Ambient temperature and intentional homicide: A multi-city case-crossover study in the US.

摘要: Abstract Background There has been an increasing interest in the association between ambient temperature and violence crime, context of global warming. We aimed to evaluate daily intentional homicide—a proxy for overall inter-personal violence. Methods collected weather crime data from 9 large US cities (Chicago, Detroit, Fort Worth, Kansas City, Los Angeles, Louisville, New York, Tucson Virginia Beach) 2007 2017. A time-stratified case-crossover design was used. The associations were quantified by conditional logistic regression with distributed lag models, adjusting relative humidity, precipitation effects public holidays. City-specific odds ratios (OR) used calculate attributable fractions each city. Results Based on 19,523 homicide cases, we found a linear temperature-homicide association. Every 5 °C increase mean associated 9.5% [95% confidence interval (CI): 4.3–15.0%] 8.8% (95% CI: 1.5–16.6%) over 0–7 days Chicago respectively. not statistically significant other seven seemed be stronger cases that happened during hot season, at night (18:00–06:00) street. During study period, 8.7% (95%CI: 4.3–12.7%) 7.1% 1.4–12.0%) could attributed temperatures above city-specific median temperatures, corresponding 488 316 excess Conclusions Our suggests interpersonal might some cities. also provide insights into mechanisms targeted prevention strategies heat-related