The impact of factor infusion frequency on health-related quality of life in people with haemophilia
15 sie 2020
O artykule
Kategoria artykułu: Clinical Research
Data publikacji: 15 sie 2020
Zakres stron: 102 - 109
DOI: https://doi.org/10.17225/jhp00158
Słowa kluczowe
© 2020 Gabriel Pedra et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig. 1

Results of the regression analysis (coefficients, 95% confidence intervals)Values >1_0 represent positive associations (e_g_ having a target joint is strongly associated with major bleeds); values <1_0 represent negative associations (e_g_ having haemophilia B is negatively associated with major bleeds)
(Intercept) | 1.6536 | 1.5907 | 2.4910 | 2.4330 | 0.2292 | 0.2959 |
Age | 0.9981 (0.9956, 1.0006) | — | 0.9984 (0.9927, 1.004) | — | 1.0199 | 1.0214 |
Having a target joint | 0.9679 (0.9147, 1.0242) | — | 1.6486 | 1.6573 | 2.2315 | 2.3001 |
Primary prophylaxis (vs secondary) | 1.0497 | 1.0447 | 0.9601 (0.8439, 1.0938) | — | 0.9992 (0.7624, 1.3190) | — |
Number of concomitant diseases | 1.0051 (0.9790, 1.0324) | — | 1.0298 (0.9740, 1.0873) | — | 1.0356 (0.9330, 1.1451) | — |
Number of hospitalisations | 0.9647 | 0.9612 | 1.0712 | 1.0683 | 1.0588 (0.9920, 1.1266) | 1.0541 (0.9901, 1.1181) |
High adherence | 0.9917 (0.9446, 1.0411) | — | 0.8554 | 0.8463 | 0.6817 | 0.6723 |
Having haemophilia B | 0.9996 (0.9275, 1.0790) | — | 1.0222 (0.853, 1.2179) | — | 0.6977 (0.4408, 1.0620) | 0.6877 (0.4345, 1.0435) |
Increasing infusion rate/year | 0.9999 (0.9989, 1.0009) | 0.9997 (0.9988, 1.0007) | 0.9968 | 0.9967 | 0.9977 ((0.9885, 1.0073) | 0.9955 |
Mild chronic pain | 0.9271 (0.7602, 1.1201) | 0.8824 (0.7349, 1.0577) | 1.0762 (0.6296, 1.9593) | 1.0988 (0.6300, 1.9316) | 2.6814 (0.6259, 12.7098) | 2.1879 |
Moderate chronic pain | 0.8994 (0.6869, 1.1756) | 0.8344 (0.6590, 1.0556) | 1.8156 | 1.8877 | 4.2172 | 3.308 |
Severe chronic pain | 0.1826 | 0.1788 | 2.5249 (0.6292, 9.6216) | 3.6750 | 4.3910 (0.4313, 45.1077) | 3.8228 |
Infusion rate/year | 1.0000 (0.9987, 1.0014) | 1.0002 (0.9989, 1.0016) | 1.0023 (0.9981, 1.0065) | 1.0024 (0.9982, 1.0065) | 0.9983 (0.9872, 1.0094) | — |
Infusion rate/year | 0.9996 (0.998, 1.0012) | 0.9999 (0.9985, 1.0014) | 0.9968 (0.9968, 1.0048) | 1.0007 (0.9967, 10046) | 1.0007 (0.9967, 10046) | — |
Infusion rate/year | 1.0045 | 1.0045 | 0.9950 (0.9853, 1.0046) | 0.9928 | 0.9978 (0.9819, 1.10135) | — |
Demographics of the study group (n=48)
Age | mean (SD) | 30.86 (12.07) | 35.94 (14.70) |
median (range) | 27 (18–67) | 32 (18–88) | |
Haemophilia type | A | 283 (84%) | 996 (77.5%) |
B | 55 (16%) | 289 (22.5%) | |
Number of patients with target joint | Yes | 200 (59.2%) | 768 (59.8%) |
No | 138 (40.8%) | 517 (40.2%) | |
Number of comorbidities | mean (SD) | 0.80 (1.28) | 0.94 (1.33) |
median | 0 (0–12) | 1 (0–12) | |
Number of admissions | mean (SD) | 0.61 (1.43) | 0.76 (1.46) |
median | 0 (0–15) | 0 (0–15) | |
Treatment strategy | primary PPX | 123 (36%) | 217 (16.9%) |
secondary PPX | 215 (64%) | 1068 (83.1%) | |
Number of prescribed infusions per year | mean (SD) | 134.45 (42.40) | 124.30 (50.05) |
median | 156 (52–364) | 136.71 (52–364) | |
Weekly infusion rate | 1 | 30 (9%) | 145 (21%) |
1.4 | 6 (2%) | 10 (1%) | |
2 | 97 (29%) | 198 (29%) | |
3 | 179 (53%) | 276 (40%) | |
3.5 | 19 (6%) | 35 (5%) | |
5 | 5 (1%) | 20 (3%) | |
6 | 1 (<1%) | 4 (1%) | |
7 | 1 (<1%) | 1 (<1%) | |
Adherence | high | 117 (35%) | 773 (60.2%) |
low | 221 (65%) | 512 (39.8%) | |
Chronic pain rating | none | 121 (36%) | 461 (35.9%) |
mild | 139 (41%) | 474 (36.9%) | |
moderate | 71 (21%) | 301 (23.4%) | |
high | 7 (2%) | 49 (3.8%) |