A non-response analysis of 2-year data in the Swedish Knee Ligament Register
Reinholdsson, John ; Kraus-Schmitz, Jesper LU
; Forssblad, Magnus
; Edman, Gunnar
; Byttner, Martina
and Stålman, Anders
(2017)
In Knee Surgery, Sports Traumatology, Arthroscopy
25.
p.2481-2487
- Abstract
Purpose: To analyse the non-response group in the Swedish Knee Ligament Register (SKLR). Methods: All 3588 patients in the SKLR who had undergone anterior cruciate ligament surgery in 2010 were included. Respondents (n = 1865) and non-respondents (n = 1723) at the 2-year follow-up survey were assessed for potential differences in demographics and baseline data. KOOS/EQ5D questionnaires were sent to non-respondents together with a non-response survey asking questions about reasons for dropout. Results: Respondents had a significantly higher mean age (27.8 years, range 9–64) than non-respondents (25.9 years, range 12–65) (p < 0.001). Women had a higher rate of response 927 (62.8 %) than men 938 (44.4 %) even after correction for age (p... (More)
Purpose: To analyse the non-response group in the Swedish Knee Ligament Register (SKLR). Methods: All 3588 patients in the SKLR who had undergone anterior cruciate ligament surgery in 2010 were included. Respondents (n = 1865) and non-respondents (n = 1723) at the 2-year follow-up survey were assessed for potential differences in demographics and baseline data. KOOS/EQ5D questionnaires were sent to non-respondents together with a non-response survey asking questions about reasons for dropout. Results: Respondents had a significantly higher mean age (27.8 years, range 9–64) than non-respondents (25.9 years, range 12–65) (p < 0.001). Women had a higher rate of response 927 (62.8 %) than men 938 (44.4 %) even after correction for age (p < 0.001). Alpine/telemark skiing was the only activity at time of injury that showed higher rate of respondents 280 (62.5 %) compared to non-respondents 168 (37.5 %) (p < 0.001). No differences in EQ5D at 2-year follow-up were found between the groups. The change in KOOS from 0 to 2 years showed difference in the subscale pain with 9.4 in the response group compared to 6.3 in the late-response group (p < 0.05) and the subscale quality of life with a difference of 26.1 and 22.6, respectively (p < 0.05). The non-response questionnaire showed shortcomings in patient information regarding the importance of the SKLR. Conclusion: The register is valid concerning baseline surgical data, but higher age, female gender and perhaps higher socioeconomic status improve the response rates. KOOS showed small differences of questionable clinical significance. The SKLR patient information could be improved. Level of evidence: Retrospective comparative study, Level III.
(Less)
- author
- Reinholdsson, John
; Kraus-Schmitz, Jesper
LU
; Forssblad, Magnus
; Edman, Gunnar
; Byttner, Martina
and Stålman, Anders
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- ACL reconstruction, Non-response analysis, Outcome data, Register
- in
- Knee Surgery, Sports Traumatology, Arthroscopy
- volume
- 25
- pages
- 2481 - 2487
- publisher
- Springer
- external identifiers
-
- pmid:26724828
- scopus:84952659172
- ISSN
- 0942-2056
- DOI
- 10.1007/s00167-015-3969-x
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2016, European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA).
- id
- acd41e53-5d79-47e9-9756-04f1cb5b1015
- date added to LUP
- 2022-09-11 20:07:05
- date last changed
- 2024-06-14 18:02:33
@article{acd41e53-5d79-47e9-9756-04f1cb5b1015,
abstract = {{<p>Purpose: To analyse the non-response group in the Swedish Knee Ligament Register (SKLR). Methods: All 3588 patients in the SKLR who had undergone anterior cruciate ligament surgery in 2010 were included. Respondents (n = 1865) and non-respondents (n = 1723) at the 2-year follow-up survey were assessed for potential differences in demographics and baseline data. KOOS/EQ5D questionnaires were sent to non-respondents together with a non-response survey asking questions about reasons for dropout. Results: Respondents had a significantly higher mean age (27.8 years, range 9–64) than non-respondents (25.9 years, range 12–65) (p < 0.001). Women had a higher rate of response 927 (62.8 %) than men 938 (44.4 %) even after correction for age (p < 0.001). Alpine/telemark skiing was the only activity at time of injury that showed higher rate of respondents 280 (62.5 %) compared to non-respondents 168 (37.5 %) (p < 0.001). No differences in EQ5D at 2-year follow-up were found between the groups. The change in KOOS from 0 to 2 years showed difference in the subscale pain with 9.4 in the response group compared to 6.3 in the late-response group (p < 0.05) and the subscale quality of life with a difference of 26.1 and 22.6, respectively (p < 0.05). The non-response questionnaire showed shortcomings in patient information regarding the importance of the SKLR. Conclusion: The register is valid concerning baseline surgical data, but higher age, female gender and perhaps higher socioeconomic status improve the response rates. KOOS showed small differences of questionable clinical significance. The SKLR patient information could be improved. Level of evidence: Retrospective comparative study, Level III.</p>}},
author = {{Reinholdsson, John and Kraus-Schmitz, Jesper and Forssblad, Magnus and Edman, Gunnar and Byttner, Martina and Stålman, Anders}},
issn = {{0942-2056}},
keywords = {{ACL reconstruction; Non-response analysis; Outcome data; Register}},
language = {{eng}},
pages = {{2481--2487}},
publisher = {{Springer}},
series = {{Knee Surgery, Sports Traumatology, Arthroscopy}},
title = {{A non-response analysis of 2-year data in the Swedish Knee Ligament Register}},
url = {{http://dx.doi.org/10.1007/s00167-015-3969-x}},
doi = {{10.1007/s00167-015-3969-x}},
volume = {{25}},
year = {{2017}},
}