Table 2. Time of visit, level of provider and weather’s association with fraction of missed appointments per day.
a = Linear regression analysis; b = ANOVA (analysis of variance
| Observation (n) | Mean Fraction of Missed Appointments | Standard Error | Linear Regression or ANOVA | p-Value | |
| Morning Appointment | 252 (33.2%) | 0.28 | 0.02 | t = 0.43a | 0.66 |
| Afternoon Appointment | 508 (66.8%) | 0.29 | 0.01 | ||
| Physician | 471 (62.0%) | 0.29 | 0.01 | t = -0.92a | 0.36 |
| Midlevel Provider | 289 (38.0%) | 0.27 | 0.02 | ||
| Fog | 38 | 0.21 | 0.02 | F = 0.78b | 0.51 |
| Rain | 108 | 0.20 | 0.01 | ||
| Snow | 44 | 0.20 | 0.02 | ||
| Thunderstorm | 29 | 0.22 | 0.03 | ||
| Lead Days | 760 | Not applicable | 0.04 | t = 2.24 | 0.03 |