Table 1 The CARIES-QC-U classification system
From: Adolescent valuation of CARIES-QC-U: a child-centred preference-based measure of dental caries
Dimensions | Level | Variables | Health state descriptors |
|---|---|---|---|
Hurt | 1 | Hurt1 | My teeth do not hurt me at all |
| Â | 2 | Hurt2 | My teeth hurt me a bit |
| Â | 3 | Hurt3 | My teeth hurt me a lot |
Annoy | 1 | Annoy1 | My teeth do not annoy me at all |
| Â | 2 | Annoy2 | My teeth annoy me a bit |
| Â | 3 | Annoy3 | My teeth annoy me a lot |
Kept awake | 1 | Awake1 | My teeth do not keep me awake at all |
| Â | 2 | Awake2 | My teeth keep me awake a bit |
| Â | 3 | Awake3 | My teeth keep me awake a lot |
Hard to eat | 1 | Eat1 | My teeth do not make it hard to eat some foods |
| Â | 2 | Eat2 | My teeth make it a bit hard to eat some foods |
| Â | 3 | Eat3 | My teeth make it really hard to eat some foods |
Cried | 1 | Cry1 | My teeth do not make me cry at all |
| Â | 2 | Cry2 | My teeth make me cry a bit |
| Â | 3 | Cry3 | My teeth make me cry a lot |
Duration* in life years | Soft launch variable | Main survey variable | Â |
|---|---|---|---|
| Â | LY1 (1Â year) | LY6m (6Â months) | Â |
| Â | LY4 (4Â years) | LY12m (1Â year) | Â |
| Â | LY7 (7Â years) | LY18m (1Â year 6Â months) | Â |
| Â | LY10 (10Â years) | LY24m (2Â years) | Â |