Table 2.

Comparison of calcium, phosphate, and parathyroid hormone concentrations between oral calcitriol and IV vitamin D analog groups during follow-up

Biochemical MeasureStatisticMonths 1–3Months 4–6Months 7–12
Oral CalcitriolIV Vitamin DP ValueaOral CalcitriolIV Vitamin DP ValueaOral CalcitriolIV Vitamin DP Valuea
Calcium, mg/dlN22592258<0.00121182127<0.00119872006<0.001
Mean±SD9.09±0.589.25±0.639.05±0.609.21±0.629.10±0.589.22±0.58
Median9.109.279.089.239.109.26
Phosphate, mg/dlN22602258<0.001212021280.02198720060.01
Mean±SD5.10±1.315.25±1.305.12±1.315.24±1.295.12±1.265.22±1.22
Median4.955.105.005.104.975.10
iPTH, pg/dlN21642218<0.00120372078<0.001195519800.002
Mean±SD473±319413±281497±321427±282484±308454±273
Median385343417356411395
  • P values reflect comparisons between oral calcitriol and active IV vitamin D analog group means within each time period. IV, intravenous; iPTH, intact parathyroid hormone.

  • a t test.