption in pregnant women. The study was conducted in Connecticut, Rhode Island and New York in the USA from December 2011 to September 2012.
Participants	Inclusion criteria: > 18 years, English or Spanish speaking, and less than 19 weeks' gestation. Exclusion criteria: Not stated. Recruitment: Prenatal health staff at each participating location invited all pregnant women who met the eligibility requirements to participate. 392 women were approached, with 117 smokers randomised (C = 60 I = 57). Baseline characteristics: Characteristics of smokers at baseline not reported. Progress + coding: None.
Interventions	Control: The UC arm received a 'March of Dimes' brochure on the target behaviours at the conclusion of their first assessment. Intervention: To test an iPad‐delivered multiple behaviour tailored intervention for pregnant women that addresses smoking cessation, stress management and fruit and vegetable consumption. Main Intervention strategy: Maternal Health intervention with smoking cessation component: Health education (single) vs UC. Intensity: Frequency (C = 0 I = 3) Duration (C = 0 I = 3).
Outcomes	Smoking outcomes not reported as authors state numbers were too small. Fruit and vegetable consumption and stress management reported. See Table 4 for summary of reported results.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	A randomised 2 x 2 factorial repeated measures design was employed with randomisation on the individual level stratified on behaviour risk.
Allocation concealment (selection bias)	Unclear risk	States that computer allocation was used so assume concealed from researchers.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Smoking outcomes not reported as numbers were too small.
Selective reporting (reporting bias)	Unclear risk	Smoking outcomes not reported as numbers were too small.
Other bias	Unclear risk	No other bias detected.
Biochemical validation of smoking abstinence (detection bias)	High risk	No evidence of validation is reported and no smoking outcomes reported.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not reported.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Unclear as smoking was not assessed.
Incomplete implementation	Low risk	Process evaluation not undertaken.
Equal baseline characteristics in study arms	Unclear risk	Baseline characteristics appear to be equal.
Contamination of control group	Low risk	Intervention was self‐administered via an iPad application, so no likelihood of contamination.