Table 2.

Volume of unscheduled registrations in the control and study periods (July to December) and the 6 mo before the control and study periods (January to June): Scheduled visits have already been removed.

PERIOD20162017DIFFERENCE, N% CHANGE
Control and study
July  3102  3446  +344+11.09
August  3067  3395  +328+10.69
September  2879  3155  +276  +9.59
October  2950  3294  +344+11.66
November  2928  3220  +292  +9.97
December  3033  3330  +297  +9.79
Total17 95919 840+1881+10.47
Monthly average  2993  3307  +314+ 10.47*
6 mo before control and study
January  3093  2893  -200  -6.47
February  2888  2717  -171  -5.92
March  3072  2896  -176  -5.73
April  2913  2947  +34  + 1.17
May  3155  3234  +79  +2.50
June  3000  3086  +86  +2.87
Total18 12117 773-348  -1.92
Monthly average  3020  2962  -58  -1.92†

  • ↵*Independent means t test comparing 2016 and 2017 July to December monthly averages was statistically significant (P < .01).

  • ↵†The difference between the 2016 and 2017 January to June monthly averages was not statistically significant.