Table 3.
Satisfaction and understanding end expectations of care by treatment group. Values are numbers (percentages) unless stated otherwise
| Outcome measures | BCT | BCT+ultrasound-triamcinolone-lidocaine | BCT+ultrasound-lidocaine | Effect size (95% CI) | |
|---|---|---|---|---|---|
| BCT+ultrasound-triamcinolone-lidocaine v BCT | BCT+ultrasound-triamcinolone-lidocaine v BCT-ultrasound-lidocaine | ||||
| Rating of overall results of care * | |||||
| 2 months | 5 (3), n=50 | 7 (3), n=57 | 6 (3), n=61 | 2.51 (1.40 to 3.61)† | 1.43 (0.38 to 2.47)‡ |
| 6 months | 5 (3), n=51 | 7 (3), n=55 | 6 (3), n=58 | 1.60 (0.50 to 2.71)‡ | 0.15 (−0.91 to 1.21) |
| Satisfaction with information received | |||||
| 2 months: | |||||
| Very satisfied§ | 15 (27) | 35 (56) | 28 (46) | RR=1.35 (1.10 to 1.64)‡ | RR=1.15 (0.99 to 1.34) |
| Quite satisfied§ | 23 (41) | 21 (34) | 20 (33) | RD=24 (7 to 44) | RD=12 (−1 to 27) |
| No opinion | 5 (9) | 1 (2) | 5 (8) | NNT=5 (2 to 15) | NNT=8 (4 to −100) |
| Not very satisfied | 6 (11) | 3 (5) | 7 (11) | ||
| Not at all satisfied | 7 (12) | 2 (3) | 1 (2) | ||
| 6 months: | |||||
| Very satisfied§ | 12 (23) | 23 (40) | 29 (48) | RR=1.19 (0.91 to 1.56) | RR=1.15 (0.94 to 1.40) |
| Quite satisfied§ | 20 (39) | 19 (33) | 21 (35) | RD=12 (−6 to 35) | RD=16 (−5 to 33) |
| No opinion | 8 (15) | 8 (14) | 6 (10) | NNT=9 (3 to −17) | NNT=6 (3 to −20) |
| Not very satisfied | 9 (17) | 6 (10) | 4 (7) | ||
| Not at all satisfied | 3 (6) | 2 (3) | 0 (0) | ||
| Understanding of hip problem | |||||
| 2 months: | |||||
| Very clear§ | 19 (34) | 25 (40) | 29 (47) | RR=1.01 (0.87 to 1.17) | RR=1.02 (0.89 to 1.17) |
| Quite clear§ | 29 (52) | 29 (47) | 24 (39) | RD=1 (−11 to 14) | RD=2 (−10 to 15) |
| No opinion | 2 (4) | 1 (2) | 5 (8) | NNT=100 (8 to −9) | NNT=50 (7 to −10) |
| Not very clear | 6 (11) | 7 (11) | 4 (6) | ||
| 6 months: | |||||
| Very clear§ | 18 (35) | 22 (38) | 24 (40) | RR=0.98 (0.81 to 1.18) | RR=0.88 (0.76 to 1.03) |
| Quite clear§ | 24 (46) | 24 (41) | 30 (50) | RD=−2 (−15 to 15) | RD=−11 (−22 to 3) |
| No opinion | 5 (10) | 5 (9) | 1 (2) | NNT=−50 (7 to −7) | NNT=−9 (33 to −5) |
| Not very clear | 5 (10) | 7 (12) | 5 (8) | ||
| Patient still has questions about their hip problem | |||||
| 2 months: | RR=1.19 (0.76 to 1.82) | RR=1.16 (0.76 to 1.75) | |||
| No§ | 30 (55) | 37 (61) | 33 (54) | RD=10 (−13 to 45) | RD=9 (−13 to 41) |
| Yes | 25 (45) | 24 (39) | 28 (46) | NNT=10 (2 to −8) | NNT=11 (2 to −8) |
| 6 months: | RR=0.96 (0.65 to 1.43) | RR=1.14 (0.80 to 1.61) | |||
| No§ | 27 (52) | 28 (49) | 26 (43) | RD=−2 (−18 to 22) | RD=6 (−9 to 26) |
| Yes | 25 (48) | 29 (51) | 34 (57) | NNT=−50 (5 to −6) | NNT=17 (4 to −11) |
| Patient has been kept from their usual activities because of hip pain | |||||
| 2 months: | |||||
| No§ | 25 (45) | 40 (67) | 32 (52) | RR=1.79 (1.15 to 2.70)‡ | RR=1.41 (0.91 to 2.22) |
| Yes | 31 (55) | 20 (33) | 30 (48) | RD=36 (7 to 77) | RD=21 (−5 to 63) |
| If yes, how prepared patient feels about returning to normal activities and work: | NNT=3 (1 to 14) | NNT=5 (2 to −20) | |||
| Very prepared | 1 | 9 | 1 | ||
| Quite prepared | 8 | 11 | 9 | ||
| No opinion | 15 | 8 | 7 | ||
| Not very prepared | 10 | 10 | 14 | ||
| Not at all prepared | 4 | 2 | 4 | ||
| 6 months: | |||||
| No§ | 25 (47) | 27 (49) | 28 (47) | RR=1.15 (0.79 to 1.69) | RR=1.08 (0.76 to 1.54) |
| Yes: | 28 (53) | 28 (51) | 31 (53) | RD=7 (−10 to 32) | RD=4 (−11 to 25) |
| Very prepared | 3 | 5 | 4 | NNT=14 (3 to −10) | NNT=25 (4 to −9) |
| Quite prepared | 8 | 6 | 11 | ||
| No opinion | 17 | 10 | 12 | ||
| Not very prepared | 7 | 12 | 9 | ||
| Not at all prepared | 4 | 4 | 5 | ||
| Satisfaction with care received | |||||
| 2 months: | |||||
| Very satisfied§ | 6 (12) | 27 (47) | 14 (23) | RR=1.97 (1.33 to 2.93)‡ | RR=1.61 (1.17 to 2.21)‡ |
| Quite satisfied§ | 13 (25) | 14 (25) | 14 (23) | RD=36 (12 to 71) | RD=28 (8 to 56) |
| No opinion | 15 (29) | 9 (16) | 22 (36) | NNT=3 (1 to 8) | NNT=4 (2 to 13) |
| Not very satisfied | 10 (20) | 5 (9) | 7 (11) | ||
| Not at all satisfied | 7 (14) | 2 (3) | 5 (8) | ||
| 6 months: | |||||
| Very satisfied§ | 6 (11) | 15 (27) | 17 (30) | RR=1.72 (1.11 to 2.66)¶ | RR=0.93 (0.69 to 1.25) |
| Quite satisfied§ | 12 (23) | 17 (31) | 19 (33) | RD=24 (4 to 56) | RD=−4 (−20 to 16) |
| No opinion | 20 (39) | 12 (22) | 15 (26) | NNT=4 (2 to 25) | NNT=−25 (6 to −5) |
| Not very satisfied | 10 (19) | 7 (13) | 6 (11) | ||
| Not at all satisfied | 4 (8) | 4 (7) | 0 (0) | ||
| Patient would have same care again if they had same condition | |||||
| 2 months: | |||||
| Definitely§ | 4 (8) | 26 (45) | 16 (26) | RR=2.41 (1.53 to 3.80)† | RR=1.45 (1.07 to 1.96) ¶ |
| Probably§ | 11 (22) | 15 (26) | 14 (23) | RD=42 (16 to 84) | RD=22 (3 to 47) |
| No opinion | 16 (31) | 11 (19) | 14 (23) | NNT=2 (1 to 6) | NNT=5 (2 to 33) |
| Probably not | 12 (23) | 4 (7) | 11 (18) | ||
| Definitely not | 8 (16) | 2 (3) | 6 (10) | ||
| 6 months: | |||||
| Definitely§ | 6 (12) | 18 (33) | 17 (29) | RR=1.89 (1.22 to 2.92)‡ | RR=1.06 (0.80 to 1.40) |
| Probably§ | 11 (22) | 17 (31) | 19 (33) | RD=30 (7 to 65) | RD=4 (−12 to 25) |
| No opinion | 20 (41) | 10 (19) | 10 (17) | NNT=3 (2 to 14) | NNT=25 (4 to −8) |
| Probably not | 7 (14) | 5 (9) | 7 (12) | ||
| Definitely not | 5 (10) | 4 (7) | 5 (9) | ||
| Expectations for pain relief met | |||||
| 2 months: | |||||
| Probably met§ | 15 (28) | 32 (56) | 22 (35) | RR=1.52 (1.10 to 2.10)¶ | RR=1.26 (0.95 to 1.67) |
| No opinion§ | 11 (21) | 8 (14) | 13 (21) | RD=25 (5 to 54) | RD=15 (−3 to 38) |
| Not met | 20 (38) | 12 (21) | 19 (31) | NNT=4 (2 to 20) | NNT=7 (3 to −33) |
| Definitely not met | 7 (13) | 5 (9) | 8 (13) | ||
| 6 months: | |||||
| Probably met§ | 17 (33) | 25 (44) | 22 (37) | RR=1.35 (0.99 to 1.84) | RR=1.29 (0.95 to 1.73) |
| No opinion§ | 10 (20) | 13 (23) | 9 (15) | RD=19 (−1 to 45) | RD=15 (−3 to 38) |
| Not met | 15 (29) | 13 (23) | 20 (34) | NNT=5 (2 to −100) | NNT=7 (3 to −33) |
| Definitely not met | 9 (18) | 6 (10) | 8 (14) | ||
| Perceived treatment allocation (injection type) | |||||
| Unsure | — | 54 (86) | 50 (81) | — | — |
| Guessed correctly | — | 9 (14) | 2 (3) | — | — |
| Guessed incorrectly | — | 0 (0) | 10 (16) | — | — |
SD=standard deviation; BCT=best current treatment; CI=confidence interval; RR=relative risk; RD=percentage risk difference (derived as product of RR and observed positive proportion in BCT group (rounded to nearest integer and converted to percentage) minus observed positive percentage in BCT group); NNT=number needed to treat (=100/RD (rounded to nearest integer)).
For numerical outcomes, effects shown are mean differences (summarised by mean (SD) scores).
P values were for analyses by linear or generalised mixed models accounting for repeated measures and adjusted for age, sex, baseline pain, and (when applicable) corresponding baseline value).
*
Rating of overall results of care: 0-10 numerical integer scale (0=terrible, 10=excellent).
†
P<0.001.
‡
P=0.001 to <0.01.
§
For comparative analysis of categorical variables (derivation of RR), categories that were used to define a positive response coded as 1 (other categories denoting a negative response coded 0) according to preagreed rules for dichotomisation of the categorical variables.
¶
P=0.01 to <0.05.