Correction: BMC Med Res Methodol 23, 10 (2023)
https://doi.org/10.1186/s12874-023-01833-8
Following publication of the original article [1], the authors reported an error in the Fig. 4: the colours in the pie charts in Fig. 4 do not all correspond with the legend. See the Fig. 4 corrected.
Breakdown of total costs across the surveys
The original article [1] has been updated.
Reference
Harrison S, Alderdice F, Quigley MA. Impact of sampling and data collection methods on maternity survey response: a randomised controlled trial of paper and push-to-web surveys and a concurrent social media survey. BMC Med Res Methodol. 2023;23:10. https://doi.org/10.1186/s12874-023-01833-8.
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Harrison, S., Alderdice, F. & Quigley, M.A. Correction: Impact of sampling and data collection methods on maternity survey response: a randomised controlled trial of paper and push‑to‑web surveys and a concurrent social media survey. BMC Med Res Methodol 24, 100 (2024). https://doi.org/10.1186/s12874-024-02216-3
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DOI: https://doi.org/10.1186/s12874-024-02216-3