Abstract
Background: National guidance recommends pregnant women are offered membrane sweeping at term to reduce induction of labour. Local audit suggested this was not being undertaken routinely across two maternity units in the West Midlands, UK between March and November 2012.
Methods: Bespoke training session for midwifery teams (9 community and 1 antenatal clinic) was developed to address identified barriers to encourage offer of membrane sweeping, together with an information leaflet for women and appointment of a champion within each team. The timing of training session on membrane sweeping to 10 midwifery teams was randomly allocated using a stepped wedge cluster randomised design. All women who gave birth in the Trusts after 39+3/40 weeks gestation within the study time period were eligible. Relevant anonymised data were extracted from maternity notes for three months before and after training. Data were analysed using a generalised linear mixed model, allowing for clustering and adjusting for temporal effects.
Main outcomes: Primary outcomes were number of women offered and accepting membrane sweeping and average number of sweeps per woman. Sub-group comparisons were undertaken for adherence to Trust guidance and potential influence of pre-specified maternal characteristics. Data included whether
sweeping was offered but declined and no record of membrane sweeping.
Results: Training was given to all teams as planned. Analyses included data from 2,787 of the 2,864 (97%) eligible low risk women over 39+4 weeks pregnant. Characteristics of the women were similar before and after training. No evidence of difference in proportion of women being offered and accepting membrane sweeping (44.4% before training versus 46.8% after training (adjusted Relative risk (aRR) 0.90, 95% CI (0.71, 1.13)), nor in average number of sweeps per woman (0.603 versus 0.627 (aRR) 0.83. 95% CI (0.67, 1.01)). No differences in any secondary outcomes nor influence of maternal characteristics was demonstrated. The midwives evaluated training positively.
Conclusions: This stepped wedge cluster trial enabled randomised evaluation within a natural roll out and demonstrates the importance of robust evaluation in circumstances in which it is rarely undertaken. While the midwives evaluated the training positively, it did not appear to change practice.
Retrospective Trials registration: Registered 23.08.2016 Biomed Central ISRCTN 14300475
Methods: Bespoke training session for midwifery teams (9 community and 1 antenatal clinic) was developed to address identified barriers to encourage offer of membrane sweeping, together with an information leaflet for women and appointment of a champion within each team. The timing of training session on membrane sweeping to 10 midwifery teams was randomly allocated using a stepped wedge cluster randomised design. All women who gave birth in the Trusts after 39+3/40 weeks gestation within the study time period were eligible. Relevant anonymised data were extracted from maternity notes for three months before and after training. Data were analysed using a generalised linear mixed model, allowing for clustering and adjusting for temporal effects.
Main outcomes: Primary outcomes were number of women offered and accepting membrane sweeping and average number of sweeps per woman. Sub-group comparisons were undertaken for adherence to Trust guidance and potential influence of pre-specified maternal characteristics. Data included whether
sweeping was offered but declined and no record of membrane sweeping.
Results: Training was given to all teams as planned. Analyses included data from 2,787 of the 2,864 (97%) eligible low risk women over 39+4 weeks pregnant. Characteristics of the women were similar before and after training. No evidence of difference in proportion of women being offered and accepting membrane sweeping (44.4% before training versus 46.8% after training (adjusted Relative risk (aRR) 0.90, 95% CI (0.71, 1.13)), nor in average number of sweeps per woman (0.603 versus 0.627 (aRR) 0.83. 95% CI (0.67, 1.01)). No differences in any secondary outcomes nor influence of maternal characteristics was demonstrated. The midwives evaluated training positively.
Conclusions: This stepped wedge cluster trial enabled randomised evaluation within a natural roll out and demonstrates the importance of robust evaluation in circumstances in which it is rarely undertaken. While the midwives evaluated the training positively, it did not appear to change practice.
Retrospective Trials registration: Registered 23.08.2016 Biomed Central ISRCTN 14300475
| Original language | English |
|---|---|
| Article number | 357 |
| Number of pages | 10 |
| Journal | Trials |
| Volume | 18 |
| DOIs | |
| Publication status | Published - 27 Jul 2017 |
Bibliographical note
Funding:This work was funded by the National Institute for Health Research (NIHR) through the Collaborations for Leadership in Applied Health Research and Care for Birmingham and Black Country (CLAHRC-BBC) programme (CLAHRC 2013 10018). The views expressed are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health.
Keywords
- stepped wedge cluster
- randomised evaluation of training for community midwives