TABLE 2.
Risk factor | Hazard ratio for additional recurrence (95% confidence interval) |
---|---|
Age, years | |
18–30 | Reference |
≥31 | 0.91 (0.19–4.32) |
Sex | |
Male | Reference |
Female | 0.33 (0.09–1.29) |
Number of previous episodes | |
2 | Reference |
≥3 | 3.93 (1.02–15.3) |
Triad of signs and symptoms a | |
No | Reference |
Yes | 1.68 (0.49–5.81) |
CSF leukocyte count, cells/μL | |
0–500 | Reference |
≥501 | 0.82 (0.18–3.89) |
Suppressive valacyclovir | |
No | Reference |
Yes | 1.06 (0.27–4.14) |
Note: Quantitative data are median (interquartile range) and categorical data are n/N (%).
Abbreviation: CSF, cerebrospinal fluid.
Triad of headache, neck stiffness, and photophobia and/or hyperacusis.