Table 2 Description of key model variables
Variables | Operational definition | Type of variable | Instrument used | Source of the data |
|---|---|---|---|---|
Demographic and epidemiologic variables | ||||
 Population data | The initial number of people with a diagnosis of schizophrenia in each township | Continuous | Survey, records | Published literature, medical records, the 686 Program registry |
 Mortality rate | Incidence of death due to any reason | Continuous | Survey, records | Parent study, Medical record |
 Morbidity rate | Incidence of developing relapse | Continuous | Survey, records | Parent study, Medical record |
 Prevalence of Schizophrenia | National schizophrenia prevalence | Continuous | Survey, records | Published literature, China Health Statistical Yearbook |
Outcome variables | ||||
 Medication adherence | The proportion of antipsychotic dosages taken over the past 30 days | Continuous | Unannounced pills count | Parent study, the 686 Program medication prescribing system |
 Relapse | Clinically significant exacerbation of psychotic symptoms | Dichotomous | Interview (self-report and/or caregiver report) | Parent study |
 Re-hospitalization | Re-hospitalization due to schizophrenia | Dichotomous | interRAI MH | Parent study, Medial record, field work |
 Functioning | Level of difficulty in accomplishing tasks and activities over the past 30 days | Ordinal | WHODAS 2.0 | Parent study |
 Symptoms | Severity of psychotic symptoms | Ordinal | CGI-Sch | Parent study |
Program cost variables | ||||
 Intervention cost | • Cost of training in preparation for LEAN • Cost of identifying individuals with schizophrenia • Cost of assessing medication adherence • Cost of message development and management • Cost of phones • Cost of texting to patients and lay-health supporters | Continuous | Cost estimating tool | Fieldwork to be conducted as part of the study, parent study |
 Human resource cost | Cost of family members, lay health supporters, and health professionals (village doctors, mental health administrators, and psychiatrists) | Continuous | Cost estimating tool | Fieldwork to be conducted as part of the study |
 Medication cost | Antipsychotics cost incurred due to increased adherence | Continuous | Cost estimating tool | Fieldwork to be conducted as part of the study |
Indirect non-medical costs: • Efficiency at work Absenteeism at work | • Number of days with reduced efficiency due to feeling ill • Number of days absent from work | Continuous | TiC-P | Fieldwork to be conducted as part of the study |