Distribution of demographic and time characteristics, treatment and odds ratios (OR) for appointment status (N = 2,009) in 2019
| Variable | Attended % (N) | FTA % (N) | FTA OR (95% CI) | P-value |
|---|---|---|---|---|
| Overall (appointments) | 87.1% (2657) | 12.9% (392) | – | |
| Ethnicity | ||||
| NZ European | 92.8% (1275) | 7.2% (99) | 1.22 (0.81-1.84) | 0.34 |
| Māori/Pasifika | 87.3% (145) | 12.7% (21) | 0.66 (0.37-1.17) | 0.15 |
| Asian | 90.9% (80) | 9.1% (8) | 0.95 (0.42-2.13) | 0.90 |
| Others | 91.3% (348) | 8.7% (33) | 1 | |
| Gender | ||||
| Male | 92.0% (826) | 8.0% (72) | 1.00 (0.72-1.38) | 1.00 |
| Female | 92.0% (1022) | 8.0% (89) | 1 | |
| Age group | ||||
| <12 | 90.7% (546) | 9.3% (56) | 0.89 (0.11-6.99) | 0.91 |
| 13-18 | 93.3% (945) | 6.7% (68) | 1.26 (0.16-9.93) | 0.82 |
| 19-25 | 89.8% (229) | 10.2% (26) | 0.80 (0.01-6.45) | 0.84 |
| 26-49 | 92.7% (102) | 7.3% (8) | 1.16 (0.13-10.15) | 0.89 |
| 50-64 | 88.2% (15) | 11.8% (2) | 0.68 (0.06-8.50) | 0.76 |
| 65+ | 91.7% (11) | 8.3% (1) | 1 | |
| Suburb index | ||||
| <900 | 92.9% (13) | 7.1% (1) | 0.72 (0.09-5.85) | 0.76 |
| 901-950 | 93.6% (654) | 6.4% (45) | 0.81 (0.47-1.40) | 0.46 |
| 951-1000 | 91.2% (385) | 8.8% (37) | 0.58 (0.33-1.02) | 0.06 |
| 1001 + | 88.3% (439) | 11.7% (58) | 0.42 (0.25-0.72) | 0.00 |
| Others | 94.7% (357) | 5.3% (20) | 1 | |
| Notification | ||||
| Yes | 87.3% (2477) | 12.7 (358) | 1.26 (0.86-1.86) | 0.23 |
| No | 84.5% (180) | 15.5% (33) | 1 | |
| SMS | 88.1% (2001) | 11.9% (271) | 0.74 (0.50-1.09) | 0.03 |
| Letter | 82.8% (82) | 17.2% (17) | 1.13 (0.60-2.14) | 0.71 |
| None | 84.5% (180) | 15.5% (33) | 1 | |
| Time of day | ||||
| Morning | 85.8% (386) | 14.2% (64) | 0.60 (0.40-0.91) | 0.03 |
| After noon | 88.9% (442) | 11.1% (55) | 1 | |
| Day | ||||
| Monday | 83.2% (663) | 16.8% (97) | 0.98 (0.71- 1.34) | 0.49 |
| Tuesday | 87.7% (455) | 12.3% (64) | 0.94 (0.662- 1.33) | 0.73 |
| Wednesday | 87.6% (572) | 12.4% (96) | 1.12 (0.815- 1.54) | 0.48 |
| Thursday | 88.7% (425) | 11.3% (54) | 0.85 (0.59- 1.23) | 0.38 |
| Friday | 87.0% (541) | 13.0% (81) | 1 | |
| Treatment | ||||
| Consultation | 81.8% (139) | 18.2% 31 | 0.96 (0.39-2.38) | 0.92 |
| Records | 86.7% (78) | 13.3% (12) | 0.66 (0.24-1.83) | 0.43 |
| Bonding | 93.8% (196) | 6.2% (13) | 0.28 (0.11-0.77) | 0.01 |
| Review/adjustment | 87.4% (1995) | 12.6% (288) | 0.62 (0.27-1.42) | 0.26 |
| Debonding | 85.7% (6) | 14.3% (1) | 0.71 (0.07-6.92) | 0.77 |
| Retainer/retention | 84.2% (213) | 15.8% (40) | 0.81 (0.33-1.96) | 0.63 |
| Others | 81.1% (30) | 18.9% (7) | 1 | |
Comparison of attendance between 2013 and 2019
| Variable | B | Std. Error | Exp (B) | 95% CI | P-value |
|---|---|---|---|---|---|
| Ethnicity | |||||
| NZ European | -0.40 | 0.10 | 0.67 | 0.557-0.807 | 0.00 |
| Mā ori | -0.15 | 0.27 | 1.60 | 0.68-1.98 | 0.59 |
| Asian | 0.54 | 0.41 | 1.71 | 0.77-3.79 | 0.19 |
| Others | -0.33 | 0.37 | 0.72 | 0.35-1.48 | 0.37 |
| Gender | |||||
| Male | -0.22 | 0.12 | 0.81 | 0.64-1.02 | 0.07 |
| Female | -0.32 | 0.11 | 0.73 | 0.59-0.91 | 0.01 |
| Age group | |||||
| <12 | -0.11 | 0.24 | 0.89 | 0.56-1.43 | 0.64 |
| 13-18 | -0.49 | 0.10 | 0.62 | 0.50-0.75 | 0.00 |
| 19-25 | 0.07 | 0.21 | 1.01 | 0.71-1.61 | 0.76 |
| 26-49 | 0.29 | 0.46 | 1.33 | 0.54-3.29 | 0.53 |
| 50-64 | -0.19 | 0.82 | 0.83 | 0.17-4.13 | 0.82 |
| 65+ | -0.34 | 1.53 | 0.71 | 0.04-14.35 | 0.83 |
| Suburb index | |||||
| <900 | -1.64 | 0.66 | 0.19 | 0.05-0.70 | 0.01 |
| 901-950 | -0.21 | 0.15 | 0.81 | 0.60-1.10 | 0.17 |
| 951-1000 | -0.30 | 0.17 | 0.74 | 0.53-1.04 | 0.08 |
| 1001+ | -0.15 | 0.16 | 0.87 | 0.63-1.19 | 0.37 |
| Others | -0.57 | 0.21 | 1.78 | 1.18-2.67 | 0.01 |
| Time of day | |||||
| Morning | -0.40 | 0.11 | 0.67 | 0.54-0.83 | 0.00 |
| Afternoon | -0.09 | 0.13 | 0.92 | 0.71-1.19 | 0.50 |
| Day | |||||
| Monday | -0.52 | 0.17 | 0.60 | 0.43-0.84 | 0.00 |
| Tuesday | -0.23 | 0.21 | 0.79 | 0.53-1.19 | 0.26 |
| Wednesday | 0.01 | 0.17 | 1.01 | 0.73-1.40 | 0.97 |
| Thursday | -0.50 | 0.20 | 0.61 | 0.41-0.89 | 0.01 |
| Friday | -0.16 | 0.20 | 0.85 | 0.58-1.26 | 0.43 |
| Treatment | |||||
| Consultation | 0.67 | 0.27 | 1.01 | 0.63-1.83 | 0.81 |
| Records | -0.22 | 0.58 | 0.80 | 0.26-2.49 | 0.70 |
| Bonding | -1.62 | 0.87 | 0.20 | 0.04-1.09 | 0.06 |
| Review/adjustment | -0.43 | 0.10 | 0.65 | 0.54-0.79 | 0.00 |
| Debonding | 0.66 | 1.18 | 1.93 | 0.19-19.39 | 0.58 |
| Retainer/retention | 0.36 | 0.23 | 1.43 | 0.91-2.25 | 0.12 |
| Others | 0.42 | 0.61 | 1.52 | 0.46-4.89 | 0.49 |
| Month | |||||
| August | -0.62 | 0.16 | 0.54 | 0.40-0.73 | 0.00 |
| September | -0.26 | 0.15 | 0.77 | 0.58-1.03 | 0.08 |
| October | -0.05 | 0.13 | 0.95 | 0.74-1.23 | 0.71 |
Demographic characteristics of the patients (%, N) in 2013 and 2019
| 2013 | 2019 | |||||
|---|---|---|---|---|---|---|
| Male | Female | Total | Male | Female | Total | |
| New Zealand | 35.8% (681) | 47.0% (894) | 82.8% (1575) | 31.0% (622) | 37.4% (752) | 68.4% (1374) |
| Māori/Pasifika | 3.5% (66) | 3.7% (70) | 7.2% (136) | 3.3% (67) | 4.9% (99) | 8.3% (166) |
| Asian | 1.7% (33) | 2.0% (38) | 3.7% (71) | 2.2% (44) | 2.2% (44) | 4.4% (88) |
| Others (Latino, Middle Eastern, or unstated) | 2.6% (49) | 3.7% (70) | 6.3% (119) | 8.2% (165) | 10.8% (216) | 19.0% (381) |
| Total | 43.6% (829) | 56.4% (1072) | 100% (1901) | 44.7% (898) | 55.3% (1111) | 100% (2009) |
Age categories of the patients (%, N) in 2013 and 2019
| 2013 | 2019 | |||||
|---|---|---|---|---|---|---|
| Age(Years) | Male | Female | Total | Male | Female | Total |
| < 12 | 8.3% (157) | 13.2% (250) | 21.4% (407) | 13.8% (277) | 16.2% (325) | 30.0% (602) |
| 13-18 | 29.7% (565) | 33.1% (629) | 62.8% (1194) | 23.2% (466) | 27.2% (547) | 50.4% (1013) |
| 19-25 | 4.1% (78) | 6.8% (129) | 10.9% (207) | 5.4% (108) | 7.3% (147) | 12.7% (255) |
| 26-49 | 0.9% (18) | 2.5% (48) | 3.5% (66) | 1.8% (37) | 3.6% (73) | 5.5% (110) |
| 50-64 | 0.4% (7) | 0.7% (14) | 1.1% (21) | 0.3% (6) | 0.5% (11) | 0.8% (17) |
| 65+ | 0.2% (4) | 0.1% (2) | 0.3% (6) | 0.2% (4) | 0.4% (8) | 0.6% (12) |
| Total | 43.6% (829) | 56.4% (1072) | 100% (1901) | 44.7% (898) | 55.3% (1111) | 100% (2009) |
Distribution of demographic and time characteristics, treatment and odds ratios (OR) for appointment status (N = 1,901) in 2013
| Variable | Attended %(N) | FTA %(N) | FTA OR (95% CI) | P-value |
|---|---|---|---|---|
| Overall | 83.9% (1594) | 16.1% (306) | – | |
| Ethnicity | ||||
| NZ European | 83.4% (1314) | 16.5% (260) | 0.90 (0.54-1.51) | 0.70 |
| Māori/Pasifika | 86.0% (117) | 14.0% (19) | 1.10 (0.55-2.20) | 0.79 |
| Asian | 87.3% (62) | 12.7% (9) | 1.23 (0.52-2.90) | 0.64 |
| Others | 84.9% (101) | 15.1% (18) | 1 | |
| Gender | ||||
| Male | 82.5% (684) | 17.5% (145) | 0.83 (0.65-1.07) | 0.15 |
| Female | 85.0% (911) | 15.0% (161) | 1 | |
| Age group | ||||
| <12 | 86.0% (350) | 14.0% (57) | 1.23 (0.14-10.70) | 0.85 |
| 13-18 | 83.2% (993) | 16.8% (201) | 0.99 (0.12-8.50) | 0.99 |
| 19-25 | 81.6% (169) | 18.4% (38) | 0.89 (0.10-7.84) | 0.92 |
| 26-49 | 89.4% (59) | 10.6% (7) | 1.69 (0.17-16.57) | 0.65 |
| 50-64 | 85.7% (18) | 14.3% (3) | 0.89 (0.10-14.20) | 0.20 |
| 65+ | 83.3.% (5) | 16.7% (1) | 1 | |
| Suburb index | ||||
| <900 | 72.2% (13) | 27.8% (5) | 0.62 (0.21-1.83) | 0.39 |
| 901-950 | 86.2% (676) | 13.8% (108) | 1.50 (1.05-2.15) | 0.03 |
| 951-1000 | 82.2% (341) | 17.8% (74) | 1.11 (0.75-1.63) | 0.61 |
| 1001+ | 84.0% (336) | 16.0% (64) | 1.26 (0.85-1.88) | 0.25 |
| Others | 80.6% (229) | 19.4% (55) | 1 | |
| Time of day | ||||
| Morning | 84.0% (561) | 16.0% (107) | 0.99 (0.77-1.28) | 0.45 |
| Afternoon | 87.9% (1034) | 12.1% (199) | 1 | |
| Day | ||||
| Monday | 80.1% (278) | 19.9% (69) | 0.68 (0.45-1.03) | 0.07 |
| Tuesday | 85.0% (271) | 15.0% (48) | 0.95 (0.61-1.48) | 0.83 |
| Wednesday | 85.7% (444) | 14.3% (74) | 1.01 (0.68-1.51) | 0.96 |
| Thursday | 82.7% (335) | 17.3% (70) | 0.81 (0.54-1.21) | 0.30 |
| Friday | 85.6% (267) | 14.4% (45) | 1 | |
| Treatment | ||||
| Consultation | 82.6% (161) | 17.4% (34) | 0.73 (0.29-1.86) | 0.51 |
| Records | 83.9% (26) | 16.1% (5) | 0.80 (0.22-2.90) | 0.73 |
| Bonding | 75.0% (6) | 25.0% (2) | 0.46 (0.08-2.84) | 0.40 |
| Review/adjustment | 81.9% (929) | 18.1% (205) | 0.70 (0.29-1.67) | 0.42 |
| Debonding | 92.1% (58) | 7.9% (5) | 1.79 (0.51-6.26) | 0.37 |
| Retainer/retention | 88.4% (374) | 11.6% (49) | 1.17 (0.47-2.92) | 0.73 |
| Others | 86.7% (39) | 13.3% (6) | 1 | |
| Month | ||||
| August | 80.3% (392) | 19.7% (96) | 0.70 (0.52-0.95) | 0.02 |
| September | 84.9% (585) | 15.1% (104) | 0.97 (0.72-1.29) | 0.81 |
| October | 85.4% (618) | 14.6% (106) | 1 | |
Comparison of non-attendance between 2013 and 2019
| Variable | B | Std. Error | Exp (B) | 95% CI | P-value |
|---|---|---|---|---|---|
| Ethnicity | |||||
| NZ European | 0.40 | 0.10 | 1.49 | 1.24-1.80 | 0.00 |
| Māori | -0.15 | 0.27 | 0.86 | 0.51-1.48 | 0.59 |
| Asian | -0.54 | 0.41 | 0.59 | 0.26-1.30 | 0.19 |
| Others | 0.33 | 0.37 | 1.39 | 0.67-2.78 | 0.37 |
| Gender | |||||
| Male | 0.22 | 0.12 | 1.24 | 0.98-1.57 | 0.07 |
| Female | 0.32 | 0.11 | 1.37 | 1.10-1.72 | 0.01 |
| Age group | |||||
| <12 | 0.11 | 0.24 | 1.12 | 0.70-1.79 | 0.64 |
| 13-18 | 0.49 | 0.10 | 1.63 | 1.33-2.00 | 0.00 |
| 19-25 | -0.07 | 0.21 | 0.94 | 0.62-1.41 | 0.76 |
| 26-49 | -0.29 | 0.46 | 0.75 | 0.30-1.85 | 0.53 |
| 50-64 | 0.19 | 0.82 | 1.21 | 0.24-6.04 | 0.82 |
| 65+ | -18.74 | 0.00 | — | — | — |
| Suburb index | |||||
| <900 | 1.64 | 0.66 | 5.17 | 1.43-18.69 | 0.01 |
| 901-950 | 0.21 | 0.15 | 1.23 | 0.91-1.66 | 0.17 |
| 951-1000 | 0.30 | 0.17 | 1.35 | 0.97-1.90 | 0.08 |
| 1001+ | 0.15 | 0.16 | 1.16 | 0.84-1.59 | 0.37 |
| Others | 0.57 | 0.21 | 1.78 | 1.18-2.67 | 0.01 |
| Time of day | |||||
| Morning | 0.40 | 0.11 | 1.50 | 1.21-1.84 | 0.00 |
| Afternoon | 0.09 | 0.13 | 1.09 | 0.84-1.42 | 0.50 |
| Day | |||||
| Monday | 0.52 | 0.17 | 1.68 | 1.20-2.35 | 0.00 |
| Tuesday | 0.23 | 0.21 | 1.26 | 0.84-1.89 | 0.26 |
| Wednesday | -0.01 | 0.17 | 0.99 | 0.72-1.38 | 0.97 |
| Thursday | 0.50 | 0.20 | 1.65 | 1.12-2.42 | 0.01 |
| Friday | 0.16 | 0.20 | 1.17 | 0.79-1.73 | 0.43 |
| Treatment | |||||
| Consultation | -0.67 | 0.27 | 0.94 | 0.55-1.60 | 0.81 |
| Records | 0.22 | 0.58 | 1.25 | 0.40-3.88 | 0.70 |
| Bonding | 1.62 | 0.87 | 5.03 | 0.92-27.40 | 0.06 |
| Review/adjustment | 0.43 | 0.10 | 1.54 | 1.27-1.87 | 0.00 |
| Debonding | -0.66 | 1.18 | 0.52 | 0.05-5.19 | 0.58 |
| Retainer/retention | -0.36 | 0.23 | 0.70 | 0.45-1.09 | 0.12 |
| Others | -0.42 | 0.61 | 0.66 | 0.20-2.17 | 0.49 |
| Month | |||||
| August | 0.62 | 0.16 | 1.85 | 1.36-2.51 | 0.00 |
| September | 0.26 | 0.15 | 1.29 | 0.97-1.73 | 0.08 |
| October | 0.05 | 0.13 | 1.05 | 0.81-1.36 | 0.71 |