Table 1.
Patients characteristics at HMC and SC and the total sample (N = 599)
| Characteristics | HMC (n = 200) | SC (n = 399) | Total (n = 599) | p‐valuea |
|---|---|---|---|---|
| Age (years, n = 599) | ||||
| Mean ± SD | 8.04 ± 7.8 | 15.7 ± 5.6 | 13.2 ± 7.4 | <.0001 |
| [median (min‐max)] | [6 (1–58)] | [15 (1–32)] | [13(1–58)] | |
| Age (years, n = 599) | ||||
| ≤14 years | 172 (86.0%) | 163 (40.9%) | 335 (56.0%) | <.0001 |
| >14 years | 28 (14.0%) | 236 (59.1%) | 264 (44.0%) | |
| Gender (n = 599) | ||||
| Male | 110 (55.0%) | 242 (60.7%) | 352 (58.8%) | .185 |
| Female | 90 (45.0%) | 157 (39.3%) | 247 (41.2%) | |
| Parental consanguinity (n = 586) | ||||
| Yes | 145 (74.7%) | 252 (64.3%) | 397 (67.7%) | .011 |
| No | 49 (25.3%) | 140 (35.7%) | 189 (32.3%) | |
| Diagnosis (n = 599) | ||||
| Autosomal Recessive | 82 (41.0%) | 64 (16.0%) | 146 (24.4%) | <.001 |
| Autosomal Dominant | 9 (4.5%) | — | 9 (1.5%) | |
| X‐linked | 3 (1.5%) | 2 (0.5%) | 5 (0.8%) | |
| Chromosomal disorder | 6 (3.0%) | 188 (47.1%) | 194 (32.4%) | |
| Undiagnosed | 104 (52.0%) | 146 (36.6%) | 250 (41.7%) | |
| Degree of relation (n = 172) | ||||
| First cousin | 22 (16.1%) | 13 (37.1%) | 35 (20.3%) | <.001 |
| First cousin (paternal) | 38 (27.7%) | 4 (11.4%) | 42 (24.4%) | |
| First cousin (maternal) | 21 (15.3%) | 0 | 21 (12.2%) | |
| Double first cousin | 8 (5.8%) | 0 | 8 (4.7%) | |
| Second cousin | 22 (16.1%) | 0 | 22 (12.8%) | |
| Same family tribe | 6 (4.4%) | 18 (51.4%) | 24 (14.0%) | |
| Others | 20 (14.6%) | 0 | 20 (11.6%) | |
| Father’ education (n = 523) | ||||
| Postgraduate degree | 9 (5.0%) | 10 (2.9%) | 19 (3.6%) | .009 |
| University degree | 43 (23.6%) | 85 (24.9%) | 128 (24.5%) | |
| Completed secondary school | 71 (39.0%) | 86 (25.2%) | 157 (30.0%) | |
| Completed primary school | 30 (16.5%) | 78 (22.9%) | 108 (20.7%) | |
| Primary school | 17 (9.3%) | 52 (15.2%) | 69 (13.2%) | |
| Illiterate | 12 (6.6%) | 30 (8.8%) | 42 (8.0%) | |
| Mother's education (n = 546) | ||||
| Postgraduate degree | 1 (0.5%) | 3 (0.8%) | 4 (0.7%) | .003 |
| University degree | 38 (20.7%) | 113 (31.2%) | 151 (27.8%) | |
| Completed secondary school | 73 (39.7%) | 87 (24.0%) | 160 (29.5%) | |
| Completed primary school | 35 (19.0%) | 62 (17.1%) | 97 (17.9%) | |
| Primary school | 16 (8.7%) | 43 (11.9%) | 59 (10.9%) | |
| Illiterate | 21 (11.4%) | 54 (14.9%) | 75 (13.8%) | |
| Fathers’ Employment (n = 554) | .011 | |||
| Employed | 158 (87.3%) | 287 (76.9%) | 445 (80.3%) | |
| Unemployed | 4 (2.2%) | 24 (6.4%) | 28 (5.1%) | |
| Retired | 19 (10.5%) | 62 (16.6%) | 81 (14.6%) | |
| Mothers’ employment (n = 560) | ||||
| Employed | 56 (31.1%) | 107 (28.2%) | 163 (29.1%) | .121 |
| Unemployed | 121 (67.2%) | 253 (66.6%) | 374 (66.8%) | |
| Retired | 3 (1.7%) | 20 (5.3%) | 23 (4.1%) | |
Some values were observed to be either missing or unknown for some parameters and therefore sums are not equal to n = 599 for each variable. All percentages calculations were based on nonmissing values.
Abbreviation: HMC, Hamad Medical Corporation; SC, Shafallah Center.
a
p‐value is computed using unpaired t test, Pearson Chi‐square and Yates corrected Chi‐Squared tests for general comparisons between variables’ categories among the two institutions.