Table 4.

Tukey’s Comparison of Average Time Between Injections, in Days, for KL Grade

KL Grade	Difference	Standard Error	95% CI	p-Value
3 vs 2	−6.95	39.3	−99.6–85.7	0.983
4 vs 2	−107.8	43.7	−211.0 – −4.7	0.038
4 vs 3	−100.9	44.6	−206.1–4.3	0.063

Notes: The values are expressed in days, unless indicated otherwise.

Abbreviations: KL, Kellgren Lawrence; CI, confidence interval.