Estimating technical efficiency of Turkish hospitals: implications for hospital reform initiatives

Yildiz, Mustafa S.; Heboyan, Vahé; Khan, M. Mahmud

doi:10.1186/s12913-018-3239-y

BMC Health Services Research

Table 6 Frontier estimation results – translog production function

From: Estimating technical efficiency of Turkish hospitals: implications for hospital reform initiatives

Variable	Coef.	Std. Error	Z	P > z	95% Conf. Interval
Frontier Model: dependent variable = log(output)
Inpatient hospital beds (log)	−0.3904	0.2548	−1.5300	0.1250	−0.8899	0.1090
Non-doctor clinicians (log)	1.1531	0.3090	3.7300	0.0000	0.5474	1.7587
Doctors (log)	− 0.4522	0.2831	−1.6000	0.1100	−1.0071	0.1027
Devices (log)	0.2977	0.2337	1.2700	0.2030	−0.1602	0.7557
Devices dummy (=1 if no device)	−0.6614	0.2165	−3.0600	0.0020	−1.0857	− 0.2372
ICU beds (log)	2.5584	0.1710	14.9600	0.0000	2.2232	2.8937
ICU beds dummy (=1 if no beds)	−0.0167	0.1205	−0.1400	0.8900	−0.2528	0.2194
Administrative staff (log)	0.3217	0.1278	2.5200	0.0120	0.0713	0.5722
lnbed²	0.0328	0.0436	0.7500	0.4510	−0.0526	0.1183
lnclinicians²	−0.1171	0.0752	−1.5600	0.1190	−0.2645	0.0302
lndoctors²	0.0903	0.0726	1.2400	0.2130	−0.0519	0.2325
lndevices²	0.0221	0.0270	0.8200	0.4130	−0.0308	0.0750
lnicubeds²	0.1862	0.0259	7.1800	0.0000	0.1354	0.2371
lnadmin²	0.0194	0.0196	0.9900	0.3210	−0.0189	0.0578
lnbed × lnclinicians	0.1086	0.1035	1.0500	0.2940	−0.0942	0.3113
lnbed × lndoctors	−0.1246	0.1150	−1.0800	0.2790	−0.3500	0.1009
lnbed × lndevices	−0.0157	0.0941	−0.1700	0.8670	−0.2002	0.1687
lnbed × lnicubeds	−0.0876	0.0578	−1.5200	0.1290	−0.2008	0.0256
lnbed × lnadmin	0.0598	0.0542	1.1000	0.2700	−0.0464	0.1660
lnclinicians × lndoctors	0.2428	0.1102	2.2000	0.0280	0.0269	0.4587
lnclinicians × lndevices	−0.0267	0.1076	−0.2500	0.8040	−0.2377	0.1842
lnclinicians × lnicubeds	−0.2386	0.0606	−3.9400	0.0000	−0.3574	−0.1198
lnclinicians × lnadmin	−0.2112	0.0566	−3.7300	0.0000	−0.3221	−0.1002
lndoctors × lndevices	−0.1513	0.1005	−1.5100	0.1320	−0.3483	0.0457
lndoctors × lnicubeds	−0.1510	0.0571	−2.6400	0.0080	−0.2629	−0.0391
lndoctors × lnadmin	0.0583	0.0691	0.8400	0.3990	−0.0771	0.1938
lndevices × lnicubeds	0.0362	0.0457	0.7900	0.4280	−0.0533	0.1257
lndevices × lnadmin	0.1196	0.0521	2.3000	0.0220	0.0176	0.2216
lnicubeds × lnadmin	−0.0522	0.0327	−1.6000	0.1100	−0.1162	0.0118
Constant	8.5814	0.5541	15.4900	0.0000	7.4953	9.6675

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