Impact of intraoperative fluid administration on outcome in patients undergoing robotic-assisted laparoscopic prostatectomy – a retrospective analysis

Table 1 Patient characteristics and continuous variables

Variable	n	#NA	Min	Max	Median	Trimmed mean	s	q ₁	q ₃	IQR
Age [years]	182	0	44	78	64	63	6	59	67	8
BMI	143	39	19.0	37.8	26.4	26.4	3.3	24.4	28.1	3.7
Blood loss [ml]	181	1	100	2000	400	426.8	315.2	300	600	300
Prostate weight [g]	182	0	8	197	42	45.4	24.5	34	55.5	22
Hospital stay [days]	182	0	4	23	8	8.1	3.1	7	9	2
Total volume of fluids [ml]	181	1	1200	9000	3600	3677	1325	2900	4400	1500
Duration of operation [min]	182	0	135	515	240	254.3	72.4	210	300	90
Total volume of colloids [ml]	181	1	0	2000	500	595.1	443.8	500	1000	500
Total volume of crystalloids [ml]	181	1	1000	8000	3000	3055.8	1183.4	2300	3600	1300
Hemoglobin concentration preoperative [mg/dl]	182	0	12.0	17.2	14.7	14.7	1.0	14.1	15.3	1.2
Hemoglobin concentration postoperative [mg/dl]	178	4	6.6	14.8	11.5	11.3	1.4	10.5	12.1	1.6

Patient characteristics and continuous variables; number of patients (n), number of missing values (#NA), minimum (Min), maximum (Max), standard deviation (s), 1st quartile (q1), 3rd quartile (q3), and interquartile range (IQR); BMI = body mass index.

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