Table 2

Use of critical care medications classified by the duration of mechanical ventilation

MV durationsTotal
(n=22 677)
MV<48 hours
(n=5480)
48hrs≤MV<7 days
(n=8903)
MV≥7 days (n=8294)P value*
n (%)n (%)n (%)n (%)
Analgo-sedatives19 941 (87.9)4143 (75.6)7886 (88.6)7912 (95.4)<0.01
Sedatives17 513 (77.2)3186 (58.1)6909 (77.6)7418 (89.4)<0.01
 Days of use4 (2–9)2 (1–3)3 (1–6)7 (3–15)<0.01
 % person days45.1 (40.3)43.5 (44.9)47.8 (40.0)43.4 (37.0)<0.01
 Midazolam14 069 (62.0)2196 (40.1)5406 (60.7)6467 (78.0)<0.01
 Lorazepam5980 (26.4)871 (15.9)2163 (24.3)2946 (35.5)<0.01
 Propofol323 (1.4)52 (0.9)112 (1.3)159 (1.9)<0.01
Analgesics total14 744 (65.0)2921 (53.3)5499 (61.8)6324 (76.2)<0.01
Opioid analgesics11 477 (50.6)2254 (41.1)4227 (47.5)4996 (60.2)<0.01
 Days of use3.0 (1–10)2 (1–6)3 (1–7)5 (2–14)<0.01
 % person days28.1 (38.6)32.6 (43.8)28.5 (38.7)24.6 (34.1)<0.01
  Daily MED (mg)23.8 (9.3–85.2)23.3 (10–78.3)25.0 (9.0–88.7)23.1 (9.3–87.2)0.86
 Intravenous10 760 (47.4)2107 (38.4)3942 (44.3)4711 (56.8)<0.01
  Daily MED (mg)15.7 (8.3–60)15.2 (8.3–46.4)15.4 (8.3–54)15.7 (8.25–78.5)<0.01
 Enteral2635 (11.6)512 (9.3)1016 (11.4)1107 (13.3)<0.01
  Daily MED (mg)16.0 (9.6–40)32.5 (12.5–90)20.0 (10–56.3)13.3 (7.5–22.2)<0.01
 Topical1473 (6.5)233 (4.3)509 (5.7)731 (8.8)<0.01
  Daily MED (mg)50.0 (30–80)60.0 (30–151.2)50.0 (30–90)45.0 (30–60)<0.01
 Morphine3932 (17.3)646 (11.8)1352 (15.2)1934 (23.3)<0.01
 Fentanyl2683 (11.8)414 (7.6)973 (10.9)1296 (15.6)<0.01
 Remifentanil742 (3.3)103 (1.9)269 (3.0)370 (4.5)<0.01
 Pethidine3238 (14.3)628 (11.5)1081 (12.1)1529 (18.4)<0.01
Non-opioid analgesics7713 (34.0)1398 (25.5)2772 (31.1)3543 (42.7)<0.01
 Days of use4 (1–15)3 (1–12)4 (1–12)5 (2–19)<0.01
 % person days19.7 (35.7)20.2 (38.1)20.1 (36.2)18.8 (33.4)<0.01
 AAP or NSAIDs6089 (26.9)1091 (19.9)2131 (23.9)2867 (34.6)<0.01
 Anticonvulsants2821 (12.4)511 (9.3)1026 (11.5)1284 (15.5)<0.01
NMBAs6593 (29.1)868 (15.8)2394 (26.9)3331 (40.2)<0.01
 Days of use2 (1–4)1 (1–2)1 (1–3)3 (1–6)<0.01
 % person days11.3 (25.3)11.5 (29.9)12.2 (26.3)10.2 (20.6)<0.01
 Vecuronium4189 (18.5)511 (9.3)1450 (16.3)2228 (26.9)<0.01
 Rocuronium831 (3.7)105 (1.9)331 (3.7)395 (4.8)<0.01
 Cisatracurium1614 (7.1)153 (2.8)568 (6.4)893 (10.8)<0.01
Antipsychotics4444 (19.6)610 (11.1)1683 (18.9)2151 (25.9)<0.01
 Days of use6 (2–19)4 (1–15)5 (2–18)7 (2–21)<0.01
 % person days11.2 (28.5)8.1 (25.6)12.2 (30.1)12.1 (28.5)<0.01
 Haloperidol2528 (11.1)336 (6.1)933 (10.5)1259 (15.2)<0.01
 Quetiapine2567 (11.3)321 (5.9)941 (10.6)1305 (15.7)<0.01
 Risperidone538 (2.4)73 (1.3)203 (2.3)262 (3.2)<0.01
  • Data presented as n (%) or as median (IQR). Only % person-days presented as mean (SD).

  • *P-value by Χ2 or Fisher’s exact tests for categorical variables, and by Kruskal-Wallis test for continuous variables.

  • AAP, acetaminophen; MED, morphine-equivalent dose; MV, mechanical ventilation; NMBA, neuromuscular blocking agent; NSAID, non-steroidal anti-inflammatory drug.