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Correction to: On the use of the outcome variable “small for gestational age” when gestational age is a potential mediator: a maternal asthma perspective
BMC Medical Research Methodologyvolume 18, Article number: 17 (2018)
The original article was published in BMC Medical Research Methodology 2017 17:165
Following publication of the original article , the authors reported that the following four references inTable 2 were incorrect:
Lao et al. b
Braken et al. b
Bakhireva et al. b
Clark et al. b
These references have already been introduced in Table 1 and should read:
Lao et al. 
Bracken et al. 
Bakhireva et al. 
Clark et al. 
The original article has been updated.
Lefebvre G, Samoilenko M. On the use of the outcome variable “small for gestational age” when gestational age is a potential mediator: a maternal asthma perspective. BMC Med Res Methodol. 2017;17:165. https://doi.org/10.1186/s12874-017-0444-z.
The original article can be found online at https://doi.org/10.1186/s12874-017-0444-z.