lowbackpain {flexord} | R Documentation |
Low Back Pain Diagnoses and Diagnosis Criteria
Description
In a 2011 study, Smart et al. (2011) collected information on 464 Irish and British patients suffering from low back pain regarding:
the type of low back pain (classified into "nociceptive", "peripheral neuropathic", and "central neuropathic")
the presence/absence of 38 clinical criteria and symptoms relating to low back pain.
Fop et al. (2017) conducted Latent Class Analysis on this data set to retrieve the experts' classifications; and by comparing nested models they were able to select 11 out of 38 criteria which contain the most of the relevant grouping information while avoiding redundancy.
Usage
data('lowbackpain')
Format
A list containing:
- data:
A 464x11 binary matrix indicating the presence/absence of the 11 selected criteria for each of the 464 patients.
- group:
A factor of length 464 indicating the diagnosis each patient received, numerically coded (order has no meaning).
- index:
The index for the criteria explaining which symptom they refer to.
Source
Supplemental Content for Fop et al. (2017): doi:10.1214/17-AOAS1061SUPP
References
Fop, M, Smart, K, Murphy, TB (2017). Variable Selection for Latent Class Analysis with Application to Low Back Pain Diagnosis. The Annals of Applied Statitics. 11(4), 2080-2110. doi:10.1214/17-aoas1061
Smart, K, Blake, C, Staines, A, Doody, C (2011). The Discriminative Validity of "Nociceptive", "Peripheral Neuropathic", and "Central Sensitization" as Mechanisms-Based Classifications of Musculoskeletal Pain. The Clinical Journal of Pain. 27, 655-663. doi:10.1097/AJP.0b013e318215f16a