Table 3.
Adjusted ORs for non-attendance derived from multivariable logistic regression stratified by delivery mode
| Prepandemic F2F | Pandemic F2F | Asynchronous | Synchronous (telephone) | Synchronous (audiovisual) | |
| OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Age | |||||
| (Decade) | 0.91 (0.89 to 0.93) | 0.89 (0.87 to 0.91) | 0.89 (0.85 to 0.93) | 0.81 (0.72 to 0.93) | 1.02 (0.95 to 1.09) |
| Sex | |||||
| Female | Reference | Reference | Reference | Reference | Reference |
| Male | 1.18 (1.10 to 1.26) | 1.12 (1.03 to 1.21) | 1.28 (1.12 to 1.46) | 1.28 (0.90 to 1.82) | 1.31 (1.06 to 1.63) |
| Ethnicity | |||||
| White | Reference | Reference | Reference | Reference | Reference |
| Asian | 1.07 (0.88 to 1.30) | 1.08 (0.79 to 1.47) | 1.60 (0.94 to 2.75) | 1.49 (0.31 to 7.11) | 2.40 (0.99 to 5.82) |
| Black | 1.33 (1.07 to 1.65) | 1.63 (1.14 to 2.33) | 1.09 (0.62 to 1.92) | 2.03 (0.31 to 13.37) | 4.24 (1.59 to 11.28) |
| Other | 1.48 (1.29 to 1.70) | 2.02 (1.63 to 2.50) | 2.61 (1.77 to 3.86) | 2.28 (0.61 to 8.49) | 1.48 (0.74 to 2.94) |
| Unknown | 1.71 (1.51 to 1.92) | 2.51 (2.05 to 3.05) | 2.92 (2.09 to 4.08) | 2.09 (0.64 to 6.89) | 3.39 (1.77 to 6.48) |
| SES (greater deprivation) | |||||
| Per decile decrease | 1.12 (1.10 to 1.13) | 1.09 (1.07 to 1.11) | 1.09 (1.05 to 1.12) | 1.05 (0.97 to 1.13) | 1.17 (1.11 to 1.23) |
| Broadband | |||||
| Index | 0.94 (0.87 to 1.02) | 1.00 (0.91 to 1.10) | 0.97 (0.93 to 1.14) | 0.81 (0.52 to 1.26) | 1.07 (0.85 to 1.36) |
| Interpreter | |||||
| No | Reference | Reference | Reference | Reference | Reference |
| Yes | 0.53 (0.35 to 0.81) | 1.07 (0.70 to 1.63) | 1.31 (0.66 to 2.60) | 3.31 (1.00 to 10.96) | 0.46 (0.01 to 3.39) |
| Diabetes mellitus | |||||
| No | Reference | Reference | Reference | Reference | Reference |
| Yes | 0.87 (0.74 to 1.03) | 0.56 (0.47 to 0.68) | 0.46 (0.36 to 0.59) | 1.41 (0.30 to 6.53) | * |
| Subspecialty | |||||
| Adnexal | Reference | Reference | * | Reference | Reference |
| Cataract | 1.51 (1.28 to 1.78) | 1.06 (0.91 to 1.23) | * | 1.31 (0.60 to 2.83) | 1.12 (0.67 to 1.87) |
| General | 1.37 (1.19 to 1.59) | 0.50 (0.43 to 0.58) | * | 1.42 (0.64 to 3.13) | 0.70 (0.55 to 0.90) |
| Glaucoma | 1.68 (1.41 to 1.99) | 1.00 (0.83 to 1.20) | Reference | * | * |
| MR | 2.08 (1.78 to 2.43) | 1.48 (1.28 to 1.70) | 2.55 (2.20 to 2.96) | * | * |
| Certified sight-impaired | |||||
| No | Reference | Reference | Reference | Reference | Reference |
| Yes | 0.39 (0.22 to 0.70) | 0.50 (0.28 to 0.89) | 0.66 (0.15 to 2.84) | * | * |
| Appointment time | |||||
| Early afternoon | Reference | Reference | Reference | Reference | Reference |
| Early morning | 1.09 (1.01 to 1.17) | 1.07 (0.98 to 1.17) | 1.16 (0.98 to 1.37) | 0.83 (0.51 to 1.35) | 0.96 (0.75 to 1.24) |
| Late morning | 0.71 (0.60 to 0.83) | 0.99 (0.85 to 1.15) | 1.01 (0.81 to 1.26) | 0.61 (0.27 to 1.39) | 0.79 (0.55 to 1.15) |
| Late afternoon | 0.63 (0.54 to 0.73) | 0.56 (0.45 to 0.70) | 1.20 (0.97 to 1.48) | 1.64 (1.07 to 2.50) | 0.64 (0.45 to 0.90) |
| Previous cancellation | |||||
| No | Reference | Reference | Reference | Reference | Reference |
| By the hospital | 1.29 (1.16 to 1.43) | 1.75 (1.58 to 1.94) | 2.05 (1.70 to 2.48) | 0.46 (0.25 to 0.84) | 2.22 (1.65 to 2.98) |
| By the patient | 1.83 (1.59 to 2.09) | 1.72 (1.45 to 2.03) | 1.48 (1.18 to 1.86) | 1.67 (0.81 to 3.46) | 1.65 (0.92 to 2.97) |
Effect estimates in bold were statistically significant (see online supplemental table 3 for more information)
*Either no cases or very few leading to unstable estimates.
F2F, face to face; MR, medical retina; SES, socioeconomic status.