Hemodynamic Comparisons in Blood Phobic and Control Subjects

Tilt StudiesHR Studies
Blood Phobic Subjects (n=11)Control Subjects (n=11)ANOVA Trend, PBlood Phobic SubjectsControl SubjectsANOVA Trend, P
Start TiltEnd TiltStart TiltEnd TiltBaselineMax HRBaselineMax HR
Max indicates maximum; DBP, diastolic BP; and MBP, mean BP. Values are mean±SD.
*P=0.005,
P<0.05, and
P=0.01 vs start-tilt or baseline measurements;
§P<0.05 for blood phobic vs control subjects.
SBP, mm Hg111±1290±20*112±9110±15§0.005108±9108±12108±7115±16NS
DBP, mm Hg70±761±1574±765±14NS64±861±1166±768±11NS
MBP, mm Hg83±870±1687±780±14NS79±877±1080±684±11NS
HR, bpm88±1367±2583±1485±10§0.00470±11103±14*69±1294±13*0.05