Table 5 –

RAI^a Therapy and outcomes for patients with cN0^b papillary thyroid carcinoma.

Post operation Data	CND(+)c	CND(−)c	P value
Adjuvant RAI Therapy - Given	46%	34%	0.268
Evidence of Recurrence or Distant Metastasis	7%	8%	0.855
Evidence of Persistent Disease	7%	10%	0.614
Adjuvant RAI Therapy - Not Given	31%	33%
Evidence of Recurrence or Distant Metastasis	16%	1%	< 0.001
Evidence of Persistent Disease	16%	2%	0.009
Adjuvant RAI Therapy - Unknown	23%	33%

^aRAI = radioactive iodine

^bcN0 = no clinically-evident nodal metastasis

^cCND = central neck dissection