Table 3.

Association by age and sex between daily maximum temperature and homicide, with odds ratios reported per 1 °C increase in temperature. Numbers in parentheses are 95% confidence intervals

	Deaths included		Odds ratio
	Definitea	Totalb	Definitea	Totalb
Male
Lag 0c	54,278	188,737	1.016 (1.013, 1.018)	1.012 (1.011, 1.014)
Lag 1d	54,266	188,713	1.012 (1.009, 1.014)	1.009 (1.007, 1.010)
Lag 0-1e	54,090	188,141	1.018 (1.015, 1.021)	1.014 (1.012, 1.016)
Female
Lag 0c	8805	34,053	1.013 (1.006, 1.019)	1.010 (1.007, 1.014)
Lag 1d	8809	34,081	1.013 (1.007, 1.020)	1.008 (1.004, 1.011)
Lag 0-1e	8781	33,953	1.017 (1.010, 1.025)	1.012 (1.008, 1.016)
0–17 years
Lag 0c	4111	14,316	1.014 (1.005, 1.024)	1.011 (1.006, 1.016)
Lag 1d	4115	14,328	1.013 (1.004, 1.022)	1.010 (1.005, 1.015)
Lag 0-1e	4096	14,275	1.018 (1.008, 1.029)	1.014 (1.008, 1.020)
18–44 years
Lag 0c	48,201	162,578	1.015 (1.012, 1.018)	1.013 (1.011, 1.014)
Lag 1d	48,200	162,560	1.011 (1.008, 1.013)	1.008 (1.006, 1.010)
Lag 0-1e	48,053	162,072	1.017 (1.014, 1.020)	1.014 (1.012, 1.015)
45+ years
Lag 0c	10,425	44,803	1.016 (1.010, 1.022)	1.011 (1.008, 1.014)
Lag 1d	10,415	44,811	1.016 (1.010, 1.022)	1.010 (1.007, 1.013)
Lag 0-1e	10,378	44,657	1.022 (1.015, 1.029)	1.014 (1.010, 1.017)

^aDefinite homicides, ICD-10: X85-Y09

^bIncludes definite homicides and probable homicides (ICD-10: W25-W26, W32-W34, W50, Y22-Y24, Y28-Y29)

^cSame day’s temperature

^dPrevious day’s temperature

^eMoving average of same and previous day’s temperature