摘要：In "Youth health services, development programs, and teenage birth rates in 55 California cities" [2006, 4(1):46-57], Mike Males concludes that "lower-income teens have greater access to health, sexuality education, and development services, and the availability of these services is not associated with lower rates of or greater reductions over time in teenage birth rates." We argue that these conclusions are not supported by the data, and that the analyses and causal reasoning that Dr. Males employs are flawed in several fundamental ways
