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This interventional pilot study was conducted in a primary care clinic to determine if patients would become more engaged in their own health and ask more questions of their physicians if they were provided data about patients similar to themselves. The study was conducted with 150 patients with a diagnosis of hypertension who had scheduled appointments with one of three participating physicians in the clinic. When they arrived at the clinic for their appointment, the patients were shown de-identified clinical data about similar patients with hypertension on a computer screen, given a printout of this information, and then proceeded to visit their physician. After the physician visit the patients completed a short survey. Their answers to the survey questions are recorded in the data file together with additional information about them, such as age, gender, race, smoking status and comorbidities.

The three participating physicians completed a short survey at the end of the study. The results of that survey are summarized in a table provided with the technical documentation.

The NCS-2 was a re-interview of 5,001 individuals who participated in the Baseline (NCS-1). The study was conducted a decade after the initial baseline survey. The aim was to collect information about changes in mental disorders, substance use disorders, and the predictors and consequences of these changes over the ten years between the two surveys. The collection contains three major sections: the main survey, demographic data, and diagnostic data.

In the main survey, respondents were asked about general physical and mental health. Questions focused on a variety of health issues, including limitations caused by respondents' health issues, substance use, childhood health, life-threatening illnesses, chronic conditions, medications taken in the past 12 months, level of functioning and symptoms experienced in the past 30 days, and any services used by the respondents since the (NCS-1). Additional questions focused on mental disorders including depression, bipolar disorder, specific and social phobias, generalized anxiety, intermittent explosive disorder, suicidality, post-traumatic stress disorder, neurasthenia, pre-menstrual dysphoric disorder, attention deficit/hyperactivity disorder, oppositional defiant disorder, conduct disorder, and separation anxiety. Respondents were also asked about their lives in general, with topics including employment, finances, marriage, children, their social lives, and stressful life events experienced in the past 12 months. Additionally, two personality assessments were included consisting of respondents' opinions on whether various true/false statements accurately described their personalities. Another focus of the main survey dealt with substance use and abuse, nonmedical use of prescription drugs, and polysubstance use. Interview questions in the NCS-2 Main Survey were customized to each respondent based on previous responses in the Baseline (NCS-1).

The middle section contains demographic and other background information including age, education, employment, household composition, household income, marital status, and region.

The last section of the collection focused on whether respondents met diagnostic criteria for psychological disorders asked about in the main survey.

The NCS-2 was a re-interview of 5,001 individuals who participated in the Baseline (NCS-1). The study was conducted a decade after the initial baseline survey. The aim was to collect information about changes in mental disorders, substance use disorders, and the predictors and consequences of these changes over the ten years between the two surveys. The collection contains four major sections: the main survey, demographic data, diagnostic data, and state, county, and tract FIPS data.

In the main survey, respondents were asked about general physical and mental health. Questions focused on a variety of health issues, including limitations caused by respondents' health issues, substance use, childhood health, life-threatening illnesses, chronic conditions, medications taken in the past 12 months, level of functioning and symptoms experienced in the past 30 days, and any services used by the respondents since the (NCS-1). Additional questions focused on mental disorders including depression, bipolar disorder, specific and social phobias, generalized anxiety, intermittent explosive disorder, suicidality, post-traumatic stress disorder, neurasthenia, pre-menstrual dysphoric disorder, attention deficit/hyperactivity disorder, oppositional defiant disorder, conduct disorder, and separation anxiety. Respondents were also asked about their lives in general, with topics including employment, finances, marriage, children, their social lives, and stressful life events experienced in the past 12 months. Additionally, two personality assessments were included consisting of respondents' opinions on whether various true/false statements accurately described their personalities. Another focus of the main survey dealt with substance use and abuse, nonmedical use of prescription drugs, and polysubstance use. Interview questions in the NCS-2 Main Survey were customized to each respondent based on previous responses in the Baseline (NCS-1).

The second part contains demographic and other background information including age, education, employment, household composition, household income, marital status, and region.

The third part focuses on whether respondents met diagnostic criteria for psychological disorders asked about in the main survey.

The fourth part contains respondents' state, county, and tract FIPS data.

The National Study of Physician Organizations and the Management of Chronic Illness (NSPO) was designed to improve understanding of evidence-based care management processes (CMPs) as they relate to physician organizations (POs), that is, independent practice associations (IPAs) and medical groups. Since the first NSPO survey of physician organizations in 2000-2001 (NSPO1, archived as ICPSR 4455), considerable investments have been made by a number of different sources, including the Robert Wood Johnson Foundation, the California Healthcare Foundation, and The Commonwealth Fund, to bring about improved care for the chronically ill. This survey, the second NSPO survey of IPAs and medical groups (NSPO2), examined the extent to which the investments in quality improvement were translated into action. NSPO2 assessed the status of CMPs and preventive services use as well as their key drivers in 2006-2007 and the extent to which these factors have changed over time. As in the first NSPO survey, NSPO2 focused on the treatment of four chronic diseases: asthma, congestive heart failure (CHF), depression, and diabetes. Topics covered by the survey include practice type, size, age, ownership, and number of locations; clinical information systems; care management and clinical practice; activities of health insurance plans in chronic illness care; performance incentives; preventative care and health promotion; and organizational culture.

This collection has two data files. The first file contains the NSPO2 survey data, while the second contains a crosswalk between the NSPO1 and NSPO2 case identification numbers which can be used to link the data of the POs that responded to both surveys. Altogether, 369 of the 1,104 POs that responded to NSPO1 also responded to NSPO2.

Funded by the Robert Wood Johnson Foundation, the National Study of Small and Medium-sized Physician Practices (NSSMPP) was designed to provide information about physician practices with 1-19 physicians. The survey focused on the use of information technology and care management processes for four major chronic illnesses: asthma, congestive heart failure, depression, and diabetes. Other topics covered by the survey include practice type, size, ownership and the breakdown of patients by race and Hispanic origin; clinical preventative services and health promotion; health insurance plan activities in preventative care and care for patients with chronic illness; performance reporting and incentives; revenue sources and compensation methods; and organizational culture.

NSSMPP was also designed to assist the RWJF-funded Aligning Forces for Quality (AF4Q) project by providing baseline data about small and medium sized practices in the AF4Q sites. AF4Q was a national program that aimed to lift the quality of health care in 16 targeted communities, reduce racial and ethnic disparities in those communities and provide models for national reform.

NSSMPP built on two previous studies -- the National Study of Physician Organizations and the Management of Chronic Illness (NSPO), 2000-2001 (ICPSR 4455) and the National Study of Physician Organizations and the Management of Chronic Illness II (NSPO2), 2006-2007 (ICPSR 29801) -- which collected information about medical groups and independent practice associations (IPAs) with 20 or more physicians.