Does overnight duty affect vascular endothelial function?

Table 1 Comparison between before duty and after duty

Variables	Before duty	After duty	p value
Variables	Mean ± SD	Mean ± SD	p value
CFQ scale	9 ± 4	17 ± 4	< 0.05
Sleep duration (h)	6.0 ± 1.2	2.3 ± 1.0	< 0.05
VAS scale (%)	36 ± 16	64 ± 12	< 0.05
RHI	2.12 ± 0.53	1.97 ± 0.50	0.21
HR (bpm)	69 ± 9	64 ± 7	0.01
SBP (mmHg)	110 ± 9	112 ± 11	0.35
DBP (mmHg)	64 ± 7	64 ± 7	0.98
SDNN (ms)	46.59 ± 17.27	53.52 ± 15.28	0.08
rMSSD (ms)	40.27 ± 22.37	51.63 ± 23.33	0.04
NN50 (ms)	23.32 ± 22.89	35.06 ± 22.83	0.03
pNN50 (ms)	0.96 ± 3.80	0.12 ± 0.08	0.18
LF (ms²)	12.49 ± 4.51	14.16 ± 4.12	0.72
HF (ms²)	116.09 ± 59.44	120.92 ± 52.75	0.62
LF/HF	177.97 ± 68.65	186.20 ± 70.11	0.47
AI (%)	0.77 ± 0.54	0.90 ± 0.91	0.33
AI@75 bpm (%)	− 2.54 ± 11.06	0.29 ± 13.18	0.97

Comparison of PAT data of healthy people before and after duty are shown in Table 1. Data are presented here as mean ± standard deviation
AI, augmentation index; AI@75 bpm, augmentation index adjusted at heart rate 75 bpm; CFQ, Chalder Fatigue Question; DBP, diastolic blood pressure; HF, high frequency; HR, heart rate; LF, low frequency; LF/HF, the ratio between low-frequency and high-frequency; N, number; VAS, visual analog scale; NN50, number of N–N differing by more than 50 ms; pNN50, NN50 divided by the total number of N–N intervals; RHI, Reactive hyperemia index; rMSSD, root mean squared standard deviation; SBP, systolic blood pressure; SD, standard deviation; SDNN, standard deviation of normal-to-normal intervals
Statistical analysis was done with paired t test, where p < 0.05 was considered as significant

ISSN: 1471-2261