Association of intraocular pressure and postoperative nausea and vomiting after microvascular decompression - a prospective cohort study

Table 1 Demographic and baseline characteristics of the study population

	All (n = 103)	IOP reduction (n = 56)	No IOP reduction (n = 47)	P value
Age, years, M ± SD	52.12 ± 9.09	51.71 ± 8.85	52.60 ± 9.43	0.626
Female, N (%)	70 (68.0)	40 (71.4)	30 (63.8)	0.410
BMI, kg/m², M ± SD	24.55 ± 3.00	24.65 ± 2.67	24.43 ± 3.37	0.179
Smoking, N (%)	18 (17.5)	9 (16.1)	9 (19.2)	0.682
Hypertension, N (%)	33 (32.0)	17 (30.4)	16 (34.0)	0.690
Hemoglobin, g/L, M ± SD	138.76 ± 15.76^#	138.82 ± 16.99	138.70 ± 14.30^*	0.968
Preoperative IOP
mmHg, M ± SD	16.93 ± 3.11	18.31 ± 3.06	15.30 ± 2.28	< 0.001
>21 mmHg, N (%)	15 (14.6)	13 (23.2)	2 (4.3)	0.007

M ± SD Mean ± standard deviation, IOP Intraocular pressure, BMI Body mass index
^* n = 46, 1 missing. ^# n = 102, 1 missing

ISSN: 1471-2253