A randomised-controlled pilot study using nicotine patches with pregnant women.

Stopping smoking in pregnancy is a public health priority and a clinical imperative. However, many women who have not been able to 'quit' in early pregnancy find it very difficult to do so. This randomised-controlled pilot study examined feasibility issues in offering free nicotine patches with counselling to a group of 20 mid-trimester pregnant women at the Women's and Children's Hospital, Adelaide. A further 20 were offered counselling only. Smoking status at each visit was measured by self-report, carbon monoxide monitoring, and salivary cotinine. The most common pattern (eleven of the twenty women) was intermittent patch use. Only five women used patches continuously up to the 12 week maximum available. Three women in the patch group were abstinent at delivery compared with none in the control group. Notable features of the study were the low interest in participation and the high withdrawal rate. Nicotine patches may not be highly useful for pregnant women. Continuing tobacco control measures and customized support for women and their partners, often smokers, may prove more fruitful.

Case studies of three pregnant smokers and their use of nicotine replacement therapy.

OBJECTIVE: To examine the barriers encountered by pregnant women who attempt to stop smoking by highlighting three women who used nicotine patches. DESIGN: A randomised-controlled trial of nicotine-replacement therapy (NRT) in the form of patches to test its acceptability for pregnant women. Ethics approval was granted despite NRT being contraindicated in Australia for pregnant women and having a low safety rating (category D) (Australian Drug Evaluation Committee, 1999). Salivary cotinine levels were used to assess nicotine exposure and provide some indicator of NRT safety. All participants were given pregnancy-specific cessation counselling, and the 20 women in the treatment arm were offered nicotine patches (15 mg/16 hr), with the option of weaning to lower strength patches if desired. SETTING: The Women's and Children's Hospital, Adelaide, a public tertiary teaching hospital in South Australia, with almost 4000 births annually. SAMPLE: 40 'high-risk' pregnant smokers who expressed interest in stopping smoking. FINDINGS: As has been found in the general population, 'quit' rates with NRT use were low. Only three of the participants in this study, who became abstinent with patch use during pregnancy, were still abstinent at birth. The circumstances of two of these women, and a third woman who used patches to 'control' her smoking despite researcher advice, are detailed here. Only one of the two women 'abstinent at delivery' was still abstinent 3 months after birth, the last contact point of the study. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: Although health providers intuitively regard pregnancy as an appropriate time for women to stop smoking, the stressors during pregnancy seem to militate against cessation. This study does not indicate that use of NRT will provide an easier solution. It may be more fruitful to institute a concerted lifestyle approach with both the woman and her partner (or significant household members), and continue this support and education postnatally if cessation has not been achieved. Health professionals should also support better-targeted public health campaigns and tobacco-control initiatives generally, because, undoubtedly, the social environment is a major determinant of initiation and continuation of smoking.

Focus groups with pregnant smokers: barriers to cessation, attitudes to nicotine patch use and perceptions of cessation counselling by care providers.

Focus group methodology was used to determine the barriers to smoking cessation for pregnant women prior to the commencement of a randomised controlled smoking cessation trial (RCT), using nicotine patches in the treatment arm. Attitudes to the use of nicotine patches and perceptions of care provider counselling were also explored. Women were identified by researcher interview in the antenatal clinics as current smokers or recent 'quitters' and recruited to one of three focus groups. A number of barriers to achieving smoking cessation were identified. Pregnancy-specific barriers included scepticism about smoking-related harms. Other barriers, such as addiction to nicotine and the smoking behaviour of others, particularly partners, are generic. The latter is magnified in pregnancy by the heightened complexities of familial relationships. Potential use of patches was acceptable to most women, although some high-risk patients expressed doubts about safety and believed continued smoking was preferable. Women recounted that care providers differed in approaches to smoking cessation. Reporting 'cutting down' generally avoided further inquiries about smoking. The knowledge gained of pregnant women's perspectives enhanced the researchers' understanding in these areas. These insights have been incorporated into staff training initiatives, have guided the planning of the RCT, and have continued to inform its conduct.