Table 2.

Correlations of clinical variables with serum creatinine, GFR, and SDMA (estimate [95% confidence interval]), for dogs affected with X‐linked hereditary nephropathy (n = 8) and unaffected (n = 4) littermates

	Serum creatinine		GFR		SDMA
	Affected	Unaffected	Affected	Unaffected	Affected	Unaffected
Age	0.89 (0.74,1) N = 340	0.92 (0.72,1) N = 174	−0.88 (−1, −0.62) N = 84	−0.86 (−1, −0.63) N = 41	0.73 (0.55,0.90) N = 333	−0.23 (−0.55,0.08) N = 166
Weight	0.37 (0.24,0.50) N = 333	0.90 (0.65,1) N = 173	−0.76 (−0.96, −0.55) N = 84	−0.94 (−1, −0.68) N = 41	0.32 (0.20,0.44) N = 328	−0.21 (−0.56,0.13) N = 166
BCS	−0.67 (−0.99, −0.35) N = 157	0.67 (0.31,1) N = 79	0.40 (0.10,0.70) N = 82	−0.71 (−1, −0.25) N = 41	−0.68 (−0.95, −0.41) N = 157	0.14 (−0.32,0.60) N = 76
GFR	−0.98 (−1, −0.80) N = 84	−0.87 (−1, −0.68) N = 41	–	–	–	–
SDMA	0.95 (0.87,1) N = 329	−0.06 (−0.37,0.25) N = 166	−0.95 (−1, −0.72) N = 83	0.34 (0.02,0.65) N = 40	–	–

GFR, glomerular filtration rate; SDMA, symmetric dimethylarginine; BCS, body condition score.