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Table 4 Generalized estimating equation (GEE) for systolic blood pressure and diastolic blood pressure (N = 70)

From: Effect of acupressure on pain intensity and physiological indices in patients undergoing extracorporeal shock wave lithotripsy: a randomized double-blind sham-controlled clinical trial

Variables

Systolic blood pressure

Diastolic blood pressure

Estimate (95% CI)

P-value*

Estimate (95% CI)

P-value

Group

-0.841 (-7.604 to 5.921)

0.807

-0.575 (-5.347 to 4.197)

0.813

Follow‐up time

 t1 (1 min vs. pre‐test)

-6.205 (-11.097 to -1.314)

0.013

-1.852 (-4.394 to 0.688)

0.153

 t2 (10 min vs. pre‐test)

-6.088 (-10.979 to -1.196)

0.015

-3.117 (-5.659 to -0.576)

0.016

 t3 (20 min vs. pre‐test)

-3.029 (-7.921 to 1.862)

0.225

-2.529 (-5.070 to 0.012)

0.051

 t4 (30 min vs. pre‐test)

12.058 (7.167 to 16.950)

< 0.001

5.235 (-2.693 to 7.776)

< 0.001

 t5 (40 min vs. pre‐test)

-0.647 (-5.538 to 4.244)

0.795

-0.323 (-2.864 to 2.217)

0.803

 t6 (50 min vs. pre‐test)

-8.0 (-12.891 to -3.108)

0.001

-4.882 (-7.423 to -2.340)

< 0.001

Group × Time

 Group × 1 min

-2.488 (-9.309 to 4.332)

0.475

-1.591 (-5.135 to 1.952)

0.379

 Group × 10 min

-2.745 (-9.566 to 4.076)

0.430

-0.271 (-3.815 to 3.272)

0.881

 Group × 20 min

0.501 (-6.319 to 7.322)

0.885

1.473 (-2.070 to 5.017)

0.415

 Group × 30 min

-7.336 (-14.157 to -0.515)

0.035

-3.235 (-6.779 to 0.308)

0.074

 Group × 40 min

-0.825 (-7.646 to 5.995)

0.813

0.490 (-3.053 to 4.034)

0.786

 Group × 50 min

-0.583 (-7.404 to 6.237)

0.867

-0.367 (-3.911 to 3.176)

0.839

  1. *p < 0.05 was considered statistically significant; Boldface indicates the P value is significant