NOAA Technical Memorandum NWS SR-193, Section 10

Section 10 Table of Contents:

10. Gender


10. GENDER

Most lightning victims are male, as shown in Figures 37 and 38, and Tables 32 and 33. The results use the Storm Data categories in the digital database of male, female, both, or unknown. Cases classified as 'both' in the death category indicate that one male and one female were killed in the same event; these cases were split between male and female in the analyses. Similar definitions apply to injuries and casualties. For the entire US, 17.8% of the deaths do not have gender reported (Table 32). A larger number of injuries, 33.8%, do not specify gender, and 29.8% of casualties are unspecified. Since the unknown portions are large, and assuming no gender bias for unreported cases, results are shown with and without unknowns.

Including unknowns
Including unknown cases, deaths by gender is shown in Figure 37. Males are the most frequent lightning victims, but the unknown category is larger than the female group. Figure 37 is shown for deaths because the percentage of cases with no gender reported was much less for deaths than injuries. By region, when unknown cases are included, more than half of all deaths and injuries involved one or more males, except for injuries in the west coast, Midwest, and northeast. Another 5 to 18% involved one or more females. The largest number of unknown cases was 46.1% in the northeast for injuries (Table 32).

Figure 37: Gender of US lightning deaths from 1959 to 1994 including unknown cases.

Without unknowns
For the US without the unknown cases, Figure 38 shows that males are the most frequent lightning fatalities (84.1%). By region (Table 33), the male component ranged from 76.1 to 93.6% for deaths and injuries. The female range was 6.4 to 23.9% in the regions.

In summary, males are killed 4.6 times as often as females, and are 5.3 times as likely as females to be injured. There are twice as many injuries as deaths without a gender specified in the Storm Data digital dataset.

Males also comprised between 79 and 89% of the victims in the US (Duclos and Sanderson, 1990), Florida (Duclos et al., 1990; Holle et al., 1992; Paxton and Morales, 1997), and North Carolina (Langley et al., 1991). Similar ratios were found in Singapore (Pakiam et al., 1981), and England and Wales (Elsom, 1993).

Many of the same studies showed that males in their twenties are the most frequent victims of lightning. The digital record in Storm Data does not include the victim's age but its verbal narrative usually does. For this reason, an age analysis of the entire Storm Data record was not made for the present report.

Figure 38: Gender of US lightning deaths from 1959 to 1994 without unknown cases.

 

TABLE 32. Gender of lightning deaths in the US and geographical regions from 1959 to 1994 (%) including unknown cases
Region Male Female Unknown
West Coast
Deaths 78.4% 5.4 16.2
Injuries 40.5 12.7 46.8
Casualties 49.1 11.0 39.9
Northern Rockies
Deaths 86.9 6.6 6.6
Injuries 60.8 12.9 26.3
Casualties 67.1 11.4 21.6
Southern Rockies
Deaths 69.1 17.8 13.0
Injuries 66.7 13.6 19.7
Casualties 67.4 14.8 17.8
Northern Plains
Deaths 71.0 9.5 19.5
Injuries 58.0 10.7 31.3
Casualties 62.0 10.3 27.7
Southern Plains
Deaths 75.0 16.2 8.8
Injuries 65.4 13.9 20.6
Casualties 68.5 14.6 16.9
Midwest
Deaths 71.1 12.7 16.2
Injuries 50.0 10.6 39.4
Casualties 54.3 11.1 34.6
Northeast
Deaths 58.1 9.6 32.3
Injuries 43.0 11.0 46.1
Casualties 46.1 10.7 43.2
Southeast
Deaths 68.5 12.9 18.6
Injuries 56.9 11.6 31.5
Casualties 59.7 11.9 28.3
United States
Deaths 69.1 13.1 17.8
Injuries 54.5 11.7 33.8
Casualties 58.1 12.1 29.8
TABLE 33. Gender of lightning deaths in the US and geographical regions from 1959 to 1994 (%) without unknown cases.
Region Male Female
West Coast
Deaths 93.6% 6.4
Injuries 76.1 23.9
Casualties 81.6 18.4
Northern Rockies
Deaths 93.0 7.0
Injuries 82.5 17.5
Casualties 85.5 14.5
Southern Rockies
Deaths 79.5 20.5
Injuries 83.0 17.0
Casualties 82.0 18.0
Northern Plains
Deaths 88.2 11.8
Injuries 84.5 15.5
Casualties 85.8 14.2
Southern Plains
Deaths 82.3 17.7
Injuries 82.5 17.5
Casualties 82.4 17.6
Midwest
Deaths 84.8 15.2
Injuries 82.4 17.6
Casualties 83.0 17.0
Northeast
Deaths 85.8 14.2
Injuries 79.7 20.3
Casualties 81.2 18.8
Southeast
Deaths 84.2 15.8
Injuries 83.0 17.0
Casualties 83.3 16.6
United States
Deaths 84.1 15.9
Injuries 82.3 17.7
Casualties 82.8 17.2