Table 2. Overview of study components.

Component number	Research question	Method	Instruments	Sample size (N)
1	How many persons affected by depression, alcohol use disorder, psychoses, and epilepsy contact a health worker for help?	Community survey	PHQ-9 AUDIT	3,482
		Surveillance data	HMIS records	n/a
2	How many persons attending healthcare services are correctly detected with mental illness?	Facility survey	PHQ-9 AUDIT	3,627
3	How many persons diagnosed with MNS disorders receive minimally adequate care?	Facility survey	OPD records, reviewed by psychiatrist
4	Are persons with MNS disorders benefiting from treatments delivered by primary health workers?	Cohort studies	PHQ-9 AUDIT WHODAS PANSS SIP-2R Epileptic seizures	449

AUDIT, Alcohol Use Disorders Identification Test; HMIS, health information management system; MNS, mental, neurological, and substance abuse; n/a, not applicable; OPD, outpatient department; PANSS, Positive and Negative Syndrome Scale; PHQ-9, Patient Health Questionnaire–9 item; SIP-2R, Short Inventory of Problems–Revised; WHODAS, WHO Disability Assessment Schedule.