新潟県における救急搬送時間の構造的特徴(Structural characteristics of ambulance transport time in Niigata Prefecture)

Q: What does this research mean for the field?

The structural components of ambulance transport time vary significantly by age group, with transport time being the primary driver of delays in children and on-scene time being the primary driver in the elderly. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Shunsuke Nukaga

doi:10.1002/jja2.13176

September 1, 2026Nihon Kyukyu Igakukai Zasshi Journal of Japanese Association for Acute MedicineOpen Access

新潟県における救急搬送時間の構造的特徴(Structural characteristics of ambulance transport time in Niigata Prefecture)

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Key Points

To evaluate the time structure of emergency medical transports and identify how transport intervals vary across different age groups.
Conducted an observational study of 183,607 emergency ambulance transports in Niigata Prefecture across 2014 and 2019, excluding cases with missing age data or non-transports.
Defined total transport time (call to hospital), on-scene time, and transit time, calculating the respective proportions of on-scene and transit time relative to total transport duration.
Performed multivariable logistic regression for prolonged transit time (≥30 minutes) and prolonged total transport time (≥60 minutes), adjusting for year, age, transport reason, severity, and secondary medical district.
Prolonged transit time occurred in 11.4% of transports and prolonged total transport time occurred in 13.4% of transports.
Neonates exhibited significantly higher odds than adults for both prolonged transit time (adjusted OR 1.46) and prolonged total transport time (adjusted OR 1.52), whereas elderly individuals had lower odds (adjusted OR 0.78 and 0.81, respectively).
Transit time ratio exceeded on-scene time ratio in neonates and young children—strongly associated with inter-facility transfers (adjusted OR 3.56)—whereas on-scene time ratio dominated from school age onward.

Implication

Observational study reveals age-specific bottlenecks in ambulance transport times, highlighting prolonged transit in neonates and extended on-scene delays in elderly patients.

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Cite This Study

Shunsuke Nukaga (2026) studied this question.

synapsesocial.com/papers/6a9935a0636c6408cfa7e130 https://doi.org/10.1002/jja2.13176

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新潟県における救急搬送時間の構造的特徴(Structural characteristics of ambulance transport time in Niigata Prefecture)

Key Points

Implication

Abstract

Discussion

Cite This Study

新潟県における救急搬送時間の構造的特徴(Structural characteristics of ambulance transport time in Niigata Prefecture)

Key Points

Implication

Abstract

Discussion

Cite This Study

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