Test de Student apparié

L’évolution des moyennes de la volume lobe entre les deux périodes est de 1098.515ml /equivalent à une diminution de ….% . La p-value du test est <0.05. Ainsi, les résultats nous indiquent que le volume lobe des sujets après traitement est significativement différente du volume lobe avant celui-ci, dans le sens d’une decroissance.

t.test(toulouse_total$CV_ml_0 , toulouse_total$CV_ml_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$CV_ml_0 and toulouse_total$CV_ml_1
## t = -4.9894, df = 33, p-value = 1.903e-05
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -726.1612 -305.4859
## sample estimates:
## mean of the differences 
##               -515.8235
t.test(toulouse_total$TLCO_0 , toulouse_total$TLCO_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$TLCO_0 and toulouse_total$TLCO_1
## t = -1.1588, df = 24, p-value = 0.2579
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -4.560933  1.280933
## sample estimates:
## mean of the differences 
##                   -1.64
t.test(toulouse_total$P_pct._0 , toulouse_total$Pi_pct._1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$P_pct._0 and toulouse_total$Pi_pct._1
## t = -4.0244, df = 13, p-value = 0.001444
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -40.28665 -12.14192
## sample estimates:
## mean of the differences 
##               -26.21429
t.test(toulouse_total$SNIP_KPA_0 ,toulouse_total$SNIP_KPA_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$SNIP_KPA_0 and toulouse_total$SNIP_KPA_1
## t = -2.4428, df = 12, p-value = 0.031
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -1.8191564 -0.1039205
## sample estimates:
## mean of the differences 
##              -0.9615385
t.test(toulouse_total$Ci_rest.recalc._0 , toulouse_total$Ci_rest.recalc._1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$Ci_rest.recalc._0 and toulouse_total$Ci_rest.recalc._1
## t = 0.21923, df = 23, p-value = 0.8284
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -224.9615  278.2948
## sample estimates:
## mean of the differences 
##                26.66667
t.test(toulouse_total$CI_pic.recalc_0, toulouse_total$CI_pic.recalc_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$CI_pic.recalc_0 and toulouse_total$CI_pic.recalc_1
## t = -2.6768, df = 23, p-value = 0.01347
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -356.78017  -45.71983
## sample estimates:
## mean of the differences 
##                 -201.25
t.test(toulouse_total$CI_diff.recalc_0 , toulouse_total$CI_diff.recalc_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$CI_diff.recalc_0 and toulouse_total$CI_diff.recalc_1
## t = -1.9896, df = 23, p-value = 0.05866
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -464.89147    9.05814
## sample estimates:
## mean of the differences 
##               -227.9167
t.test(toulouse_total$CI_isoP_0 , toulouse_total$CI_isoP_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$CI_isoP_0 and toulouse_total$CI_isoP_1
## t = -2.5024, df = 23, p-value = 0.01989
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -457.43033  -43.40301
## sample estimates:
## mean of the differences 
##               -250.4167
t.test(toulouse_total$temps_sec_0 , toulouse_total$temps_sec_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$temps_sec_0 and toulouse_total$temps_sec_1
## t = -2.4939, df = 25, p-value = 0.01961
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -141.15142  -13.46396
## sample estimates:
## mean of the differences 
##               -77.30769
t.test(toulouse_total$VO2_max_0, toulouse_total$VO2_max_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$VO2_max_0 and toulouse_total$VO2_max_1
## t = -2.1638, df = 17, p-value = 0.04501
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -0.1354019 -0.0017092
## sample estimates:
## mean of the differences 
##             -0.06855556
t.test(toulouse_total$Wmax_0 , toulouse_total$Wmax_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$Wmax_0 and toulouse_total$Wmax_1
## t = -1.7321, df = 24, p-value = 0.0961
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -8.7663696  0.7663696
## sample estimates:
## mean of the differences 
##                      -4
t.test(toulouse_total$VT_isotime_0 , toulouse_total$VT_isotime_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$VT_isotime_0 and toulouse_total$VT_isotime_1
## t = -3.237, df = 23, p-value = 0.003642
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -383.95358  -84.54642
## sample estimates:
## mean of the differences 
##                 -234.25
t.test(toulouse_total$vt_pic_0 , toulouse_total$vt_pic_1)
## 
##  Welch Two Sample t-test
## 
## data:  toulouse_total$vt_pic_0 and toulouse_total$vt_pic_1
## t = -2.3002, df = 49.541, p-value = 0.02569
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -356.37915  -24.08239
## sample estimates:
## mean of x mean of y 
##  977.6538 1167.8846
t.test(toulouse_total$VRI_isotime_0 , toulouse_total$VRI_isotime_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$VRI_isotime_0 and toulouse_total$VRI_isotime_1
## t = -0.29203, df = 23, p-value = 0.7729
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -130.6870   98.3537
## sample estimates:
## mean of the differences 
##               -16.16667
t.test(toulouse_total$VO2_FC_0 , toulouse_total$VO2_FC_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$VO2_FC_0 and toulouse_total$VO2_FC_1
## t = -1.2109, df = 17, p-value = 0.2425
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -0.7709127  0.2086904
## sample estimates:
## mean of the differences 
##              -0.2811111
t.test(toulouse_total$dist_parc_0 , toulouse_total$dist_parc_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$dist_parc_0 and toulouse_total$dist_parc_1
## t = -1.6635, df = 25, p-value = 0.1087
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -83.497022   8.881637
## sample estimates:
## mean of the differences 
##               -37.30769
t.test(toulouse_total$Nadir_sat_0 , toulouse_total$Nadir_sat_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$Nadir_sat_0 and toulouse_total$Nadir_sat_1
## t = -1.0454, df = 26, p-value = 0.3055
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -4.064895  1.324154
## sample estimates:
## mean of the differences 
##                -1.37037
t.test(toulouse_total$EELV_repos_0 , toulouse_total$EELV_repos_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$EELV_repos_0 and toulouse_total$EELV_repos_1
## t = 1.4224, df = 23, p-value = 0.1683
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -143.1226  773.2059
## sample estimates:
## mean of the differences 
##                315.0417
t.test(toulouse_total$EELV_pic_0 , toulouse_total$EELV_pic_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$EELV_pic_0 and toulouse_total$EELV_pic_1
## t = 3.3069, df = 23, p-value = 0.003079
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  203.3034 882.6133
## sample estimates:
## mean of the differences 
##                542.9583
t.test(toulouse_total$EELV_isoPUISSANCE_0 , toulouse_total$EELV_isoPUISSANCE_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$EELV_isoPUISSANCE_0 and toulouse_total$EELV_isoPUISSANCE_1
## t = 3.1121, df = 23, p-value = 0.004905
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  198.5288 985.7212
## sample estimates:
## mean of the differences 
##                 592.125
t.test(toulouse_total$SNIP_KPA_pct_0 , toulouse_total$SNIP_KPA_pct_1, paired=TRUE)
## 
##  Paired t-test
## 
## data:  toulouse_total$SNIP_KPA_pct_0 and toulouse_total$SNIP_KPA_pct_1
## t = -2.8261, df = 13, p-value = 0.0143
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
##  -20.92113  -2.79316
## sample estimates:
## mean of the differences 
##               -11.85714