Table 3.

Risk factors for injury in patients who fainted

Population	Size, n	Injured, n	Mean risk (CI)	Relative risk (CI)	P-value
Total	186	56	0.30 (0.24–0.37)
Sex
Male	55	15	0.27 (0.15–0.45)
Female	131	41	0.31 (0.22–0.42)	0.87 (0.53–1.44)	0.59
Age
<Median	110	28	0.25 (0.17–0.37)
>Median	76	28	0.37 (0.24–0.53)	0.69 (0.45–1.10)	0.10
Population type
Bifascicular block	21	9	0.43 (0.24–0.63)
Vasovagal	165	47	0.28 (0.22–0.36)	0.66 (0.38–1.15)	0.15
Prior year, n
<Median	50	15	0.30 (0.17–0.50)
>Median	136	41	0.30 (0.22–0.41)	0.99 (0.61–1.63)	0.98
Prodrome
Absent	58	15	0.52 (0.29–0.85)
Present	31	11	0.24 (0.12–0.43)	0.73 (0.38–1.39)	0.34
Drug therapy
Placebo	95	24	0.25 (0.16–0.38)
Active	70	23	0.33 (0.21–0.49)	0.77 (0.48–1.24)	0.28

The mean age in the total study population was 45 and the median number of faints in the year before randomization was 3. Prodromal symptoms were recorded in POST 3 and 4. The bifascicular heart block population was in POST 3 and the vasovagal population was in POST 2 and 4.

CI, confidence interval.