When assessing the safety of any medical intervention, the least biased data will come from malpractice insurance carriers. As an example, take a look at the following averages for medical malpractice costs for doctors in the state of Florida.
Internal medicine: $25,000-45,000/year
OBGYN: $110,000 – 200,000/year
Chiropractors: $500 – 3,000/year.
Malpractice insurance carriers do not use myth or bias to determine their premiums. They use raw data based on the likelihood a patient would suffer injury and/or there would be litigation against the doctor. The fact that chiropractors pay a fraction of a fraction of what all medical doctors pay for malpractice is a clear indicator as to its safety.