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Table 4 Comparative analysis of all pediatric injuries by whether patient was identified in the NEISS narrative as sitting on a lap. The indicated pairwise comparisons were performed using the chi square test

From: Playground slide-related injuries in preschool children: increased risk of lower extremity injuries when riding on laps

  Identified as Patient on Lap Pearson χ2 Test
Noa Yes OR 95% CI P value
n (column%) n (column%)
Sex
 Male 7069 (59%) 379 (59%) 1.01 0.86–1.19 0.92
 Female 4970 (41%) 264 (41%)
Race
 White 5656 (65%) 342 (77%) 1.81 1.44–2.26 < 0.0001
 Other Race (ref) 3076 (35%) 103 (23%)
Diagnosis
 Musculoskeletal 5522 (50%) 494 (88%) 7.12 5.53–9.16 < 0.0001
 Other Injury Type (ref) 5574 (50%) 70 (12%)
 Brain 1271 (11%) 5 (1%) 0.069 0.029–0.17 < 0.0001
 Other Injury Type (ref) 9825 (89%) 559 (99%)
 Skin 4294 (39%) 65 (12%) 0.21 0.16–0.27 < 0.0001
 Other Injury Type (ref) 6802 (61%) 499 (88%)
Body Part
 Lower Extremities 2734 (23%) 597 (93%) 43 32.0–58.0 < 0.0001
 Other Body Parts (ref) 9263 (77%) 47 (7%)
 Upper Extremities 4142 (35%) 24 (4%) 0.073 0.049–0.11 < 0.0001
 Other Body Parts (ref) 7844 (65%) 620 (96%)
 Head/Neck/Face 4629 (39%) 12 (2%) 0.030 0.017–0.054 < 0.0001
 Other Body Parts (ref) 7357 (61%) 632 (98%)
 Torso 492 (4%) 11 (2%) 0.41 0.22–0.74 0.0024
 Other Body Parts (ref) 11,494 (96%) 633 (98%)
Fractures Onlyb
 Lower Leg and Ankle 1018 (24%) 336 (94%) 49.5 31.7–77.4 < 0.0001
 Other 3152 (76%) 21 (6%)
Disposition
 Stayed/Transferred 612 (5%) 10 (2%) 0.29 0.16–0.55 0.0012
 Left ED (ref) 11,428 (95%) 634 (98%)
Location
 Private Residence 1607 (19%) 29 (7%) 0.34 0.23–0.50 < 0.0001
 Other Locations (ref) 6978 (81%) 372 (93%)
 School/Daycare 2090 (24%) 4 (1%) 0.031 0.012–0.084 < 0.0001
 Other Locations (ref) 6495 (76%) 397 (99%)
 Park/Public Area 8585 (70%) 368 ((92%) 4.8 3.36–6.87 < 0.0001
 Other Locations (ref) 3697 (30%) 33 (8%)
  1. Abbreviations: ED emergency department, OR unadjusted odds ratio, CI confidence interval
  2. aReference = Cases where the narrative did not directly state that the injury occurred while the patient was going down a slide on another person’s lap
  3. bChildren with fractures, N = 4527