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Table 1 Eight site factors to be balanced over time in the BHIP-CCM study

From: A method to reduce imbalance for site-level randomized stepped wedge implementation trial designs

Continuous factors

Categorical/ordinal factors

All-Employee Survey item on psychological safety

VA geographic region

Number of BHIP teams previously established

Urban/Rural/Highly Rural

Number of patients seen in general mental health clinics in the prior year

VA facility complexity category (a five-level index including relevant characteristics such as array of available services, inpatient care intensity, size of training programs, etc.)

Percentage of primary care patients seen in integrated primary care/mental health teams (an index of system redesign experience)

Proportion of clinic visits conducted via telephone (an index of use of non-traditional treatment methods)