Figure 1.

Distribution of major categories of anomalies with respect to familial or sporadic nature, isolated or syndromic presentations, and parental consanguinity
| Anomaly type | Total | Familial or sporadic nature* | Isolated or syndromic* | Parental marriage type* | ||||
|---|---|---|---|---|---|---|---|---|
| N | % | Sporadic | Familial | Isolated | Syndromic | Consanguineous | Nonconsanguineous | |
| Neurological disorders | 100 | 27.7 | 83 | 17 | 49 | 51 | 26 | 74 |
| Sensorineural defects | 70 | 19.4 | 48 | 22 | 63 | 7 | 33 | 37 |
| Limb defects | 60 | 16.6 | 51 | 9 | 52 | 8 | 14 | 46 |
| Eye or visual impairments | 55 | 15.2 | 46 | 9 | 48 | 7 | 18 | 37 |
| Musculoskeletal defects | 37 | 10.2 | 29 | 8 | 29 | 8 | 16 | 21 |
| Ectodermal anomalies | 13 | 3.6 | 4 | 9 | 8 | 5 | 7 | 6 |
| Blood disorders | 12 | 3.3 | 2 | 10 | 12 | 0 | 6 | 6 |
| Others | 14 | 3.9 | 13 | 1 | 14 | 0 | 3 | 11 |
| Total N (%) | 361 (100) | 100 | 276 (76) | 85 (24) | 275 (76) | 86 (24) | 123 (34) | 238 (66) |
Syndromic cases with a combination of associated anomalies
| Major anomaly | Associated anomaly | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deaf–mute | Eye or visual impairments | Cerebral palsy | Epilepsy | Growth retardation | Polydactyly | Club foot | Oligodactyly | Contracture | Syndactyly | Others | Total | |
| Neurological disorders | 30 | 8 | 7 | 1 | 2 | 48 | ||||||
| Sensorineural defects | 1 | 1 | 5 | 7 | ||||||||
| Limb defects | 1 | 2 | 2 | 2 | 2 | 9 | ||||||
| Eye or visual impairments | 2 | 5 | 1 | 1 | 9 | |||||||
| Musculoskeletal defects | 2 | 2 | 1 | 3 | 8 | |||||||
| Ectodermal defects | 1 | 2 | 3 | |||||||||
| Others | 1 | 1 | ||||||||||
| Total | 35 | 16 | 7 | 1 | 2 | 1 | 3 | 2 | 2 | 1 | 15 | 85 |
Distribution of major categories of anomalies with respect to gender of index cases and total affected individuals in all families
| Anomaly type | Total | Index individual | Total affected in all families | ||||
|---|---|---|---|---|---|---|---|
| N | % | Male | Female | Males | Females | Total | |
| Neurological disorders | 100 | 27.7 | 79 | 21 | 42 | 25 | 67 |
| Sensorineural defects | 70 | 19.4 | 48 | 22 | 51 | 30 | 81 |
| Limb defects | 60 | 16.6 | 41 | 19 | 58 | 22 | 80 |
| Eye or visual impairments | 55 | 15.2 | 46 | 9 | 54 | 25 | 79 |
| Musculoskeletal defects | 37 | 10.2 | 26 | 11 | 46 | 22 | 68 |
| Ectodermal anomalies | 13 | 3.6 | 6 | 7 | 89 | 51 | 140 |
| Blood disorders | 12 | 3.3 | 11 | 1 | 53 | 30 | 83 |
| Others | 14 | 3.9 | 10 | 4 | 10 | 5 | 15 |
| Total N (%) | 361 (100) | 100 | 267 (74) | 94 (23) | 403 (66) | 210 (34) | 613 (100) |
Demographic attributes of recruited individuals
| Variable | Male | Female | Total | |||
|---|---|---|---|---|---|---|
| N | % | N | % | N | % | |
| Age range (years)* | ||||||
| Up to 9 | 99 | 37.1 | 57 | 60.6 | 156 | 43.2 |
| >9–19 | 110 | 41.2 | 29 | 30.9 | 139 | 38.5 |
| >19 | 58 | 21.7 | 8 | 8.5 | 66 | 18.3 |
| Total | 267 | 100.0 | 94 | 100.0 | 361 | 100.0 |
| Origin* | ||||||
| Rural | 226 | 84.6 | 78 | 83.0 | 304 | 84.2 |
| Urban | 41 | 15.4 | 16 | 17.0 | 57 | 15.8 |
| Caste system | ||||||
| Masozai | 120 | 44.9 | 50 | 53.2 | 170 | 47.1 |
| Tarkalani | 49 | 18.4 | 18 | 19.1 | 67 | 18.6 |
| Afridi | 26 | 9.7 | 2 | 2.1 | 28 | 7.8 |
| Uthman Khel | 16 | 6.0 | 4 | 4.3 | 20 | 5.5 |
| Others | 56 | 21.0 | 20 | 21.3 | 76 | 21.1 |
| Literacy level (age >5 years) | ||||||
| Illiterate | 127 | 55.9 | 46 | 64.8 | 173 | 58.1 |
| Literate | 100 | 44.1 | 25 | 35.2 | 125 | 41.9 |
| Family type | ||||||
| Nuclear | 215 | 80.5 | 73 | 77.7 | 288 | 79.8 |
| Extended or joint | 52 | 19.5 | 21 | 22.3 | 73 | 20.2 |
Major and minor categories of anomalies, proportions, and classification
| Anomalies (major or minor) | N | Proportion | 95% CI | ICD-10 | OMIM |
|---|---|---|---|---|---|
| Neurological disorders | 100 | 0.277 | 0.231–0.323 | ||
| ID – all | 58 | 0.161 | 0.123–0.199 | ||
| ID – mild | 27 | 0.075 | 0.048–0.102 | F70 | 249500 |
| ID – moderate | 18 | 0.050 | 0.027–0.072 | F71 | |
| ID – severe or profound | 13 | 0.036 | 0.017–0.055 | F72, F73 | 611091 |
| Cerebral palsy | 16 | 0.044 | 0.023–0.066 | G80.9 | 605388 |
| Down syndrome | 11 | 0.030 | 0.013–0.048 | Q90.9 | 190685 |
| Epilepsy | 6 | 0.017 | 0.003–0.030 | G40 | 607208 |
| Neuropathy | 3 | 0.008 | −0.001 to 0.018 | G60 | 605253 |
| Alzheimer disease | 1 | 0.003 | −0.003 to 0.008 | F00.1 | 104300 |
| Microcephaly | 1 | 0.003 | −0.003 to 0.008 | Q02 | 251200 |
| Multiple sclerosis | 1 | 0.003 | −0.003 to 0.008 | G35 | 126200 |
| Spastic paraplegia | 1 | 0.003 | −0.003 to 0.008 | G82.1 | 182600 |
| Spina bifida | 1 | 0.003 | −0.003 to 0.008 | Q05 | 182940 |
| Tremor | 1 | 0.003 | −0.003 to 0.008 | G25.0 | 190300 |
| Sensorineural defects | 70 | 0.194 | 0.153–0.235 | ||
| Deaf–mute | 48 | 0.133 | 0.098–0.168 | H90 | 304500 |
| Mute only | 19 | 0.053 | 0.030–0.076 | R47.0 | |
| Stuttering | 3 | 0.008 | −0.001 to 0.018 | F98.5 | 184450 |
| Limb defects | 60 | 0.166 | 0.128–0.205 | ||
| Talipes or clubfoot | 13 | 0.036 | 0.017–0.055 | Q66.9 | 119800 |
| Limb amputations | 12 | 0.033 | 0.015–0.052 | Q73.8 | 217100 |
| Polydactyly (poly.; all) | 8 | 0.022 | 0.007–0.037 | ||
| Poly., preaxial type I | 4 | 0.011 | 0.000–0.022 | Q69.1 | 174400 |
| Poly., postaxial type A | 3 | 0.008 | −0.001 to 0.018 | Q69.0;Q69.2 | 174200 |
| Poly., postaxial type B | 1 | 0.003 | −0.003 to 0.008 | Q69.0;Q69.2 | 174200 |
| Syndactyly (synd.; all) | 8 | 0.022 | 0.007–0.037 | ||
| Synd., type 1c | 3 | 0.008 | −0.001 to 0.018 | Q70.1 | |
| Synd., type 1a | 2 | 0.006 | −0.002 to 0.013 | Q70.3 | 609815 |
| Synd., type II | 2 | 0.006 | −0.002 to 0.013 | Q70.4 | 186000 |
| Synd., type 1d | 1 | 0.003 | −0.003 to 0.008 | Q70.2 | |
| Contractures | 5 | 0.014 | 0.002–0.026 | M21.8 | 259450 |
| Brachydactyly, 4th toe | 2 | 0.006 | −0.002 to 0.013 | Q72.8 | 113475 |
| Oligodactyly | 2 | 0.006 | −0.002 to 0.013 | Q73.8 | 176240 |
| Split-hand split-foot | 2 | 0.006 | −0.002 to 0.013 | Q72.7 | 183600 |
| Brachy-mesophalangy | 1 | 0.003 | −0.003 to 0.008 | 112800 | |
| Camptodactyly | 1 | 0.003 | −0.003 to 0.008 | Q68.1 | 114200 |
| Clinodactyly | 1 | 0.003 | −0.003 to 0.008 | Q74.0 | |
| Constriction ring | 1 | 0.003 | −0.003 to 0.008 | Q79.8 | 217100 |
| Leg length discrepancy | 1 | 0.003 | −0.003 to 0.008 | Q72.9 | |
| Overriding toe | 1 | 0.003 | −0.003 to 0.008 | ||
| Radial hemimelia | 1 | 0.003 | −0.003 to 0.008 | Q71.8 | 114500 |
| Ulnar hemimelia | 1 | 0.003 | −0.003 to 0.008 | Q71.8 | |
| Eye or visual impairments | 55 | 0.152 | 0.115–0.189 | ||
| Squint eye (esotropia) | 17 | 0.047 | 0.025–0.069 | H50.0 | 185100 |
| Squint eye (exotropia) | 7 | 0.019 | 0.005–0.034 | H50.1 | |
| Blindness | 14 | 0.039 | 0.019–0.059 | H54.0 | |
| High myopia | 13 | 0.036 | 0.017–0.055 | H52.1 | 160700 |
| Anophthalmia | 2 | 0.006 | −0.002 to 0.013 | Q11.1 | |
| Color blindness | 1 | 0.003 | −0.003 to 0.008 | H53.5 | 303800 |
| Congenital nystagmus | 1 | 0.003 | −0.003 to 0.008 | H55 | 617297 |
| Musculoskeletal defects | 37 | 0.102 | 0.071–0.134 | ||
| Dwarfisms | 8 | 0.022 | 0.007–0.037 | Q77.4 | 100800 |
| Muscular atrophy | 7 | 0.019 | 0.005–0.034 | G12.1 | 253300 |
| Muscular dystrophy | 7 | 0.019 | 0.005–0.034 | G71.0 | 310200 |
| Kyphoscoliosis | 4 | 0.011 | 0.000–0.022 | M41.9 | 610170 |
| Congenital hip dislocation | 3 | 0.008 | −0.001 to 0.018 | Q65 | 142700 |
| Kyphosis | 2 | 0.006 | −0.002 to 0.013 | Q76.4 | |
| Mucopolysaccharidosis | 1 | 0.003 | −0.003 to 0.008 | E76.3 | 607014 |
| Pectus carinatum | 1 | 0.003 | −0.003 to 0.008 | Q67.7 | 245600 |
| Pectus excavatum | 1 | 0.003 | −0.003 to 0.008 | Q67.6 | 600399 |
| Rickets | 1 | 0.003 | −0.003 to 0.008 | E83.3 | 277440 |
| Spinal muscular atrophy | 1 | 0.003 | −0.003 to 0.008 | G12.1 | 253300 |
| Torticollis | 1 | 0.003 | −0.003 to 0.008 | M43.6 | 189600 |
| Ectodermal anomalies | 13 | 0.036 | 0.017–0.055 | ||
| Ectodermal dysplasia | 3 | 0.008 | −0.001 to 0.018 | Q82.4 | 224900 |
| Anonychia | 2 | 0.006 | −0.002 to 0.013 | Q84.3 | 206800 |
| Early tooth decay | 2 | 0.006 | −0.002 to 0.013 | K02 | |
| Ichthyosis | 2 | 0.006 | −0.002 to 0.013 | Q80.1 | 602400 |
| Albinism | 1 | 0.003 | −0.003 to 0.008 | E70.3 | 300500 |
| Dentinogenesis imperfecta | 1 | 0.003 | −0.003 to 0.008 | K00.5 | 125490 |
| Eczema | 1 | 0.003 | −0.003 to 0.008 | L20 | 603165 |
| Epidermolysis | 1 | 0.003 | −0.003 to 0.008 | Q81.2 | 226600 |
| Blood disorders | 12 | 0.033 | 0.015–0.052 | ||
| Thalassemia (major = 8; intermedia = 1) | 9 | 0.025 | 0.009–0.041 | D56.1 | 613985 |
| Hemophilia | 3 | 0.008 | −0.001 to 0.018 | D66 | 306700 |
| Others | 14 | 0.039 | 0.019–0.059 | ||
| Cleft palate | 4 | 0.011 | 0.000–0.022 | Q35 | 119540 |
| Heart septal defect | 3 | 0.008 | −0.001 to 0.018 | Q24.9 | 600001 |
| Lymphedema | 2 | 0.006 | −0.002 to 0.013 | Q82.0 | 153100 |
| Urogenital defect | 3 | 0.008 | −0.001 to 0.018 | Q62 | 617641 |
| Cleft lip | 1 | 0.003 | −0.003 to 0.008 | Q36 | 119530 |
| Enuresis | 1 | 0.003 | −0.003 to 0.008 | R32 | 600631 |
| Total | 361 | 1.000 | 1.000–1.000 |