James A. Peterson

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This paper offers an explanation for the counterintuitive relationship between physician competition and Medicaid participation found by many investigators. Contrary to standard predictions, a number of studies have found strong negative relationships between the supply of physicians and Medicaid participation and equally strong positive relationships(More)
Longer retention in drug abuse treatment is associated with better patient outcomes, and research indicates the first 12 months of methadone treatment are critical to patient success. Nevertheless, large-scale multisite longitudinal studies over the past three decades indicate that the majority of patients drop out during the first year of methadone(More)
BACKGROUND Despite the proven effectiveness of methadone treatment, the majority of heroin-dependent individuals are out-of-treatment. METHODS Twenty-six opioid-dependent adults who met the criteria for methadone maintenance who were neither seeking methadone treatment at the time of study enrollment, nor had participated in such treatment during the past(More)
This study compared the characteristics of opioid-addicted adults seeking (n = 169) and not seeking (n = 74) methadone treatment in Baltimore, Maryland. Participants entering treatment were recruited from six methadone treatment programs, while out-of-treatment participants were recruited from the streets using targeted sampling methods. Measures included(More)
The growing concentration of lower-income groups, including Medicaid patients, in homogeneous inner-city areas such as Chicago casts considerable doubt on the effectiveness of expanding Medicaid eligibility and raising physician reimbursement to improve access to maternity care. There are few private office-based physicians providing prenatal care in these(More)
OBJECTIVE Gender differences were explored among 355 in- and out-of-treatment opioid-addicted adults in Baltimore. METHODS Addiction Severity Index and other variables were compared among: 1) in-treatment women vs. out-of-treatment women; 2) out-of-treatment: women vs. men; and, 3) in-treatment: women vs. men. RESULTS Analysis indicated that(More)
Attitudes and beliefs about drug abuse treatment have long been known to shape response to that treatment. Two major pharmacological alternatives are available for opioid dependence: methadone, which has been available for the past 40 years, and buprenorphine, a recently introduced medication. This mixed-methods study examined the attitudes of(More)
In this article we examine how increasing the reimbursement of physicians and expanding Medicaid eligibility affect access to care for children in Cook County, Illinois, which overlies Chicago. Using Medicaid claims and other data at the zip-code level, we compare the places where Medicaid children live with the places where all the physicians who treat(More)
This study examined the uses of diverted methadone and buprenorphine among opiate-addicted individuals recruited from new admissions to methadone programs and from out-of-treatment individuals recruited from the streets. Self-report data regarding diversion were obtained from surveys and semi-structured qualitative interviews. Approximately 16% (n = 84) of(More)
Both heroin-addicted individuals and methadone maintenance patients are likely to face untreated opioid withdrawal while incarcerated. Limited research exists concerning the withdrawal experiences of addicted inmates and their impact on individuals' attitudes and plans concerning drug abuse treatment. In the present study, 53 opioid dependent adults (32 in(More)