Trial Outcomes & Findings for Interventions of Smoking Cessation During Pregnancy (NCT NCT01210118)

NCT ID: NCT01210118

Last Updated: 2013-04-09

Results Overview

participants' smoking status was validated by urine cotinine and urine nicotine

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

92 participants

Primary outcome timeframe

around the 32nd week of gestation.

Results posted on

2013-04-09

Participant Flow

This research took place in two hospitals situated in the area of Attici, Greece namely through the Peripheral General Maternity Hospital 'Helena Venizelos' and the Maternity Unit of the 'Attikon' University Hospital. Recruitment lasted from November 2009- February 2011.

Sixty-six enrolled participants were excluded from the trial before assignment to groups because 36 of them did not meet the inclusion criteria and 30 of them refused to participate.

Participant milestones

Participant milestones
Measure
High Intensity Intervention
Experimental group participants received a higher intensity intervention, which included: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
Overall Study
STARTED
45
47
Overall Study
COMPLETED
42
42
Overall Study
NOT COMPLETED
3
5

Reasons for withdrawal

Reasons for withdrawal
Measure
High Intensity Intervention
Experimental group participants received a higher intensity intervention, which included: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
Overall Study
Lost to Follow-up
1
1
Overall Study
Protocol Violation
1
1
Overall Study
Spontaneous abortion
1
3

Baseline Characteristics

Interventions of Smoking Cessation During Pregnancy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
High Intensity Intervention
n=42 Participants
Experimental group participants received a higher intensity intervention, which include: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
n=42 Participants
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
Total
n=84 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Age, Categorical
Between 18 and 65 years
42 Participants
n=93 Participants
42 Participants
n=4 Participants
84 Participants
n=27 Participants
Age, Categorical
>=65 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Age Continuous
31.4 years
STANDARD_DEVIATION 5.9 • n=93 Participants
32.4 years
STANDARD_DEVIATION 4.5 • n=4 Participants
31.9 years
STANDARD_DEVIATION 5.2 • n=27 Participants
Sex: Female, Male
Female
42 Participants
n=93 Participants
42 Participants
n=4 Participants
84 Participants
n=27 Participants
Sex: Female, Male
Male
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
Region of Enrollment
Greece
42 participants
n=93 Participants
42 participants
n=4 Participants
84 participants
n=27 Participants

PRIMARY outcome

Timeframe: around the 32nd week of gestation.

Population: Only the participants who met the inclusion criteria and completed the research protocol were included in the research analysis

participants' smoking status was validated by urine cotinine and urine nicotine

Outcome measures

Outcome measures
Measure
High Intensity Intervention
n=42 Participants
Experimental group participants received a higher intensity intervention, which include: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
n=42 Participants
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
Participants' Smoking Status
Urine nicotine
253.6 ng/ml
Standard Deviation 532.3
678.9 ng/ml
Standard Deviation 1467.2
Participants' Smoking Status
Urine cotinine
311.9 ng/ml
Standard Deviation 490.1
479.6 ng/ml
Standard Deviation 563.4

PRIMARY outcome

Timeframe: At the baseline and at the 32nd week of gestation

The basic primary outcomes of the study present the levels of urine cotinine before and after intervention separately for each group according to the cut of point that is used for the separation of active from passive smoking ,when urine cotinine ≤80ng/ml: there is biochemically validated smoking cessation.

Outcome measures

Outcome measures
Measure
High Intensity Intervention
n=42 Participants
Experimental group participants received a higher intensity intervention, which include: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
n=42 Participants
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
The Effectiveness of the Interventions According the Levels of Urine Cotinine Before and After Intervention.
Before Intervention (baseline)
11.9 percentage of participants who quit
Interval 0.001 to 0.001
21.4 percentage of participants who quit
Interval 0.001 to 1.0
The Effectiveness of the Interventions According the Levels of Urine Cotinine Before and After Intervention.
After intervention (32nd week of gestation)
45.2 percentage of participants who quit
21.4 percentage of participants who quit

SECONDARY outcome

Timeframe: After child birth

Population: Only the participants who met the inclusion criteria and completed the research protocol were included in the research analysis.

Infants' birth weight was recorded.

Outcome measures

Outcome measures
Measure
High Intensity Intervention
n=42 Participants
Experimental group participants received a higher intensity intervention, which include: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
n=42 Participants
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
Birth Weight
3,003.4 birth weight in grams
Standard Deviation 499.8
3,231.3 birth weight in grams
Standard Deviation 450.8

SECONDARY outcome

Timeframe: After child birth

Population: Only the participants who met the inclusion criteria and completed the research protocol were included in the research analysis.

Days of prematurity of birth were recorded

Outcome measures

Outcome measures
Measure
High Intensity Intervention
n=42 Participants
Experimental group participants received a higher intensity intervention, which include: 30 minutes of individualized cognitive-behavioural counselling delivered by a trained health care professional and a self-help manual especially tailored for smoking cessation during pregnancy. Counseling was based at the "5 Αs" (Ask,Advise, Asses, Assist, Arrange). In addition to counselling, a self help manual especially tailored for smoking cessation during pregnancy for Greek women was provided.
Low Intensity Intervention
n=42 Participants
Control group participants received a face to face low intensity intervention which lasted 5 minutes and included brief advice and the provision of a leaflet on smoking and pregnancy. This leaflet summarized the main effects of smoking during pregnancy and gave clear short messages for encouraging smoking cessation by setting up a quit date.
Days of Prematurity of Birth
14.3 number of days
Standard Deviation 11.6
10.5 number of days
Standard Deviation 6.9

Adverse Events

High Intensity Intervention

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Low Intensity Intervention

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Professor Panagiotis Behrakis

Hellenic Anticancer Society

Phone: 00302106470056

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place