Background
Methods
COHIP-SF-19 questionnaire
Study population
Data collection
Data analysis: psychometric testing of the scale
Results
Description of the population
Whole sample | Answered < 75% per domain | Answered > 75% per domain (n = 557) | pb | |||
---|---|---|---|---|---|---|
Partially answered | completely answered | pa | ||||
n = 693 | n = 136 | n = 263 | n = 294 | |||
Gender | 0.9 | 0.44 | ||||
Male | 321 (46.3%) | 59 (43.4%) | 123 (46.8%) | 139 (47.3%) | ||
Female | 372 (53.7%) | 77 (56.6%) | 140 (53.2%) | 155 (52.7%) | ||
Region | 0.06 | 0.09 | ||||
South | 459 (66.2%) | 84 (61.8%) | 167 (63.5%) | 208 (70.8%) | ||
North | 137 (19.8%) | 25 (18.4%) | 54 (20.5%) | 58 (19.7%) | ||
Islands | 97 (14%) | 27 (19.8%) | 42 (16%) | 28 (9.5%) | ||
Ethnicity | 0.91 | 0.27 | ||||
Oceanian | 210 (30.8%) | 49 (36.3%) | 78 (30.2%) | 83 (28.6%) | ||
European | 49 (7.2%) | 7 (5.2%) | 18 (7%) | 24 (8.3%) | ||
Multiracial | 309 (45.2%) | 54 (40%) | 121 (46.9%) | 134 (46.2%) | ||
Others | 115 (16.8%) | 25 (18.5%) | 41 (15.9%) | 49 (16.9%) | ||
Place of living | 0.29 | 0.15 | ||||
Tribe/Squat | 261 (37.9%) | 58 (43.3%) | 102 (38.9%) | 101 (34.59%) | ||
Town/village/property | 427 (62.1%) | 76 (56.7%) | 160 (61.1%) | 191 (65.4%) | ||
Type of school | 0.8 | 0.42 | ||||
Private | 166 (23.95%) | 29 (21.3%) | 66 (25.1%) | 71 (24.15%) | ||
Public | 527 (76.05% | 107 (78.7%) | 197 (74.9%) | 223 (75.85% | ||
Health insurance | 0.5 | 0.71 | ||||
Basic insurance only | 133 (19.9%) | 29 (22.3%) | 46 (17.8%) | 58 (20.7%) | ||
State aid supplemental | 160 (23.9%) | 29 (22.3%) | 68 (26.2%) | 63 (22.5%) | ||
Private supplemental | 376 (56.2%) | 72 (55.4%) | 145 (56%) | 159 (56.8%) |
Oral status | n (%) | [95% CI] |
---|---|---|
Dental caries | ||
% with DMFT = 0 | 334 (60%) | [56.4; 64.2] |
% with DMFT > 0 | 223 (40%) | [35.8; 43.6] |
Gingival status | ||
No gingivitis | 252 (45.4%) | [41.2; 49.7] |
Gingivitis (≥ 1 sextant) | 303(54.6%) | [50.3; 58.8] |
Oral infectious process | ||
No infectious process | 511 (92.1%) | [90; 94.2] |
Infectious process (≥ 1) | 44 (7.9%) | [5.8; 10] |
Number of PFU | ||
< 6 | 76 (13.6%) | [10.9; 16.5] |
≥ 6 | 481 (86.4%) | [83.5; 89.1] |
Tooth-brushing | ||
No/occasional brushing | 46 (8.3%) | [6.1; 10.6] |
Once a day | 208 (37.5%) | [33.2; 41.6] |
Twice a day | 301 (54.2%) | [50.1; 58.7] |
OHRQOL of the New Caledonian children
Since school-year started | Almost always | Quite often | Sometimes | Almost never | Never |
---|---|---|---|---|---|
n (%) | n (%) | n (%) | n (%) | n (%) | |
Domain 1: Oral health | |||||
Q1: Had pain in your teeth/toothache (n = 550) | 5 (0.9%) | 28 (5.1%) | 178 (32.4%) | 129 (23.4%) | 210 (38.2%) |
Q2: Had discoloured teeth or spots on your teeth (n = 509) | 24 (4.7%) | 46 (9%) | 98 (19.3%) | 53 (10.4%) | 288 (56.6%) |
Q3: Had crooked teeth, paces between your teeth (n = 516) | 40 (7.7%) | 50 (9.7%) | 93 (18%) | 68 (13.2%) | 265 (51.4%) |
Q4: Had bad breath (n = 506) | 23 (4.6%) | 35 (6.9%) | 193 (38.1%) | 135 (26.7%) | 120 (23.7%) |
Q5: Had bleeding gums (n = 549) | 39 (7.1%) | 78 (14.2%) | 152 (27.7%) | 78 (14.2%) | 202 (36.8%) |
Domain 2: Functional well-being | |||||
Q9: Had difficulty eating foods I would like to eat (n = 548) | 28 (5.1%) | 40 (7.3%) | 96 (17.5%) | 69 (12.6%) | 315 (57.5%) |
Q12: Had trouble sleeping (n = 552) | 15 (2.7%) | 20 (3.6%) | 74 (13.4%) | 55 (10%) | 388 (70.3%) |
Q15: Had difficulty saying certain words (n = 553) | 10 (1.8%) | 16 (2.9%) | 50 (9.0%) | 54 (9.8%) | 423 (76.5%) |
Q19: Had difficulty keeping your teeth clean(n = 537) | 29 (5.4%) | 56 (10.4%) | 133 (24.8%) | 105 (19.6%) | 214 (39.9%) |
Domain 3: Socio-emotional well-being | |||||
Q6: Been unhappy or sad (n = 541) | 15 (2.8%) | 31 (5.7%) | 64 (11.8%) | 46 (8.5%) | 385 (71.2%) |
Q10: Felt worried or anxious (n = 546) | 16 (2.9%) | 26 (4.8%) | 59 (10.8%) | 84 (15.4%) | 361 (66.1%) |
Q11: Avoided smiling, laughing with other children (n = 553) | 21 (3.8%) | 33 (6.0%) | 46 (8.3%) | 53 (9.6%) | 400 (72.3%) |
Q16: Felt that you look different (n = 556) | 13 (2.3%) | 12 (2.2%) | 52 (9.4%) | 50 (9.0%) | 429 (77.2%) |
Q18: Been worried about what other people think (n = 545) | 21 (3.9%) | 19 (3.5%) | 63 (11.6%) | 71 (13.0%) | 371 (68.1%) |
Q14: Teased, bullied, called names by other children (n = 554) | 9 (1.6%) | 15 (2.7%) | 35 (6.3%) | 46 (8.3%) | 449 (81.1%) |
Q7: Missed school (n = 548) | 7 (1.3%) | 20 (3.6%) | 54 (9.9%) | 56 (10.2%) | 411 (75.0%) |
Q13: Did not want to speak/read out loud in class (n = 552) | 11 (2.0%) | 8 (1.5%) | 36 (6.5%) | 31 (5.6%) | 466 (84.4%) |
Q8: Been reassured or put in trust through (n = 472) | 92 (19.5%) | 56 (11.9%) | 97 (20.5%) | 57 (12.1%) | 170 (36.0%) |
Q17: Felt that you were good looking (n = 511) | 34 (6.7%) | 27 (5.3%) | 89 (17.4%) | 60 (11.7%) | 301 (58.9%) |
Domain 1: Oral health | Domain 2: Functional well-being | Domain 3: Socio-emotional well-being | COHIP-SF 19 total score | |
---|---|---|---|---|
Mean score (SD) | 14.07 ± 3.73 | 12.86 ± 2.77 | 30.94 ± 5.75 | 57.9 ± 9.96 |
Weighted mean scorea (SD) | 13.91 ± 3.87 | 12.76 ± 2.9 | 30.91 ± 5.88 | 57.6 ± 10.41 |
Range | 3–20 | 3–16 | 0–40 | 7–76 |
Proportion of lowest possible score | 0.7% | 0.4% | 0.2% | 0.2% |
Proportion of highest possible score | 4.8% | 19.7% | 3.1% | 0.4% |
1st quartile | 12 | 11 | 28 | 52 |
3rd quartile | 17 | 15 | 35 | 65 |
Internal consistency
Since school-year started | Cronbach alpha | Item-rest correlation | Total Cronbach’s alpha if item delated |
---|---|---|---|
Domain 1: Oral health | 0.624 | ||
Q1: Had pain in your teeth/toothache | 0.47 | 0.789 | |
Q2: Had discoloured teeth or spots on your teeth | 0.403 | 0.792 | |
Q3: Had crooked teeth, paces between your teeth | 0.369 | 0.794 | |
Q4: Had bad breath | 0.371 | 0.794 | |
Q5: Had bleeding gums | 0.291 | 0.8 | |
Domain 2: Functional well-being | 0.495 | ||
Q9: Had difficulty eating foods I would like to eat | 0.448 | 0.789 | |
Q12: Had trouble sleeping | 0.52 | 0.786 | |
Q15: Had difficulty saying certain words | 0.374 | 0.794 | |
Q19: Had difficulty keeping your teeth clean | 0.299 | 0.799 | |
Domain 3: Socio-emotional well-being | 0.703 | ||
Q6: Been unhappy or sad | 0.532 | 0.784 | |
Q10: Felt worried or anxious | 0.504 | 0.786 | |
Q11: Avoided smiling, laughing with other children | 0.556 | 0.783 | |
Q16: Felt that you look different | 0.502 | 0.788 | |
Q18: Been worried about what other people think | 0.412 | 0.791 | |
Q14: Teased, bullied, called names by other children | 0.495 | 0.790 | |
Q7: Missed school | 0.423 | 0.792 | |
Q13: Did not want to speak/read out loud in class | 0.502 | 0.789 | |
Q8: Been reassured or put in trust through | 0.099 | 0.817 | |
Q17: Felt that you were good looking | 0.032 | 0.819 | |
COHIP-SF-19 total score | 0.802 |
Confirmatory factor analysis
Modelsa | p | X2/DF | RMSEA | GFI | AGFI | CFI | AIC |
---|---|---|---|---|---|---|---|
Model 1b | 0.001 | 3.751 | 0.07 | 0.892 | 0.861 | 0.724 | 639.134 |
Model 2c | 0.001 | 3.779 | 0.071 | 0.892 | 0.860 | 0.823 | 641.462 |
Model 3d | 0.001 | 2.731 | 0.056 | 0.926 | 0.905 | 0.889 | 488.123 |
Good fit | [0.05; 1] | [0; 2] | [0; 0.05] | [0.95; 1] | [0.9; 1] | [0.97; 1] | > AIC |
Acceptable | [0.01; 0.05] | [2; 3] | [0.05; 0.08] | [0.9; 0.95] | [0.85; 0.9] | [0.95; 0.97] | > AIC |
Reproducibility
Concurrent validity
Domain 1: Oral health | Domain 2: Functional well-being | Domain 3: Socio-emotional well-being | COHIP-SF 19 total score | |
---|---|---|---|---|
Oral health problems | ||||
No (n = 267) | 15.39 ± 3.17 | 13.61 ± 2.52 | 32.85 ± 4.55 | 61.85 ± 7.69 |
A few (n = 261) | 12.92 ± 3.7 | 12.31 ± 2.73 | 29.57 ± 5.89 | 54.80 ± 9.91 |
Many/A lot (n = 28) | 12.32 ± 4.65 | 10.71 ± 3.59 | 25.39 ± 7.41 | 48.43 ± 13.54 |
pa | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
Effect sizeb [95% IC] | 0.92 [0.53–1.32] | 1.10 [0.70–1.49] | 1.53 [1.12–1.94] | 1.60 [1.19–2.00] |
Access to oral health care | ||||
No difficulty (n = 380) | 14.65 ± 3.45 | 13.28 ± 2.5 | 31.89 ± 5.1 | 59.82 ± 8.83 |
Difficulties (n = 175) | 12.84 ± 4.01 | 11.91 ± 3.1 | 28.86 ± 6.56 | 53.61 ± 11.04 |
pa | < 0.001 | < 0.001 | 0.01 | < 0.001 |
Effect size [95% IC] | 0.48 [0.30–0.67] | 0.51 [0.32–0.69] | 0.54 [0.36–0.72] | 0.64 [0.46–0.83] |
Spearman correlation coefficient | Oral health problems | Difficulty in accessing dental care |
---|---|---|
Domaine 1: Oral health | − 0.414* | − 0.216* |
Domain 2: Functional well-being | − 0.331* | − 0.218* |
Domain 3: Socio-emotional well-being | − 0.295* | − 0.240* |
COHIP-SF-19 total score | − 0.357* | − 0.286* |
Known groups and discriminant validity
Variables | Domain 1: Oral health | Domain 2: Functional well-being | Domain 3: Socio-emotional well-being | Total score | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean (SD) | RC [IC] | p | Mean (SD) | RC [IC] | p | Mean (SD) | RC [IC] | p | Mean (SD) | RC [IC] | p | |
Gender | ||||||||||||
Male (262) | 14.45 ± 3.84 | 13.12 ± 2.65 | 31.46 ± 5.31 | 59.00 ± 9.49 | ||||||||
Female (295) | 13.73 ± 3.60 | − 0.05 [− 0.1; 0.03] | 0.04 | 12.62 ± 2.88 | − 0.05 [− 0.09; − 0.003] | 0.03 | 30.49 ± 6.07 | − 0.03 [− 0.07; 0.007] | 0.05 | 56.84 ± 10.31 | − 0.04 [− 0.08; − 0.01] | < 0.01 |
Region | ||||||||||||
South (375) | 14.55 ± 3.5 | 13.11 ± 2.62 | 31.45 ± 5.45 | 59.12 ± 9.35 | ||||||||
North (112) | 13.91 ± 3.4 | − 0.02 [− 0.1; 0.07] | 0.61 | 12.81 ± 2.69 | − 0.02 [− 0.08; 0.04] | 0.55 | 30.83 ± 4.81 | − 0.01 [− 0.06; 0.03] | 0.50 | 57.56 ± 8.35 | − 0.02 [− 0.07; 0.03] | 0.38 |
Islands (70) | 11.73 ± 4.5 | − 0.2 [− 0.36; − 0.14] | < 0.01 | 11.56 ± 3.39 | − 0.15 [− 0.22; − 0.07] | < 0.01 | 28.37 ± 7.73 | − 0.1 [− 0.16; − 0.05] | < 0.01 | 51.66 ± 13.01 | − 0.17 [− 0.22; − 0.11] | < 0.01 |
Ethnicity | ||||||||||||
Oceanian (161) | 13.17 ± 3.95 | 12.13 ± 2.99 | 30.08 ± 6.15 | 55.38 ± 10.8 | ||||||||
European (42) | 16.36 ± 2.82 | 0.18 [0.07; 0.29] | < 0.01 | 14.26 ± 1.82 | 0.17 [0.07; 0.26] | < 0.01 | 32.71 ± 5.42 | 0.09 [0.02; 0.16] | 0.01 | 63.33 ± 7.83 | 0.12 [0.04; 0.19] | < 0.01 |
Multiracial (255) | 14.07 ± 3.53 | 0.07 [0.004; 0.13] | 0.04 | 12.86 ± 2.77 | 0.06 [0.01; 0.12] | 0.02 | 30.88 ± 5.47 | 0.03 [− 0.01; 0.7] | 0.13 | 57.81 ± 9.49 | 0.04 [0.009; 0.08] | 0.04 |
Others (90) | 14.60 ± 3.63 | 0.07 [− 0.01; 0.15] | 0.09 | 13.38 ± 2.55 | 0.1 [0.03; 0.17] | 0.004 | 31.72 ± 5.92 | 0.08 [0.02; 0.13] | < 0.01 | 59.7 ± 9.56 | 0.06 [0.001; 0.11] | 0.04 |
Place of living | ||||||||||||
Tribe/Squat (203) | 13.16 ± 3.81 | 12.01 ± 3.13 | 29.9 ± 6.16 | 55.08 ± 10.65 | ||||||||
Town/village (351) | 14.58 ± 3.58 | 0.54 [− 0.01; 0.12] | 0.1 | 13.32 ± 2.45 | 0.12 [0.07; 0.17] | < 0.01 | 31.48 ± 5.4 | 0.06 [0.02; 0.1] | < 0.01 | 59.38 ± 9.17 | 0.06 [0.02; 0.10] | < 0.01 |
Type of school | ||||||||||||
Private (137) | 13.53 ± 4.05 | 12.61 ± 2.93 | 30.63 ± 6.42 | 56.76 ± 11.36 | ||||||||
Public (420) | 14.25 ± 3.61 | 0.01 [− 0.1; 0.12] | 0.85 | 12.93 ± 2.74 | 0.01 [− 0.06; 0.08] | 0.79 | 31.04 ± 5.51 | 0.004 [− 0.04; 0.05] | 0.86 | 58.23 ± 9.48 | 0.01 [− 0.06; 0.08] | 0.76 |
Health insurance | ||||||||||||
State aid (131) | 13.15 ± 4.04 | 11.96 ± 3.06 | 29.48 ± 6.6 | 54.59 ± 11.16 | ||||||||
Basic insurance only (104) | 13.85 ± 3.62 | 0.50 [− 0.03; 0.13] | 0.24 | 12.67 ± 2.71 | 0.06 [− 0.002; 0.14] | 0.058 | 31.30 ± 5.18 | 0.06 [0.006; 0.12] | 0.03 | 57.82 ± 9.66 | 0.06 [0.004; 0.12] | 0.04 |
Private supplemental (304) | 14.45 ± 3.56 | 0.72 [0.004; 0.14] | 0.04 | 13.31 ± 2.58 | 0.1 [0.05; 0.16] | < 0.01 | 31.39 ± 5.53 | 0.06 [0.02; 0.10] | < 0.01 | 59.14 ± 9.34 | 0.07 [0.03; 0.12] | < 0.01 |
Toothbrushing | ||||||||||||
No/occasional (46) | 12.15 ± 3.63 | 11.87 ± 3.26 | 28.98 ± 6.93 | 53. ± 11.33 | ||||||||
Once a day (208) | 13.64 ± 3.72 | 0.05 [− 0.04; 0.16] | 0.29 | 12.43 ± 2.71 | 0.04 [− 0.38; 0.13] | 0.27 | 30.54 ± 5.4 | 0.07 [0.03; 0.14] | 0.04 | 56.61 ± 9.43 | 0.05 [− 0.02; 0.11] | 0.18 |
Twice a day (301) | 14.67 ± 3.62 | 0.11 [0.007; 0.21] | 0.03 | 13.30 ± 2.69 | 0.11 [0.02; 0.19] | 0.01 | 31.52 ± 5.72 | 0.1 [0.04; 0.17] | < 0.01 | 59.49 ± 9.83 | 0.08 [0.01; 0.15] | 0.02 |
DMFT | ||||||||||||
DMFT = 0 (334) | 14.70 ± 3.42 | 13.37 ± 2.39 | 31.68 ± 5.24 | 59.75 ± 8.66 | ||||||||
DMFT > 0 (223) | 12.99 ± 3.93 | − 0.11 [− 0.17; − 0.06] | < 0.01 | 12.10 ± 3.13 | − 0.11 [− 0.15; − 0.06] | < 0.01 | 29.76 ± 6.38 | − 0.06 [− 0.10; − 0.02] | < 0.01 | 54.85 ± 11.17 | − 0.09 [− 0.12; − 0.05] | < 0.01 |
Gingival status | ||||||||||||
No gingivitis (252) | 14.21 ± 3.69 | 13.04 ± 2.74 | 31.21 ± 5.51 | 58.46 ± 9.67 | ||||||||
Gingivitis (> 1sextant) (303) | 13.95 ± 3.75 | − 0.05 [− 0.1; 0.1] | 0.11 | 12.74 ± 2.79 | − 0.44 [− 0.09; 0.003] | 0.07 | 30.77 ± 5.92 | − 0.01 [− 0.52; 0.02] | 0.43 | 57.47 ± 10.16 | − 0.03 [− 0.07; 0.003] | 0.07 |
Infectious process | ||||||||||||
No (511) | 14.26 ± 3.57 | 13.06 ± 2.64 | 31.30 ± 5.48 | 58.62 ± 9.27 | ||||||||
At least one (44) | 11.42 ± 4.45 | − 0.26 [− 0.35; − 0.16] | < 0.01 | 10.77 ± 3.21 | -0.2 [− 0.28; − 0.12] | < 0.01 | 26.93 ± 7.39 | − 0.13 [− 0.19; − 0.06] | < 0.01 | 49.12 ± 13.24 | − 0.2 [− 0.27; − 0.14] | < 0.01 |
Number of PFU | ||||||||||||
< 6 (76) | 14.29 ± 3.88 | 12.74 ± 2.81 | 30.3 ± 6.28 | 57.31 ± 10.76 | ||||||||
≥ 6 (481) | 14.04 ± 3.71 | − 0.02 [− 0.08; 0.74] | 0.96 | 12.87 ± 2.79 | 0.02 [− 0.04; 0.09] | 0.52 | 31.05 ± 5.66 | 0.03 [− 0.17; 0.08] | 0.18 | 57.96 ± 9.86 | 0.02 [− 0.03; 0.07] | 0.40 |