The ESPN/KFF Survey of 1988 NFL Players included questions about their physical and mental health, their finances and families, and their attitudes about football today. Watch the Gilberts' story »Read the survey's methodologyThe ESPN/KFF Survey of 1988 NFL Players was designed and analyzed by public opinion researchers at KFF in collaboration with reporters at ESPN. The survey included a representative sample from the 1,532 former NFL players who participated in at least one game during the 1988 season. All survey participants were offered a $100 gift card or the option to donate the amount to Gridiron Greats, a charity supporting former NFL players. The final sample closely matched the demographics of all 1988 players, and no additional weighting adjustments were needed.