Table 7. Compounded Annual Percentage Change in Cost per Unit of Output by Type of Control—by Cost Center Group (Part A) and by Specific Cost Center (Part B).

Part A	Time Period	Type of Control
		Non-Federal	Non-Government	For Profit
Cost Center Group	Covered	Government	Non-Profit
General Services	1973-1978	14.3	13.5	16.7
Ancillary Services	1973-1978	18.1	17.2	20.0
Inpatient Services	1973-1978	17.4	14.8	11.4
Outpatient Services1	1973-1978	13.1	11.4	—
Other Cost Centers	1973-1978	26.0	9.0	14.8
Total Direct Cost	1973-1978	16.0	14.7	16.7

Part B	Time Period	Type of Control
		Non-Federal	Non-Government	For Profit
Cost Center	Covered	Government	Non-Profit
General Services
Operation and Maintenance of Plant	1971-1978	14.6	15.5	13.8
Administration and General	1971-1978	12.1	12.3	14.6
Housekeeping	1971-1978	10.5	9.6	10.7
Dietary and Cafeteria	1971-1978	8.4	8.2	9.1
Ancillary Services
Operating Room, Recovery Room, and Anesthesiology	1971-1978	14.6	13.2	9.7
Labor and Delivery Room	1971-1978	13.2	8.6	11.0
Radiology	1971-1978	15.0	14.7	15.4
Laboratory	1971-1978	14.4	12.2	11.7
Inhalation Therapy	1971-1978	21.6	18.3	21.7
Physical Therapy	1971-1978	14.3	13.0	18.5
All Other	1973-1978	22.5	23.4	31.5
Inpatient Services
Adult and Pediatrics and Nursing Administration	1973-1978	11.3	11.0	10.3
Special Care Units	1973-1978	26.4	19.3	20.6
Total Direct Cost	1971-1978	13.7	12.5	13.0

NOTE: Cost is measured per patient day for Inpatient Services, per occasion of service for Outpatient Services, and per adjusted patient day for General Services, Ancillary Services, Other Cost Centers, and Total Direct Cost.

¹Outpatient Services costs are measured using a 40 percent smaller sample than used for all other services due to underreporting—omitted for profit-making hospitals due to an unacceptably small sample.