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Agustin, Aranjuez , Magat , Maglaque , Ocampo , Parco, Regalado , Serrano, Tan, Tanbonliong PowerPoint Presentation
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BANGGAAN SA DAAN: PAANO NA SI JUAN?. A CASE CONTROL STUDY ON THE EXPOSURE FACTORS LEADING TO THE OCCURRENCE OF VEHICULAR ACCIDENT RELATED INJURIES. Agustin, Aranjuez , Magat , Maglaque , Ocampo , Parco, Regalado , Serrano, Tan, Tanbonliong. OUTLINE. I. Introduction

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Presentation Transcript
slide1

BANGGAAN SA DAAN:

PAANO NA SI JUAN?

A CASE CONTROL STUDY ON THE EXPOSURE FACTORS LEADING TO THE OCCURRENCE OF VEHICULAR ACCIDENT RELATED INJURIES

Agustin, Aranjuez, Magat, Maglaque, Ocampo, Parco, Regalado, Serrano, Tan, Tanbonliong

slide2

OUTLINE

I. Introduction

A. Review of Related Literature

B. Conceptual Framework

C. Statement of the Problem

D. Hypotheses

E. Research Objectives

F. Significance of the Study

slide3

OUTLINE

II. Methodology

  • Research Design
  • Participants
  • Scope and Limitations
  • Operational Definitions
  • Data Collection
  • Methods to Minimize Potential Biases
  • Methods to Minimize Sources of Error
  • Data Analysis
  • Plan for Dissemination of Results
  • Ethical Considerations
  • Timetable
  • Projected Cost
slide4

INTRODUCTION

  • Filipinos debilitated everyday  road accidents
  • Safety Organization of the Philippines, Inc. (Jan 2006 to Dec 2006)
    • 30.22% of non-fatal accidents
    • 56.92% of property damage were due to private vehicles
  • 2005 Accident Locations (Arterial Roads) by Metropolitan Road Safety Unit  6433 accidents occur at EDSA alone
  • Commonwealth Avenue ranks second
slide5

INTRODUCTION

REVIEW OF RELATED LITERATURE

  • As of the year 2000, the Department of Health (DOH) ranks it as the fifth leading cause of death and mortality in the country
  • vehicular accidents are prevalent in the Metro Manila  end up in fatal injuries and even death
  • possible outcomes of road collisions – fatality, injury, and property damage
slide6

INTRODUCTION

REVIEW OF RELATED LITERATURE

  • Metro Manila Accident Reporting and Analysis System (MMARAS)  Types of vehicles
  • Land Transportation Office  topmost causes of vehicular accidents here in Metro Manila
slide7

INTRODUCTION

CONCEPTUAL FRAMEWORK

Driver

Exposure to factors

Vehicular Accident:

-Environmental Factors (Ambient lighting, surface condition of road)

-Vehicular Factors

(motorcycle, motor tricycle, car, jeepney/FX/taxi, bus, van)

-Driver Error (driving too fast, inattentiveness, bad overtaking, driving too close, disobeying traffic signs/ lights, others

Positive for Vehicular Accident Related Injury (VARIs)

Negative for Vehicular Accident Related Injury (VARIs)

slide8

INTRODUCTION

STATEMENT OF THE PROBLEM

  • Aims to determine whether environmental, vehicular and driver-related exposures act as risk factors for acquiring vehicular accident-related injuries (VARIs)
    • What is the prevalence of each type of exposure?
    • Among the environmental/vehicular/driver error factors, which has the strongest association with VARIs?
slide9

INTRODUCTION

HYPOTHESES

  • If the driver is exposed to certain environmental, vehicular and driver-related factors prior to the accident then there is an increased likelihood of VARIs.
    • driver (certain environmental factors)  increased likelihood of acquiring VARIs
    • exposure to certain vehicular factors and driver factors  increase acquiring VARIs.
slide10

INTRODUCTION

RESEARCH OBJECTIVES

  • Identify exposures involved with the occurrence of VARIs.
  • Identify the prevalence of each exposure.
  • Identify the prevalence of each factor under each type of exposure.
  • Rank each type of exposure according to degree of prevalence
slide11

INTRODUCTION

RESEARCH OBJECTIVES

  • Rank each factors under each type of exposure according to degree of prevalence
  • Rank strength of association between VARIs and each type of exposure
  • Rank strength of association between VARIs and each factor under each type of exposure.
slide12

INTRODUCTION

SIGNIFICANCE OF THE STUDY

  • Traffic accidents are highly avoidable  best to know the determinants of these unfortunate events, determine the ways to avoid them and the ways to improve the traffic system
  • Focus of the study
    • more specific in the categories of traffic collisions, the environmental factors, personal factors and type of vehicle
  • help formulate necessary intervention, decrease the economic cost of accidents, and possibly improve the future quality of life of drivers
slide13

METHODOLOGY

RESEARCH DESIGN

b)

Positive for Vehicular Accident Related Injuries (VARIs)

Identify the exposure/s suspected of causing VARIs

Positive for the Disease/ Condition

Occurrence of Vehicular Accident Related Injuries (VARIs)

Identify the exposure/s suspected of causing the disease/ condition

a)

Occurrence of a Disease/ Condition

Negative for Vehicular Accident Related Injuries (VARIs)

Negative for the Disease/ Condition

Figure 5. Comparison between a Case Control Study’s retrograde process (a) with this study’s research design (b)

slide14

METHODOLOGY

PARTICIPANTS

  • EDSA and Commonwealth – main areas of the study
  • Cases - motor vehicle drivers who are involved in vehicular accidents with accompanying major and/or minor injuries
  • Controls - motor vehicle drivers who are involved in vehicular accidents without accompanying major and/or minor injuries
slide15

METHODOLOGY

PARTICIPANTS

  • Sampling method
    • All potential accident reports within the limitations and framework of the study shall be compiled from official accident reports in the Guadalupe and Commonwealth Traffic Sectors
    • be segregated to the cases (for nonfatal accidents with minor or major injuries to the driver) and controls (for nonfatal accidents without minor or major injuries to the driver).
slide16

METHODOLOGY

SCOPE AND LIMITATIONS

  • Time period: 1 January 2009 to 31 December 2009.
  • Non-fatalvehicle-to-vehicle accidents under the jurisdiction of the Guadalupe Traffic Sector (for EDSA) and the Commonwealth Traffic Sector (for Commonwealth)
  • Primary data source: Official accident reports made by trained traffic police investigators in the Guadalupe and Commonwealth Traffic Sectors
slide17

METHODOLOGY

OPERATIONAL DEFINITIONS

slide18

METHODOLOGY

OPERATIONAL DEFINITIONS

slide19

METHODOLOGY

OPERATIONAL DEFINITIONS

slide20

METHODOLOGY

DATA COLLECTION

slide21

METHODOLOGY

DATA COLLECTION

slide22

METHODOLOGY

METHODS TO MINIMIZE POTENTIAL BIASES

  • Rater bias
    • Official accident reports filled up by designated police investigators who have underwent the Traffic Accident Investigation Course
    • Consider the investigator
  • Instrument bias
    • DPWH-crafted police report
slide23

METHODOLOGY

METHODS TO MINIMIZE SOURCES OF ERROR

  • EDSA and Commonwealth have similar characteristics, such as the same types of vehicles that run through them, the same number of lanes and volume of traffic
  • Data collection methods were standardized
slide24

METHODOLOGY

DATA ANALYSIS

  • Odds ratio between the outcome and each of the available exposure factors (OR = AD/BC)
  • Ranked in order to determine which exposure factor has the greatest correlation with the outcome
slide25

METHODOLOGY

PLAN FOR DISSEMINATION OF RESULTS

  • Presented to the general academic community
  • A copy of the study output will be given to the MMDA and to other traffic-related bodies
  • Used as a reference for preventive interventions against possible fatal and untimely accidents along major roads and highways
slide26

METHODOLOGY

ETHICAL CONSIDERATIONS

  • The use of the data from the official accident reports solely for the purposes of the study
  • The protection and right to privacy of the identities of the parties involved in the accidents described in the accident reports
slide27

METHODOLOGY

TIMETABLE

slide28

METHODOLOGY

PROJECTED COSTS