Percentage of American boys circumcised in 1963-65: 76
In 1999: 65.3
In 2003: 55.9
Percentage of American pediatricians who recommend circumcision to all parents: 24
Percentage of American pediatricians who discourage circumcision: 9.4
Percentage of American pediatricians who make no recommendation: 50.4

Mean number of parents refusing immunization, per 1000 children according to one survey: 7.2
Immunization refusals based on fear of side effects: 52%
On religious belief: 28%
On anti-government sentiment: 8%
Number of new U.S. cases of polio each year in the 1950s: 20,000
Year polio vaccination was begun: 1955
Number of cases of wild polio per year in the U.S. today: 0

Percentage of people under the age of 21 who have Autism: 0.2-0.6
Number of American children diagnosed with ADHD: 4.4 million
Number of American children receiving ADHD medication: 2.5 million

Increase in diabetes rates among people under the age of 44 since 1980: 100%
Number of diabetes cases today that are type 2 (formerly considered "geriatric") diabetes: 90-95 percent
Fraction of American children born five years ago who are expected to develop diabetes: 1/3

Number of American children with asthma: 5 million
Number of schooldays missed due to asthma every year: 14 million
How asthma ranks among reasons for hospitalizations of 3 – 12-year olds: #1
Increase in death rate for asthma among children since 1980: 80%
Percentage of summer campers on one or more medications for chronic conditions: 40