The US fire administration report on fire risk (2016) indicates that 3 515 people died in fires in 2016 and 14 650 people were injured. The risk of fire death was higher for adults over 50, and highest over 85, but also important for young children (up to 4). Fire risk was also higher by race and for lower income households, showing the social inequality of fire risk. The report notes that today only 3% of US homes are not equipped with a smoke alarm, but does not provide data on whether or not these were functional or whether they sounded in fires.
U.S. Fire Administration – FEMA “Fire risk in 2016” https://www.usfa.fema.gov/downloads/pdf/statistics/v19i6.pdf