EPIDEMIOLOGY4
From the analysis of the computerised liner regression line it can be found that the equation
of the best fit line is y = 0.0157x + 3.6437 and as per the computerised calculation the R2
value is 0.4737. Therefore Pearson coefficient of the correlation r is squire root of R2 .
Hence, Pearson’s Product Moment Correlation Coefficient r= 0.703
For the manual calculation of the Pearson coefficient of the correlation r, the following table
has been developed (Agudelo-Castaneda et al., 2017)
Total
number
of
children
with
asthmati
c wheeze
Total
number
of
children
attending
the clinic
that day
percentag
e of
children
with
asthmatic
wheeze
Ambient
atmospheric
particulates
(PM10 in
μg/m3)
Y X Y square X square XY
11 420 2.619 40 6.85941 1600 104.7619
8 230 3.478 45 12.0983 2025 156.5217
11 190 5.789 90 33.51801 8100 521.0526
24 550 4.364 60 19.04132 3600 261.8182
31 643 4.821 50 23.2435 2500 241.0575
39 710 5.493 60 30.17258 3600 329.5775
39 560 6.964 360 48.50128 129600 2507.143
26 302 8.609 320 74.11956 102400 2754.967
19 200 9.500 110 90.25 12100 1045
31 587 5.281 70 27.88991 4900 369.6763
22 589 3.735 80 13.9513 6400 298.8115
21 632 3.323 64 11.0409 4096 212.6582
14 585 2.393 50 5.727226 2500 119.6581
27 602 4.485 50 20.11567 2500 224.2525
22 320 6.875 130 47.26563 16900 893.75
16 245 6.531 220 42.6489 48400 1436.735
24 558 4.301 100 18.49925 10000 430.1075
26 570 4.561 60 20.8064 3600 273.6842
29 603 4.809 40 23.12924 1600 192.3715
28 555 5.045 40 25.45248 1600 201.8018
31 599 5.175 100 26.78365 10000 517.5292
17 197 8.629 160 74.46726 25600 1380.711
16 197 8.122 190 65.96408 36100 1543.147
26 520 5.000 80 25 6400 400

+13062052269

info@desklib.com

The prevalence of asthma wheeze

Contribute Materials

Related Documents

Health Exercises - Desklib