Table 8

Pain score reduction at hospital arrival: subgroup analysis of methoxyflurane and intranasal fentanyl use as sole agents

GenderGroupPain reduction on arrival at hospitalPain reduction on arrival at hospitalp Value*Numerical2+ reduction2+ reductionp Value
No MethoxyNo FentanylMethoxy average (95% CI)Fentanyl average (95% CI)Pain reduction on arrival at hospitalDifference in pain reductionMethoxy no (%)Fentanyl no (%)2+ reduction
AllAllAll1752732.51 (2.14 to 2.88)3.18 (2.87 to 3.50)0.0070.67113 (65%)203 (74%)0.027
AetiologyAllAbdominal37502.97 (2.16 to 3.79)3.81 (3.16 to 4.46)0.1200.8427 (73%)42 (84%)0.209
AllRenal27232.67 (1.74 to 3.59)3.24 (2.54 to 3.94)0.3370.5721 (78%)20 (87%)0.400
AllCardiac1112002.32 (1.85 to 2.79)3.02 (2.63 to 3.41)0.0250.7065 (59%)141 (71%)0.033
GenderAllMale761672.51 (1.97 to 3.06)3.06 (2.68 to 3.45)0.1080.5550 (66%)121 (72%)0.291
AllFemale991022.51 (2.00 to 3.02)3.40 (2.86 to 3.95)0.0200.8963 (64%)80 (78%)0.021
Gender and aetiologyMaleAbdominal9262.67 (0.94 to 4.40)3.52 (2.56 to 4.48)0.4130.856 (67%)21 (81%)0.385
MaleRenal15183.33 (2.19 to 4.48)3.47 (2.63 to 4.31)0.8490.1414 (93%)16 (89%)0.658
MaleCardiac521232.25 (1.60 to 2.90)2.91 (2.44 to 3.37)0.1130.6630 (58%)84 (68%)0.179
FemaleAbdominal28233.07 (2.14 to 4.01)3.96 (3.10 to 4.81)0.1780.8921 (75%)20 (87%)0.285
FemaleRenal1251.83 (0.41 to 3.26)2.40 (1.62 to 3.18)0.5050.577 (58%)4 (80%)0.394
FemaleCardiac59742.38 (1.71 to 3.05)3.30 (2.60 to 3.99)0.0660.9235 (59%)56 (76%)0.044
Age groupAll0 to 2915102.80 (1.59 to 4.01)4.30 (3.47 to 5.13)0.0581.5012 (80%)10 (100%)0.132
All30 to 4442363.14 (2.41 to 3.88)3.85 (3.05 to 4.64)0.2060.7032 (76%)32 (89%)0.145
All45 to 5945642.12 (1.27 to 2.98)2.76 (2.17 to 3.35)0.2330.6424 (53%)46 (72%)0.047
All60 to 7439962.79 (2.06 to 3.53)3.11 (2.53 to 3.70)0.5050.3227 (69%)68 (71%)0.853
All75+33671.76 (1.03 to 2.48)3.17 (2.52 to 3.82)0.0061.4117 (52%)47 (70%)0.068
Cardiac 75+ yearsMale10252.20 (1.08 to 3.32)3.36 (2.39 to 4.33)0.1391.166 (60%)17 (68%)0.652
Female9250.33 (–0.84 to 1.51)3.32 (1.97 to 4.67)0.0031.991 (11%)17 (68%)0.003
Unspecified02NA1.50 (–1.44 to 4.44)NANANA1 (50%)NA
Total19521.32 (0.42 to 2.22)3.27 (2.47 to 4.07)0.0031.957 (37%)35 (67%)0.021
  • * t Test.

  • χ2 Test.

  • NA, not applicable.