Table 4.

Multiple comparisons of Kaplan-Meier curves conducted by Sidak correction.

Serum calcium concentrations (mg/dL)			p value
<8.5	To	8.5~10.5	<0.0001
<8.5		≧10.5	0.0134
8.5~10.5		≧10.5	<0.0001
Serum PTH concentrations (pg/mL)
<150	To	150~300	<0.0001
<150		300~600	<0.0001
<150		≧600	<0.0001
150~300		300~600	0.0021
150~300		≧600	0.1231
300~600		≧600	0.1223

PTH, parathyroid hormone.