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. Author manuscript; available in PMC: 2009 Dec 1.
Published in final edited form as: Arch Psychiatr Nurs. 2008 Oct 15;22(6):334–343. doi: 10.1016/j.apnu.2007.11.002

Table 3.

Background variables with operational definitions, sample size, means, standard deviations and percentages

Variable Operational Definitions Analysis N Mean SD

Age A continuous variable of chronological years. 84 43 10

Hospitalizations Continuous variable measuring lifetime number of hospitalizations Hospitalizations 84 8.8 12.3
Truncated & Transformed 2.53 0.7

Duration/Years of treatment Continuous variable measuring years since first receiving mental health treatment Years of treatment 84 20 11
Transformed by square root. 84 4.3 1.3

N Category %

Employment Two employment categories including unemployed and other. 84 Unemployed (69%)
Other (31%)

Gender Two gender categories including male and female. 84 Male (58%)
Female (42%)

Race Two race categories including African-American and other. 84
African-Am = 1 Af-Am (25%)
Other = 0 Other (75%)

Marital status Two marital status categories including: single and other. 84
Single = 1 Single (93%)
Other = 0 Other (7%)

Housing Two housing categories including 84
Independent = 1 Independent (76%)
Other = 0 Other (24%)

Household income level Two Income categories: 84
1 = <$10,000 <$10,000: (76%)
0 = > or = $10,000 > or = $10,000 (24%)

Education Four education categories including: some high-school, graduated high school, some college and graduated college. 84 Some high school: (14%)
High school grad: (30%)
Some college: (35%)
College grad: (21%)

Rurality: Two rurality categories including: major cities zip codes and others. 84
Rural = 1 Rural: (17%)
Nonrural = 0 Non-rural: (83%)

Prescriber Two categories including 84 Physician (77%)
1 = Nurse practitioner Nurse Practitioner (23%)
0 = Physician