TY  - JOUR
PY  - 2015//
TI  - Resting respiratory sinus arrhythmia is related to longer hospitalization in mood-disordered repetitive suicide attempters
JO  - World journal of biological psychiatry
A1  - Lin, Ying
A1  - Lin, Chen
A1  - Sun, I-Wen
A1  - Hsu, Chien-Chi
A1  - Fang, Chun-Kai
A1  - Lo, Men-Tzung
A1  - Huang, Hui-Chun
A1  - Liu, Shen-Ing
SP  - 323
EP  - 333
VL  - 16
IS  - 5
N2  - OBJECTIVES: Our aims were (1) to measure respiratory sinus arrhythmia (RSA), a high-frequency spectrum component of heart rate variability (HRV) in mood-disordered suicide attempters and (2) to investigate the relationship of RSA to symptoms and length of hospitalization. <br><br>METHODS: Forty-nine female repetitive-suicide attempters with depressive disorder or bipolar disorder were recruited in a general hospital setting. Manic or psychotic patients were excluded. Resting RSA values were calculated from electrocardiogram data, and severity of clinical presentation shortly after admission and length of hospital stay were assessed. <br><br>RESULTS: RSA was positively associated with a higher Beck Scale for Suicidal Ideation score (r = 0.33 P = 0.019). Stepwise multiple regression analysis showed a significant correlation between RSA and hospitalization length after adjusting other variables (beta coefficient = 3.00; P = 0.030). Patients with a higher resting RSA had more prolonged hospitalizations (hospitalization beyond 30 days) after controlling for other variables (odds ratio = 5.08, P = 0.017). <br><br>CONCLUSIONS: Interaction between the environment and the autonomic nervous system is complex. Further and more comprehensive research is needed.<p />  <p>Language: en</p>
LA  - en
SN  - 1562-2975
UR  - http://dx.doi.org/10.3109/15622975.2015.1017603
ID  - ref1
ER  -