This is the peer reviewed version of the following article: Tham, E.H., Tan, P.T., Loo, E.X.L., Goh, A.E.N., Teoh, O.H., Yap, F., Tan, K.H., Godfrey, K.M., Van Bever, H.P., Lee, B.W., Finkelstein, E.A., Chong, Y.S. and Shek, L.P.‐C. (2019), Early childcare enrollment and childhood wheezing phenotypes. Pediatr Allergy Immunol, 30: 122-127. doi:10.1111/pai.12983, which has been published in final form at https://doi.org/10.1111/pai.12983. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.