Table 3.

Technical efficiency scores and returns to the scale of the public hospitals in KSA

	CRS technical efficiency	VRS technical efficiency	Scale efficiency	CRS (N (%))	IRS (N (%))	DRS (N (%))
All hospitals (n=91)
Mean	0.76	0.87	0.87	34 (37.4)	40 (44)	17 (18.6)
SD	0.23	0.18	0.18
Min	0.11	0.30	0.19
No full score	22 (24.2%)	47	25
Large hospitals: ≥500 beds (n=8)
Mean	0.65	0.75	0.87	2 (25)	1 (12.5)	5 (62.5)
SD	0.27	0.30	0.13
Min	0.28	0.30	0.59
No full score	1 (12.5%)	4	1
Upper-medium hospitals: 300–499 beds (n=22)
Mean	0.76	0.80	0.94	7 (31.8)	5 (22.7)	10 (45.5)
SD	0.19	0.19	0.07
Min	0.39	0.41	0.76
No full score	3 (13.6%)	7	3
Lower-medium hospitals: 200–299 beds (n=22)
Mean	0.73	0.79	0.90	10 (45.5)	10 (45.5)	2 (9.1)
SD	0.25	0.19	0.18
Min	0.11	0.50	0.22
No full score	4 (18.2%)	4	4
Small hospitals: <200 beds (n=39)
Mean	0.79	0.96	0.82	15 (38.5)	24 (61.5)	0 (0)
SD	0.23	0.09	0.22
Min	0.19	0.67	0.19
No full score	13 (33.3%)	31	13

CRS, Constant Returns to Scale; DRS, Decreasing Return to Scale; IRS, Increasing Returns to Scale; KSA, Kingdom of Saudi Arabia; SD, standard deviation; VRS, Variable Returns to Scale.