Chart showing completed toll-free calls to poison centers by year and month

1-800-222-1222 Toll-Free Number Usage Statistics, 2005 – 2008

Figure 1 presents the number of completed toll-free calls as a function of call year and month.

[Description of Figure 1]

Figure 1. Number of Completed Toll-Free Calls as a Function of Year and Month of Call

As shown in Figure 1 and Table 1, the number of completed toll-free calls has consistently increased from 2005 to 2008 when analyzed within each month. The lowest number of completed calls were recorded in February 2005 (N = 193,946), while the highest number of completed calls were recorded in July 2008 (N = 350,204). Completed calls from September – December 2008 are not presented due to the unavailability of these data at the time of this analysis.

Table 1
Number of Completed Toll-Free Calls as a Function of Year and Month of Call

There was a significant effect of year on the mean number of monthly completed toll-free calls, F(3, 40) = 69.14, p < .01. More specifically, the average number of monthly completed calls in 2008 (M = 325,734) was significantly higher than those recorded in 2005 (M = 227,662), 2006 (M = 258,890), and 2007 (M = 296,354) according to post hoc comparisons (Table 2).

Table 2
Mean Number of Monthly Completed Toll-free Calls as a Function of Year

Note. Higher means indicate greater completed call volume. Means sharing different subscripts are significantly different at the .05 alpha level. All pairwise comparisons were not conducted on these data. Only comparisons of 2008 data to all other years were of interest in the present analysis.

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