Secondhand smoke and incidence of dental caries in deciduous teeth among children in Japan: population based retrospective cohort studyBMJ 2015; 351 doi: https://doi.org/10.1136/bmj.h6425 (Published 26 November 2015) Cite this as: BMJ 2015;351:h6425
Table 1 in this Research paper (BMJ 2015;351:h5397, doi:10.1136/bmj.h5397) contains some errors. Several of the listed numbers of girls and first births are incorrect in the three columns categorising infants’ exposure to tobacco smoke at 4 months of age. Here are the correct values for girls and first births, respectively: 16 756 (48.7%) and 10 835 (45.7%) for infants not exposed to secondhand smoke, 18 145 (48.7%) and 12 144 (49.7%) for infants exposed to only household smoking, and 2560 (48.6%) and 1002 (30.3%) for infants exposed to tobacco smoke. These errors only appear in table 1 and the numbers are not referred to in the main text.
Cite this as: BMJ 2015;351:h6425