1.A population-based study on meteorological conditions in association with motor vehicle collisions among people with type 2 diabetes.
Chung-Yi LI ; Ya-Hui CHANG ; Hon-Ping MA ; Ping-Ling CHEN ; Chang-Ta CHIU ; I-Lin HSU
Environmental Health and Preventive Medicine 2025;30():91-91
BACKGROUND:
Prior studies have shown that drivers with type 2 diabetes are more likely to be involved in motor vehicle collisions (MVCs) compared to the general population. Certain meteorological factors have been increasingly recognized as contributors to MVC risk. This study aims to examine the association of MVCs with temperature, rainfall, wind speed, and sunshine duration among drivers with type 2 diabetes.
METHODS:
Using Taiwan's National Health Insurance data (2019-2021), we identified individuals diagnosed with type 2 diabetes and linked their records to the Police-Reported Traffic Accident Registry to obtain daily MVC counts. Meteorological data were sourced from the Central Weather Administration. Associations between daily weather conditions and MVCs were assessed using a Distributed Lag Non-Linear Model.
RESULTS:
Over the 1,096-day study period, 170,468 MVC events involving drivers with type 2 diabetes were recorded. A U-shaped association was observed between same-day temperature and MVC rates. Compared with the reference temperature of 17.5 °C, both lower temperatures (≤15 °C; rate ratio [RR] = 1.014-1.053) and higher temperatures (≥30 °C; RR = 1.062) were associated with increased MVC risk. Rainfall showed an inverse relationship with MVCs. Compared with 70 mm of rainfall, the lowest MVC rate occurred at 129 mm (RR = 0.873), while the highest was on rain-free days (0 mm; RR = 1.068). Stronger effects were observed when lag periods up to 14 days were considered. Wind speed and sunshine duration were not significantly associated with MVC risk.
CONCLUSIONS
These findings suggest that drivers with type 2 diabetes should exercise greater caution on days with extreme temperatures or in days with lesser rainfall, as these conditions may elevate MVC risk.
Humans
;
Diabetes Mellitus, Type 2/epidemiology*
;
Taiwan/epidemiology*
;
Accidents, Traffic/statistics & numerical data*
;
Male
;
Middle Aged
;
Female
;
Weather
;
Aged
;
Adult
;
Temperature
;
Risk Factors
2.Differential Analysis of Heart Rate Variability in Repeated Continuous Performance Tests Among Healthy Young Men
Chung-Chih HSU ; Tien-Yu CHEN ; Jia-Yi LI ; Terry B. J. KUO ; Cheryl C. H. YANG
Psychiatry Investigation 2025;22(2):148-155
Objective:
Executive function correlates with the parasympathetic nervous system (PNS) based on static heart rate variability (HRV) measurements. Our study advances this understanding by employing dynamic assessments of the PNS to explore and quantify its relationship with inhibitory control (IC).
Methods:
We recruited 31 men aged 20–35 years. We monitored their electrocardiogram (ECG) signals during the administration of the Conners’ Continuous Performance Test-II (CCPT-II) on a weekly basis over 2 weeks. HRV analysis was performed on ECG-derived RR intervals using 5-minute windows, each overlapping for the next 4 minutes to establish 1-minute intervals. For each time window, the HRV metrics extracted were: mean RR intervals, standard deviation of NN intervals (SDNN), low-frequency power with logarithm (lnLF), and high-frequency power with logarithm (lnHF). Each value was correlated with detectability and compared to the corresponding baseline value at t0.
Results:
Compared with the baseline level, SDNN and lnLF showed marked decreases during CCPT-II. The mean values of HRV showed significant correlation with d’, including mean SDNN (R=0.474, p=0.012), mean lnLF (R=0.390, p=0.045), and mean lnHF (R=0.400, p=0.032). In the 14th time window, the significant correlations included SDNN (R=0.578, p=0.002), lnLF (R=0.493, p=0.012), and lnHF (R=0.432, p=0.031). Significant correlation between d’ and HRV parameters emerged only during the initial CCPT-II.
Conclusion
A significant correlation between PNS and IC was observed in the first session alone. The IC in the repeated CCPT-II needs to consider the broader neural network.
3.Differential Analysis of Heart Rate Variability in Repeated Continuous Performance Tests Among Healthy Young Men
Chung-Chih HSU ; Tien-Yu CHEN ; Jia-Yi LI ; Terry B. J. KUO ; Cheryl C. H. YANG
Psychiatry Investigation 2025;22(2):148-155
Objective:
Executive function correlates with the parasympathetic nervous system (PNS) based on static heart rate variability (HRV) measurements. Our study advances this understanding by employing dynamic assessments of the PNS to explore and quantify its relationship with inhibitory control (IC).
Methods:
We recruited 31 men aged 20–35 years. We monitored their electrocardiogram (ECG) signals during the administration of the Conners’ Continuous Performance Test-II (CCPT-II) on a weekly basis over 2 weeks. HRV analysis was performed on ECG-derived RR intervals using 5-minute windows, each overlapping for the next 4 minutes to establish 1-minute intervals. For each time window, the HRV metrics extracted were: mean RR intervals, standard deviation of NN intervals (SDNN), low-frequency power with logarithm (lnLF), and high-frequency power with logarithm (lnHF). Each value was correlated with detectability and compared to the corresponding baseline value at t0.
Results:
Compared with the baseline level, SDNN and lnLF showed marked decreases during CCPT-II. The mean values of HRV showed significant correlation with d’, including mean SDNN (R=0.474, p=0.012), mean lnLF (R=0.390, p=0.045), and mean lnHF (R=0.400, p=0.032). In the 14th time window, the significant correlations included SDNN (R=0.578, p=0.002), lnLF (R=0.493, p=0.012), and lnHF (R=0.432, p=0.031). Significant correlation between d’ and HRV parameters emerged only during the initial CCPT-II.
Conclusion
A significant correlation between PNS and IC was observed in the first session alone. The IC in the repeated CCPT-II needs to consider the broader neural network.
4.Differential Analysis of Heart Rate Variability in Repeated Continuous Performance Tests Among Healthy Young Men
Chung-Chih HSU ; Tien-Yu CHEN ; Jia-Yi LI ; Terry B. J. KUO ; Cheryl C. H. YANG
Psychiatry Investigation 2025;22(2):148-155
Objective:
Executive function correlates with the parasympathetic nervous system (PNS) based on static heart rate variability (HRV) measurements. Our study advances this understanding by employing dynamic assessments of the PNS to explore and quantify its relationship with inhibitory control (IC).
Methods:
We recruited 31 men aged 20–35 years. We monitored their electrocardiogram (ECG) signals during the administration of the Conners’ Continuous Performance Test-II (CCPT-II) on a weekly basis over 2 weeks. HRV analysis was performed on ECG-derived RR intervals using 5-minute windows, each overlapping for the next 4 minutes to establish 1-minute intervals. For each time window, the HRV metrics extracted were: mean RR intervals, standard deviation of NN intervals (SDNN), low-frequency power with logarithm (lnLF), and high-frequency power with logarithm (lnHF). Each value was correlated with detectability and compared to the corresponding baseline value at t0.
Results:
Compared with the baseline level, SDNN and lnLF showed marked decreases during CCPT-II. The mean values of HRV showed significant correlation with d’, including mean SDNN (R=0.474, p=0.012), mean lnLF (R=0.390, p=0.045), and mean lnHF (R=0.400, p=0.032). In the 14th time window, the significant correlations included SDNN (R=0.578, p=0.002), lnLF (R=0.493, p=0.012), and lnHF (R=0.432, p=0.031). Significant correlation between d’ and HRV parameters emerged only during the initial CCPT-II.
Conclusion
A significant correlation between PNS and IC was observed in the first session alone. The IC in the repeated CCPT-II needs to consider the broader neural network.
5.Differential Analysis of Heart Rate Variability in Repeated Continuous Performance Tests Among Healthy Young Men
Chung-Chih HSU ; Tien-Yu CHEN ; Jia-Yi LI ; Terry B. J. KUO ; Cheryl C. H. YANG
Psychiatry Investigation 2025;22(2):148-155
Objective:
Executive function correlates with the parasympathetic nervous system (PNS) based on static heart rate variability (HRV) measurements. Our study advances this understanding by employing dynamic assessments of the PNS to explore and quantify its relationship with inhibitory control (IC).
Methods:
We recruited 31 men aged 20–35 years. We monitored their electrocardiogram (ECG) signals during the administration of the Conners’ Continuous Performance Test-II (CCPT-II) on a weekly basis over 2 weeks. HRV analysis was performed on ECG-derived RR intervals using 5-minute windows, each overlapping for the next 4 minutes to establish 1-minute intervals. For each time window, the HRV metrics extracted were: mean RR intervals, standard deviation of NN intervals (SDNN), low-frequency power with logarithm (lnLF), and high-frequency power with logarithm (lnHF). Each value was correlated with detectability and compared to the corresponding baseline value at t0.
Results:
Compared with the baseline level, SDNN and lnLF showed marked decreases during CCPT-II. The mean values of HRV showed significant correlation with d’, including mean SDNN (R=0.474, p=0.012), mean lnLF (R=0.390, p=0.045), and mean lnHF (R=0.400, p=0.032). In the 14th time window, the significant correlations included SDNN (R=0.578, p=0.002), lnLF (R=0.493, p=0.012), and lnHF (R=0.432, p=0.031). Significant correlation between d’ and HRV parameters emerged only during the initial CCPT-II.
Conclusion
A significant correlation between PNS and IC was observed in the first session alone. The IC in the repeated CCPT-II needs to consider the broader neural network.
6.Differential Analysis of Heart Rate Variability in Repeated Continuous Performance Tests Among Healthy Young Men
Chung-Chih HSU ; Tien-Yu CHEN ; Jia-Yi LI ; Terry B. J. KUO ; Cheryl C. H. YANG
Psychiatry Investigation 2025;22(2):148-155
Objective:
Executive function correlates with the parasympathetic nervous system (PNS) based on static heart rate variability (HRV) measurements. Our study advances this understanding by employing dynamic assessments of the PNS to explore and quantify its relationship with inhibitory control (IC).
Methods:
We recruited 31 men aged 20–35 years. We monitored their electrocardiogram (ECG) signals during the administration of the Conners’ Continuous Performance Test-II (CCPT-II) on a weekly basis over 2 weeks. HRV analysis was performed on ECG-derived RR intervals using 5-minute windows, each overlapping for the next 4 minutes to establish 1-minute intervals. For each time window, the HRV metrics extracted were: mean RR intervals, standard deviation of NN intervals (SDNN), low-frequency power with logarithm (lnLF), and high-frequency power with logarithm (lnHF). Each value was correlated with detectability and compared to the corresponding baseline value at t0.
Results:
Compared with the baseline level, SDNN and lnLF showed marked decreases during CCPT-II. The mean values of HRV showed significant correlation with d’, including mean SDNN (R=0.474, p=0.012), mean lnLF (R=0.390, p=0.045), and mean lnHF (R=0.400, p=0.032). In the 14th time window, the significant correlations included SDNN (R=0.578, p=0.002), lnLF (R=0.493, p=0.012), and lnHF (R=0.432, p=0.031). Significant correlation between d’ and HRV parameters emerged only during the initial CCPT-II.
Conclusion
A significant correlation between PNS and IC was observed in the first session alone. The IC in the repeated CCPT-II needs to consider the broader neural network.
7.Long-Term Assessment of Speech and Swallowing Function in Laryngopharyngeal Cancer Patients After J-Flap Reconstruction
Yi-An LU ; Chung-Kan TSAO ; Li-Jen HSIN ; Hsiu-Feng CHUANG ; Tuan-Jen FANG
Clinical and Experimental Otorhinolaryngology 2024;17(4):346-354
Objectives:
. A novel J-shaped anterolateral thigh (ALT) flap reconstruction technique was developed to simultaneously restore swallowing and speech functions in patients following total laryngopharyngectomy. This study aimed to assess the outcomes and surgical complications in patients who underwent J-flap reconstruction over time.
Methods:
. Patients who underwent J-shaped ALT flap phonatory tube reconstruction were enrolled. Surgical morbidities and outcomes were evaluated every 3 months post-surgery for a period of 12 months or until death.
Results:
. Of the 36 patients, 13 underwent circumferential pharyngeal wall resection (circumferential defect [CD] group), and 23 underwent partial resection (partial defect [PD] group). After 12 months, 97% of the patients were able to resume oral intake without the need for a nasogastric tube, and 50% achieved fluent speech using the reconstructed phonatory tube. The CD group experienced a higher rate of delayed healing than the PD group (30.8% vs. 0%, p=0.012). Additionally, the PD group showed significantly higher percentages of individuals consuming solid food at both the 3- and 12-month intervals than the CD group (81.0% vs. 23.1% and 78.9% vs. 40%, respectively).
Conclusions
. This study investigated the progression of speech and swallowing functions over time after reconstruction of the voice tube with a J-flap. Using a J-shaped ALT flap phonatory tube effectively restored both speech and swallowing functions, providing long-term benefits, regardless of whether the defect was circumferential or partial.
8.Long-Term Assessment of Speech and Swallowing Function in Laryngopharyngeal Cancer Patients After J-Flap Reconstruction
Yi-An LU ; Chung-Kan TSAO ; Li-Jen HSIN ; Hsiu-Feng CHUANG ; Tuan-Jen FANG
Clinical and Experimental Otorhinolaryngology 2024;17(4):346-354
Objectives:
. A novel J-shaped anterolateral thigh (ALT) flap reconstruction technique was developed to simultaneously restore swallowing and speech functions in patients following total laryngopharyngectomy. This study aimed to assess the outcomes and surgical complications in patients who underwent J-flap reconstruction over time.
Methods:
. Patients who underwent J-shaped ALT flap phonatory tube reconstruction were enrolled. Surgical morbidities and outcomes were evaluated every 3 months post-surgery for a period of 12 months or until death.
Results:
. Of the 36 patients, 13 underwent circumferential pharyngeal wall resection (circumferential defect [CD] group), and 23 underwent partial resection (partial defect [PD] group). After 12 months, 97% of the patients were able to resume oral intake without the need for a nasogastric tube, and 50% achieved fluent speech using the reconstructed phonatory tube. The CD group experienced a higher rate of delayed healing than the PD group (30.8% vs. 0%, p=0.012). Additionally, the PD group showed significantly higher percentages of individuals consuming solid food at both the 3- and 12-month intervals than the CD group (81.0% vs. 23.1% and 78.9% vs. 40%, respectively).
Conclusions
. This study investigated the progression of speech and swallowing functions over time after reconstruction of the voice tube with a J-flap. Using a J-shaped ALT flap phonatory tube effectively restored both speech and swallowing functions, providing long-term benefits, regardless of whether the defect was circumferential or partial.
9.Correlation between Blood Pressure and Left Ventricular Function in Neonates: A Retrospective Observational Study
Na Mi LEE ; Na Li YU ; Dae Yong YI ; Sin Weon YUN ; Soo Ahn CHAE ; Hyun KANG
Neonatal Medicine 2024;31(3):65-72
Purpose:
Ejection fraction, measured as the fraction of blood ejected from the ventricle in each heartbeat using M-mode echocardiography, serves as a primary indicator of left ventricular systolic function. This study explores the correlation between blood pressure and left ventricular systolic function in neonates using M-mode echocardiography.
Methods:
Neonates who underwent echocardiography in the neonatal intensive care unit between January 2011 and December 2020 were retrospectively studied.
Results:
Our analyses showed a significant association between ejection fraction and systolic blood pressure, but not with diastolic or mean blood pressure—both of which are more sensitive to hypotension. Ejection fraction was also not significantly associated with heart rate, urine output, or inotropic support in this study, suggesting that factors influencing urine output may not directly relate to ejection fraction. Additionally, we found that higher systolic blood pressure was correlated with advanced gestational age, the absence of patent ductus arteriosus, and no need for fentanyl administration. Notably, lower gestational age and lack of mechanical ventilation were both associated with increased hourly urine output, suggesting that developmental maturity and respiratory stability may influence renal function.
Conclusion
Neonatal hypotension occurred secondary to decreased systolic cardiac function and peripheral vascular resistance. Neonatologists should carefully monitor the individual components of blood pressure and prescribe medications accordingly, considering that systolic blood pressure is correlated with ejection function.
10.Correlation between Blood Pressure and Left Ventricular Function in Neonates: A Retrospective Observational Study
Na Mi LEE ; Na Li YU ; Dae Yong YI ; Sin Weon YUN ; Soo Ahn CHAE ; Hyun KANG
Neonatal Medicine 2024;31(3):65-72
Purpose:
Ejection fraction, measured as the fraction of blood ejected from the ventricle in each heartbeat using M-mode echocardiography, serves as a primary indicator of left ventricular systolic function. This study explores the correlation between blood pressure and left ventricular systolic function in neonates using M-mode echocardiography.
Methods:
Neonates who underwent echocardiography in the neonatal intensive care unit between January 2011 and December 2020 were retrospectively studied.
Results:
Our analyses showed a significant association between ejection fraction and systolic blood pressure, but not with diastolic or mean blood pressure—both of which are more sensitive to hypotension. Ejection fraction was also not significantly associated with heart rate, urine output, or inotropic support in this study, suggesting that factors influencing urine output may not directly relate to ejection fraction. Additionally, we found that higher systolic blood pressure was correlated with advanced gestational age, the absence of patent ductus arteriosus, and no need for fentanyl administration. Notably, lower gestational age and lack of mechanical ventilation were both associated with increased hourly urine output, suggesting that developmental maturity and respiratory stability may influence renal function.
Conclusion
Neonatal hypotension occurred secondary to decreased systolic cardiac function and peripheral vascular resistance. Neonatologists should carefully monitor the individual components of blood pressure and prescribe medications accordingly, considering that systolic blood pressure is correlated with ejection function.

Result Analysis
Print
Save
E-mail