TABLE 1

Prearrest Characteristics of Patients

Prearrest CharacteristicObesity (N = 213)Normal Weight (N = 484)Underweight (N = 571)P
Age, median (IQR), mo48 (17–144)a30 (8–132)5 (1–16)a<.001
Male, n (%)124 (58)a225 (46)334 (58)a<.001
BMI, median (IQR), kg/m222.7 (19.7–28.2)a16.2 (15–18.3)11 (9.3–12.6)a<.001
BMI-for-age percentile, median (IQR)99.6 (98.5–99.9)a47.3 (21.4–76.4)0.01 (0.01–0.3)a<.001
BMI-for-age percentile z score, median (IQR)2.62 (2.17–3.75)a−0.07 (−0.79 to 0.72)−3.94 (−5.73 to −2.75)a<.001
Race or ethnicity, n (%)
    White120 (56)275 (57)302 (53).40
    Black44 (21)108 (22)141 (25).43
    Other31 (15)66 (14)74 (13).84
    Unknown/not documented18 (8)35 (7)54 (9).43
Facility type, n (%)
    Pediatric85 (40)229 (47)312 (55)a<.001
    Adult11 (5)25 (5)6 (1)a<.001
    Mixed117 (55)230 (48)253 (44)<.05
Event location, n (%)
    ICU156 (73)333 (69)405 (71).48
    Operating room5 (2)24 (5)16 (3).10
    Emergency department23 (11)48 (10)41 (7).16
    Inpatient, monitored6 (3)30 (6)32 (6).18
    Inpatient ward14 (7)29 (6)48 (8).30
    Other/unknown9 (4)20 (4)29 (5).74
Illness category, n (%)
    Medical, cardiac29 (14)85 (18)107 (19).24
    Medical, noncardiac130 (61)a225 (46)245 (43)<.001
    Surgical, cardiac8 (4)a69 (14)166 (29)a<.001
    Surgical, noncardiac10 (5)44 (9)42 (7).13
    Trauma33 (15)57 (12)7 (1)a<.001
    Other3 (1)4 (1)4 (1).63
Preexisting conditions, n (%)
    Respiratory insufficiency121 (57)278 (57)387 (68)a<.001
    Hypotension88 (41)191 (39)189 (33)<.05
    Congestive heart failure22 (10)a112 (23)195 (34)a<.001
    Arrhythmia38 (18)94 (19)115 (20).77
    Infection (pneumonia or sepsis)79 (37)a116 (24)157 (27)<.01
    Renal insufficiency29 (14)61 (13)66 (12).71
    Hepatic insufficiency16 (8)31 (6)36 (6).82
    Cancer19 (9)35 (7)15 (3)a<.001
    Major trauma40 (19)57 (12)8 (1)a<.001
    Metabolic/electrolyte abnormality44 (21)99 (20)128 (22).71
    Toxicologic abnormality4 (2)6 (1)4 (1).35
    Central nervous system disorder72 (34)153 (32)142 (25)<.05
    Prematurity8 (4)23 (5)120 (21)a<.001
Mode of discovery of event, n (%)
    Witnessed193 (91)457 (94)543 (95).06
    Monitored through electrocardiography178 (84)424 (88)494 (87).36
    Monitored through pulse oximetry179 (84)421 (87)514 (90).06
Existing interventions in place, n (%)
    Vascular access193 (91)439 (91)506 (89).49
    Arterial catheter58 (27)161 (33)183 (32).28
    Mechanical ventilation124 (58)304 (63)341 (60).43
    Vasoactive infusion79 (37)208 (43)219 (38).20
    Dialysis/extracorporeal membrane oxygenation7 (3)20 (4)12 (2).16
  • a P < .001, adjusted for posthoc comparisons with normal-weight group.