revised outputs8 and 9

8/3/2019 Revised Outputs8 and 9

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DE LA SALLE HEALTH SCIENCES INSTITUTECOLLEGE OF MEDICINE

DEPARTMENT OF FAMILY AND COMMUNITY MEDICINE

CM2 SY 2011-2012

REVISED OUTPUTS 8 & 9: PLAN FOR DATA ANALYSIS

Exposure to Air-conditioning Systems in Classrooms Leads to Mild Severity of Allergic Rhinitis in

Second Year High School Students of Selected Schools in Dasmarias City, Cavite: A Cross-

Sectional Study.

SUBMITTED ON:

January 19, 2012

SUBMITTED TO:

DR. JOVILIA M. ABONG

SUBMITTED BY:

GROUP 1A

ARCAIRA, JOSHUA A.

ABAD, MARY RAINA ANGELI

ANCHETA, JONATHAN

BASUL, CHARINE

CARAVEO, JULIEN NICOLE

CRUZ, SPICA

ESPINOZA, FAITH KRISTINE

GARCIA, RAY WILSON

KALALO, GERARD MICHAEL


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REVISED OUTPUTS 8 & 9: PLAN FOR DATA ANALYSIS

GROUP 1A, DR. JOVILIA M. ABONG

RESEARCH QUESTION:

Among second year high school students with allergic rhinitis of selected schools in Dasmarias, Cavite,

will exposure to air-conditioned school rooms affect the severity of their allergic rhinitis?

RESEARCH OBJECTIVES

General Objective: To determine if the exposure to the air-conditioning system affects the severity

of allergic rhinitis in second year high school students of selected schools in Dasmarias, Cavite.

Specific Objectives:

1. To identify the prevalence of allergic rhinitis among second year high school students of

selected schools in of Dasmarias, Cavite based on their classroom conditions (air-conditioned

vs. non-air-conditioned).2. To determine the severity of allergic rhinitis according to ARIA classifications.

3. To identify the risk factors of allergic rhinitis present in the classroom or school, such as the

presence of molds, chalk dust, house dust, and cockroaches.

4. Compare the severity of allergic rhinitis in students who are exposed to air-conditioned

classrooms and those who are not exposed to air-conditioned classrooms.

RESEARCH DESIGN

A Cross-Sectional type of research design will be implemented in this study to determine if there is a

relationship between exposure to air-conditioning system in the classroom and mild severity allergic

rhinitis.

PLAN FOR DATA ANALYSIS

1. DESCRIPTIVE STATISTICS

A. Measures of Disease Frequency

The data that will be gathered are the number of second year high school students with air-

conditioned and non-air-conditioned classrooms with Allergic Rhinitis as well as the severity of

their condition (mild or moderate-severe).

The measure of disease frequency to be used is point prevalence because by definition, it

indicates the proportion of individuals in a population who have a particular disease at a specified

point in time wherein our population would be second year high school students with allergic

rhinitis and the disease to be measured is the severity of their condition. The frequencies of mild

and moderate-severe allergic rhinitis will be summarized in a frequency distribution table and


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these frequencies will be used to compute for the point prevalence. The frequencies will also be

presented in a bar graph to see the differences easily.

C. Measures of Central Tendencv

The measure of Central Tendency to be used in the study is the Mode because it is primarilyconcerned with the frequency of mild allergic rhinitis in students with and without exposure to

the aforementioned classroom conditions. The mean and median will not be used because they

are not applicable to the study.

D. Measures of Dispersion

Since the data to be gathered will just be prevalence of the severity of allergic rhinitis, no mean or

median will be used, and the sample sizes for both exposure types are equal, the range, standard

deviation, variance and coefficient of variance will not be used.

B. Measures of Association

Since this is a cross-sectional study, our measures of association will be based on the prevalence

ratio, in which the relationship of those exposed to an air-conditioning system in the classroom

and the mild severity of the patients Allergic Rhinitis is evaluated using the following equation:

)/(

)/(Pr

dcc

baatioevalenceRa

;

Wherein: A = number of students with mild allergic rhinitis in air-conditioned classrooms

B = number of students with moderate-severe allergic rhinitis in air-conditioned

classroomsC = number of students with mild allergic rhinitis in non-air-conditioned classrooms

D = number of students with moderate-severe allergic rhinitis in non-air-conditioned

classrooms

Prevalence of Mild Severity AR in air-conditioned classrooms

Prevalence Ratio = Prevalence of Mild Severity AR in non air-conditioned classrooms

Exposure to Air-

conditioned classrooms

With Mild Allergic Rhinitis TOTAL

(+) (-)

(+) A B 101

(-) C D 101

Total A + C B + D 202


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After the prevalence ratio has been computed, the interpretation will be as follows:

PR Value Significance and Interpretation

IfPR =1 There is no association

between exposure to air-conditioned classrooms

and the prevalence of mild

severity allergic rhinitis.

IfPR > 1 There is an increased

probability of presence of

mild severity allergic

rhinitis if one is exposed to

air-conditioned

classrooms.

Suggests exposure to air-

conditioned classrooms may

be associated with increased

prevalence of mild severity

allergic rhinitis

The probability of

presence of mild

severity allergic

rhinitis among those

exposed to air-

conditioned

classrooms is xtimes more compared

to those without the

exposure.

IfPR < 1 There is a decreased

probability of presence of

mild severity allergic

rhinitis if one is exposed to

air-conditioned

classrooms.

Suggests exposure to air-

conditioned classrooms may

be associated with decreased

prevalence of mild severity

allergic rhinitis.

The probability of

presence of mild

severity allergic

rhinitis among those

exposed to air-

conditioned

classrooms is xtimes less compared

to those without the

exposure.

revised outputs8 and 9

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