Figure 3.

Percentage of patients experiencing CMV viremia and days to first episode by serology group. (A) Percentage of patients with either 0, 1, or >1 episodes of CMV viremia within each serology group are indicated by white, gray, and black bars, respectively. A maximum of 2 episodes of viremia per patient were seen in the R+/D+ group, and a maximum of 3 episodes of viremia per patient were seen in the R+/D− group. The number of episodes by serology type was statistically significantly different between all 3 groups (P = .002, Fisher’s exact test). Median time in days to reactivation is indicated below the bar graph. There was a trend toward shorter time to reactivation in the R−/D+ group (P = .11) compared with the other 2 serology groups. Range of days to reactivation was 38 to 74 days in the R−/D+ group, −4 to 53 days in the R+/D+ group, and −11 to 46 days in the R+/D− groups. (B) Sixty-six patients who experienced 1 or more episodes of CMV viremia were grouped by single versus multiple episode status (regardless of serology group). Horizontal bars within the scatter plot indicate the median number of days to first detectable CMV PCR, which was significantly different between the 2 groups (P =.008). The median day to first episode of viremia was 17 (range: −4 to 74) in the single episode of viremia group (n = 53), versus 10 (range: −11 to 31) in the multiple episode group (n = 13). Asterisk (*) indicates statistically significant comparisons.