Results: senic2.sas

Open SENIC Data

Descriptive stats with better labels

The FREQ Procedure

The Freq Procedure

Table mschool * mdschl

Cross-Tabular Freq Table

Frequency
Table of mschool by mdschl
mschool mdschl(Medical school affiliation)
  No Yes Total
.
4
0
0
4
0
0
80
0
80
1
0
0
16
16
Total
4
80
16
100

Open SENIC Data

Descriptive stats with better labels

The FREQ Procedure

The Freq Procedure

Table ne * region

Cross-Tabular Freq Table

Frequency
Table of ne by region
ne region(Region of U.S.A.)
Northeast North Central South West Total
No
0
31
30
15
76
Yes
24
0
0
0
24
Total
24
31
30
15
100

Table nc * region

Cross-Tabular Freq Table

Frequency
Table of nc by region
nc region(Region of U.S.A.)
Northeast North Central South West Total
No
24
0
30
15
69
Yes
0
31
0
0
31
Total
24
31
30
15
100

Table s * region

Cross-Tabular Freq Table

Frequency
Table of s by region
s region(Region of U.S.A.)
Northeast North Central South West Total
No
24
31
0
15
70
Yes
0
0
30
0
30
Total
24
31
30
15
100

Table w * region

Cross-Tabular Freq Table

Frequency
Table of w by region
w region(Region of U.S.A.)
Northeast North Central South West Total
No
24
31
30
0
85
Yes
0
0
0
15
15
Total
24
31
30
15
100

Open SENIC Data

Frequency distributions of categorical variables

The FREQ Procedure

The Freq Procedure

Table region

One-Way Frequencies

Region of U.S.A.
region Frequency Percent Cumulative
Frequency		 Cumulative
Percent
Northeast 24 24.00 24 24.00
North Central 31 31.00 55 55.00
South 30 30.00 85 85.00
West 15 15.00 100 100.00

Table mdschl

One-Way Frequencies

Medical school affiliation
mdschl Frequency Percent Cumulative
Frequency		 Cumulative
Percent
Frequency Missing = 4
No 80 83.33 80 83.33
Yes 16 16.67 96 100.00

Table agecat

One-Way Frequencies

Average patient age
agecat Frequency Percent Cumulative
Frequency		 Cumulative
Percent
Frequency Missing = 1
53 & under 49 49.49 49 49.49
Over 53 50 50.51 99 100.00

Table nc

One-Way Frequencies

nc Frequency Percent Cumulative
Frequency		 Cumulative
Percent
No 69 69.00 69 69.00
Yes 31 31.00 100 100.00

Table ne

One-Way Frequencies

ne Frequency Percent Cumulative
Frequency		 Cumulative
Percent
No 76 76.00 76 76.00
Yes 24 24.00 100 100.00

Table s

One-Way Frequencies

s Frequency Percent Cumulative
Frequency		 Cumulative
Percent
No 70 70.00 70 70.00
Yes 30 30.00 100 100.00

Table w

One-Way Frequencies

w Frequency Percent Cumulative
Frequency		 Cumulative
Percent
No 85 85.00 85 85.00
Yes 15 15.00 100 100.00

The SGPlot Procedure

The SGPlot Procedure

The SGPlot Procedure

The SGPlot Procedure

The SGPlot Procedure

The SGPlot Procedure

Open SENIC Data

Table of means and standard deviations

The MEANS Procedure

The Means Procedure

Summary statistics

Variable Label N Mean Std Dev Minimum Maximum
census
nbeds
nurses
lngstay
age
xratio
culratio
infpercent
quality
Aver # patients in hospital per day
Average # beds during study period
Aver # nurses during study period
Av length of hospital stay, in days
Average patient age
# x-rays / # no signs of pneumonia
# cultures / # no hosp acq infect
Percent acquiring infection in hospital
Jerry's bogus hospital quality index
100
100
97
100
99
100
100
96
97
192.4100000
252.8800000
175.3505155
9.6921000
53.1989899
81.6200000
15.6300000
4.3135417
971.8024742
158.2452447
197.9572589
138.1400287
1.9905663
4.4655026
19.8599948
10.4661793
1.3521616
687.4104556
20.0000000
29.0000000
14.0000000
6.7000000
38.8000000
39.6000000
1.6000000
1.3000000
194.8300000
791.0000000
835.0000000
656.0000000
19.5600000
65.9000000
133.5000000
60.5000000
7.8000000
3562.86

Open SENIC Data

A close look at infection percent

The UNIVARIATE Procedure

Variable: infpercent (Percent acquiring infection in hospital)

The Univariate Procedure

infpercent

Moments

Moments
N 96 Sum Weights 96
Mean 4.31354167 Sum Observations 414.1
Std Deviation 1.35216161 Variance 1.82834101
Skewness -0.1127617 Kurtosis -0.0831037
Uncorrected SS 1959.93 Corrected SS 173.692396
Coeff Variation 31.3469003 Std Error Mean 0.13800442

Basic Measures of Location and Variability

Basic Statistical Measures
Location Variability
Mean 4.313542 Std Deviation 1.35216
Median 4.450000 Variance 1.82834
Mode 4.500000 Range 6.50000
    Interquartile Range 1.85000

Tests For Location

Tests for Location: Mu0=0
Test Statistic p Value
Student's t t 31.25655 Pr > |t| <.0001
Sign M 48 Pr >= |M| <.0001
Signed Rank S 2328 Pr >= |S| <.0001

Tests For Normality

Tests for Normality
Test Statistic p Value
Shapiro-Wilk W 0.985367 Pr < W 0.3657
Kolmogorov-Smirnov D 0.083091 Pr > D 0.0990
Cramer-von Mises W-Sq 0.084928 Pr > W-Sq 0.1831
Anderson-Darling A-Sq 0.48589 Pr > A-Sq 0.2282

Quantiles

Quantiles (Definition 5)
Level Quantile
100% Max 7.80
99% 7.80
95% 6.40
90% 5.80
75% Q3 5.25
50% Median 4.45
25% Q1 3.40
10% 2.50
5% 1.80
1% 1.30
0% Min 1.30

Extreme Observations

Extreme Observations
Lowest Highest
Value Obs Value Obs
1.3 25 6.4 44
1.4 57 6.5 64
1.6 62 6.6 95
1.7 11 7.7 61
1.8 85 7.8 52

Missing Values

Missing Values
Missing
Value		 Count Percent Of
All Obs Missing Obs
. 4 4.00 100.00

Plots for infpercent

Plots for infpercent

Open SENIC Data

Infection Risk by Region

The Boxplot Procedure

infpercent

Panel 1

Box Plot for infpercent