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Teachingserv wilcoxon rank-sum mann-whitney testteachingserv

type: numeric (float)

range: [2686013,3708268] units: 1

2.8e+06 2.9e+06 3.2e+06 3.5e+06 3.7e+06

--------------------------------------------------------------------------------------

unique values: 65 missing .: 0/239

mean: 72.795

percento2 Percent oxygen inspired

--------------------------------------------------------------------------------------

182 22

4 26

5 62

7 100

range: [8.083334,500.5] units: 1.000e-06

unique values: 239 missing .: 0/239

--------------------------------------------------------------------------------------

hospitalist Hospitalist service

unique values: 2 missing .: 0/239

tabulation: Freq. Numeric Label

--------------------------------------------------------------------------------------

type: numeric (float)

204 0 No

35 1 yes

label: yn

range: [0,1] units: 1

2 .

--------------------------------------------------------------------------------------

range: [0,1] units: 1

unique values: 2 missing .: 6/239

--------------------------------------------------------------------------------------

death Died

unique values: 2 missing .: 0/239

tabulation: Freq. Numeric Label

Percent |

oxygen |

30 | 25 10.46 88.28

32 | 2 0.84 89.12

------------+-----------------------------------

Total | 239 100.00

1% 22 22

5% 22 22

75% 22 100

90% 34 100 Variance 208.0601

service | Freq. Percent Cum.

------------+-----------------------------------

. tab mental

Cognitive |

------------+-----------------------------------

Total | 239 100.00

| frequency |

| expected frequency |

No | 150 32 | 182

| 155.3 26.7 | 182.0

Total | 204 35 | 239

| 204.0 35.0 | 239.0

No | 150 32 | 182

yes | 54 3 | 57

Cramér's V = -0.1485

gamma = -0.5868 ASE = 0.205

Died | Freq. Percent Cum.

------------+-----------------------------------

. tab hospitalist death, expected

+--------------------+

+--------------------+

Hospitalis | Died

-----------+----------------------+----------

yes | 57 0 | 57

. tab hospitalist death, all exact

Hospitalis | Died

-----------+----------------------+----------

Total | 230 9 | 239

Kendall's tau-b = -0.1107 ASE = 0.020

Fisher's exact = 0.120

Percentiles Smallest

1% 24 20

Largest Std. Dev. 15.45459

75% 83 96

Teaching | Freq. Percent Cum.

------------+-----------------------------------

. sort teachingserv

. by teachingserv: sum age, det

Percentiles Smallest

1% 31 31

Largest Std. Dev. 16.12656

75% 83 83

-> teachingserv = yes

Age in years

10% 48 24 Obs 223

25% 66 26 Sum of Wgt. 223

95% 93 97 Skewness -1.111432

99% 97 99 Kurtosis 4.128002

Percentiles Smallest

1% 74 74

Largest Std. Dev. 7.071068

75% 84 .

. sktest age if teachingserv ==0

age | 0.043 0.052 6.90 0.0317

. sktest age if teachingserv ==1

age | 0.000 0.008 31.64 0.0000

. ttest age, by( teachingserv)

No | 14 73.28571 4.310004 16.12656 63.97452 82.59691

yes | 223 72.70852 1.037923 15.4995 70.66308 74.75396

------------------------------------------------------------------------------

Degrees of freedom: 235

. ranksum age, by( teachingserv)

Two-sample Wilcoxon rank-sum (Mann-Whitney) test

-------------+---------------------------------

combined | 237 28203 28203

Ho: age(teachi~v==No) = age(teachi~v==yes)

z = -0.056

LOS in Hours

-------------------------------------------------------------

25% 60.06667 23.86667 Sum of Wgt. 185

50% 88.11667 Mean 113.3379

99% 427.0667 500.5 Kurtosis 6.440586

--------------------------------------------------------------------------------------

1% 31.93333 31.93333

5% 42.05 34.85

75% 105.3167 145.6833

90% 139.25 158.55 Variance 1306.844

Skewness/Kurtosis tests for Normality

------- joint ------

Skewness/Kurtosis tests for Normality

------- joint ------

Variance ratio test

------------------------------------------------------------------------------

---------+--------------------------------------------------------------------

combined | 233 106.8428 5.071763 77.4171 96.85018 116.8354

F = 5.3696 F = 5.3696 F = 5.3696

P < F = 1.0000 2*(P > F) = 0.0000 P > F = 0.0000

---------+--------------------------------------------------------------------

No | 185 113.3379 6.158798 83.7687 101.187 125.4889

diff | 31.52855 8.07197 15.60067 47.45644

------------------------------------------------------------------------------

P < t = 0.9999 P > |t| = 0.0001 P > t = 0.0001

ranksum outcomelos, by(pathway)

yes | 48 4823 5616

-------------+---------------------------------

adjusted variance 173160.00

Ho: outcom~s(pathway==No) = outcom~s(pathway==yes)

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