Prospective study of recovery from copperhead snake envenomation: an observational study

BMC Emergency Medicine

Table 12 Impairment at daily activities outside of work: Overall Study Results

	Day 3		Day 7		Day 14		Day 21		Day 28
	Median	Range	Median	Range	Median	Range	Median	Range	Median	Range
Percent Daily Activities Impairment	80	0, 100	60	0, 100	10	0, 80	0	0, 40	0	0, 30

Percent impairment of regular daily activities other than work is calculated by taking self-reported impairment on item 6 of the Work Productivity and Ability Impairment: Special Health Problem instrument. This is an 11-item ordinal scale, ranging from 0 “(Snakebite had no effect on my daily activities”) to 10 (“Snakebite completely prevented me from doing my daily activities”), multiplied by 10. Higher scores indicate more impairment. The day of envenomation is Day 0.

ISSN: 1471-227X