Fingerprint comparison of VLBW cases and matched comparison children: number (%) of arches, loops, and whorls
| Digit | Arches | Loops | Whorls | Total | χ2(DF); p value | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Index group (%) | Comparison group (%) | Index group (%) | Comparison group (%) | Index group (%) | Comparison group (%) | Index group (%) | Comparison group (%) | ||||||||||
| Right hand | |||||||||||||||||
| Thumb | 1 (1%) | 2 (2%) | 87 (68%) | 77 (60%) | 40 (31%) | 49 (38%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 1.85; p = 0.40 | ||||||||
| Fore | 15 (12%) | 14 (11%) | 74 (58%) | 73 (57%) | 39 (30%) | 41 (32%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 0.09; p = 0.96 | ||||||||
| Middle | 8 (6%) | 6 (5%) | 96 (75%) | 98 (77%) | 24 (19%) | 24 (19%) | 128 (100%) | 128 (100%) | χ2 (1 DF) = 0.31; p = 0.86 | ||||||||
| Ring | 1 (1%) | 2 (2%) | 66 (52%) | 63 (49%) | 61 (48%) | 63 (49%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 0.66; p = 0.80 | ||||||||
| Little | 0 (0%) | 4 (3%) | 113 (88%) | 107 (84%) | 15 (12%) | 17 (13%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 4.29; p = 0.12 | ||||||||
| All digits | 25 (4%) | 28 (4%) | 436 (68%) | 418 (65%) | 179 (28%) | 194 (30%) | 640 (100%) | 640 (100%) | χ2 (2 DF) = 1.15; p = 0.56 | ||||||||
| Left hand | |||||||||||||||||
| Thumb | 3 (2%) | 2 (2%) | 93 (73%) | 81 (63%) | 32 (25%) | 45 (35%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 3.22; p = 0.20 | ||||||||
| Fore | 18 (14%) | 16 (13%) | 69 (54%) | 77 (60%) | 41 (32%) | 35 (27%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 1.02; p = 0.60 | ||||||||
| Middle | 15 (12%) | 16 (13%) | 84 (66%) | 85 (66%) | 29 (23%) | 27 (21%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 0.11; p = 0.95 | ||||||||
| Ring | 3 (2%) | 4 (3%) | 79 (62%) | 80 (63%) | 46 (36%) | 44 (34%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 0.44; p = 0.91 | ||||||||
| Little | 2 (2%) | 4 (3%) | 112 (88%) | 107 (84%) | 14 (11%) | 17 (13%) | 128 (100%) | 128 (100%) | χ2 (2 DF) = 1.07; p = 0.59 | ||||||||
| All digits | 41 (6%) | 42 (6%) | 437 (68%) | 430 (67%) | 162 (25%) | 168 (26%) | 640 (100%) | 640 (100%) | χ2 (2 DF) = 0.12; p = 0.92 | ||||||||
| All digits, both hands | 66 (5%) | 70 (5%) | 873 (68%) | 848 (66%) | 341 (27%) | 362 (28%) | 1280 (100%) | 1280 (100%) | χ2 (2 DF) = 1.11; p = 0.57 | ||||||||