Additional file 1 of Exposure to second-hand smoke during early life and subsequent sleep problems in children: a population-based cross-sectional study

Additional file 1: eTable.1. Basic information of previous observational studies regarding the associations of exposure to SHS with sleep-related problems in general children populationα. eTable.2. Summaries of the results of previous observational studies regarding the associations of exposure to SHS with sleep-related problems in general children population. eTable.3. Distribution of the SDSC score in the participants. eTable.4. Associations of SHS exposure during early life using prenatal and early postnatal periods with the scores of the SDSC in children aged 6–18 yearsa. eTable.5. Associations of SHS exposure during early life using prenatal and early postnatal periods with the increased problems within the clinical range using the SDSC in children aged 6–18 yearsa. eTable.6. Associations of SHS exposure during early life with sleep problems in asthmatic childrena. eTable.7. Associations of current SHS exposure with simultaneous sleep problems in children aged 6–18 yearsa.