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Table 6 Risk factors (diet-based factors) for intervertebral disc disease (IVDD) from univariable analysis (OR = odds ratio, CI = confidence interval)

From: DachsLife 2015: an investigation of lifestyle associations with the risk of intervertebral disc disease in Dachshunds

Variable Category Case Non-Case OR 95 % CI p
Treats- Table scraps No 241 (15.2 %) 1346 (84.8 %) 1 (base)   
Yes 69 (17.8 %) 319 (82.2 %) 1.21 0.90–1.62 0.208
Treats- Other human food No 249 (15.1 %) 1400 (84.9 %) 1 (base)   
Yes 61 (18.7 %) 265 (81.3 %) 1.29 0.95–1.76 0.102
Treats- Dog treats No 137 (15.1 %) 772 (84.9 %) 1 (base)   
Yes 173 (16.2 %) 893 (83.8 %) 1.09 0.86–1.39 0.481
Treats- Biscuits No 206 (16.8 %) 1021 (83.2 %) 1 (base)   
Yes 104 (13.9 %) 644 (86.1 %) 0.80 0.62–1.03 0.088
Treats- Other treats No 236 (15.5 %) 1290 (84.5 %) 1 (base)   
Yes 74 (16.5 %) 375 (83.5 %) 1.08 0.81–1.44 0.603
Diet – Raw (only) No 278 (17.2 %) 1336 (82.8 %) 1 (base)   
Yes 25 (18.1 %) 113 (81.9 %) 0.94 0.60–1.48 0.790
Diet – Complete Dry (only) No 177 (17.1 %) 860 (82.9 %) 1 (base)   
Yes 126 (17.6 %) 589 (82.4 %) 0.962 0.75–1.24 0.763
Diet – Wet (only) No 271 (17.0 %) 1320 (83.0 %) 1 (base)   
Yes 32 (19.9 %) 129 (80.1 %) 0.83 0.55–1.25 0.364
Diet – Raw + Complete Dry No 278 (17.4 %) 1320 (82.6 %) 1 (base)   
Yes 25 (16.2 %) 129 (83.8 %) 1.09 0.70–1.70 0.716
Diet – Raw + Wet No 296 (17.2 %) 1422 (82.8 %) 1 (base)   
Yes 7 (20.6 %) 27 (79.4 %) 0.80 0.35–1.86 0.609
Diet – Complete + Wet No 229 (17.4 %) 1087 (82.6 %) 1 (base)   
Yes 74 (17.0 %) 362 (83.0 %) 1.03 0.77–1.37 0.837
Diet – Raw + Complete + Wet No 289 (17.6 %) 1349 (82.4 %) 1 (base)   
Yes 14 (12.3 %) 100 (87.7 %) 1.53 0.86–2.72 0.146
Supplement – Coconut Oil No 275 (15.6 %) 1486 (84.4 %) 1 (base)   
Yes 30 (18.3 %) 134 (81.7 %) 1.21 0.80–1.83 0.370
Supplement – Glucosamine No 255 (14.3 %) 1527 (85.7 %) 1 (base)   
Yes 50 (35.0 %) 93 (65.0 %) 3.22 2.23–4.65 <0.001
Supplement – Chondroitin No 275 (14.9 %) 1565 (85.1 %) 1 (base)   
Yes 30 (35.3 %) 55 (64.7 %) 3.10 1.95–4.93 <0.001
Supplement – Plaque off No 280 (15.8 %) 1491 (84.2 %) 1 (base)   
Yes 25 (16.2 %) 129 (84.2 %) 1.03 0.66–1.61 0.890
Supplement – Vitamin C No 296 (15.6 %) 1600 (84.4 %) 1 (base)   
Yes 9 (31.0 %) 20 (69.0 %) 2.43 1.10–5.39 0.029
Supplement – Multi Vitamin No 294 (15.6 %) 1585 (84.4 %) 1 (base)   
Yes 11 (23.9 %) 35 (76.1 %) 1.69 0.85–3.37 0.134