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Table 5 DMFT, Care index (CI) and Restorative index (RI) in CLD and CNLD (n = 25 studies; 20 studies with DMFT data and 16 with standard deviations reported). Studies where DMFT data couldn’t be used are shown in learning disability subgroup tables, with reasons why, but are not included in calculations data couldn’t be used are shown, with reasons why, but are not included in calculations. All data were calculated from the primary data reported in Additional file 1: Appendix 2

From: Dental caries experience, care index and restorative index in children with learning disabilities and children without learning disabilities; a systematic review and meta-analysis

Mixed Learning Disability Groups (permanent teeth; n = 6 studies)
Study Number of participants Ages DMFT data
CLD CNLD CLD DMFT (sd) CNLD DMFT (sd) CLD CI CND CI CLD RI CNLD RI Reason no DMFT data included
Bakry 2012 [64, 66] 33 53 3–13      0.12 0.84 DFT only
Forsberg 1985 [24] 100 103 12–17 7.20 (6.10) 9.00 (4.00)      
Jokic 2007 [59] 80 80 3–17 6.39 4.76      
Moreira 2012 [28] 76 89 mean 8.9 5.20 (5.75) 1.50 (2.10)      
Palin 1982 [60] 58 58 9–10        no M or DMFS
Pope 1991 [62] 50 95 3–18 2.94 2.27 0.36 0.82 0.43 0.82  
Subgroup Total 397 478         
Mean (sd) 66.17 (±23.92) 79.67 (±20.24)   5.43 (±1.85) 5.20 (±2.79)