Tinnitus Archive > Data Sets > 2 > Audiological History > Index of Noise Exposure
Data Set 2: Gender Based Differences in Tinnitus | Related Data Summaries |
Overall Sample Number: 873
Number of patients responding to this item: 795
Format of the Questionnaire Item: Format is shown below the histogram.
Method for computing Noise Exposure Index (see details of Method below).
Males | Females | All | |||||
---|---|---|---|---|---|---|---|
N | Column % | N | Column % | N | Column % | ||
-1.50 to -1.01 | 49 | 8.5 | 128 | 58.2 | 177 | 22.3 | |
-1.00 to -0.51 | 80 | 13.9 | 59 | 26.8 | 139 | 17.5 | |
-0.50 to -0.01 | 92 | 16.0 | 21 | 9.5 | 113 | 14.2 | |
0.00 to 0.49 | 106 | 18.4 | 8 | 3.6 | 114 | 14.3 | |
0.50 to 0.99 | 104 | 18.1 | 2 | 0.9 | 106 | 13.3 | |
1.00 to 1.49 | 69 | 12.0 | 2 | 0.9 | 71 | 8.9 | |
1.50 to 1.99 | 42 | 7.3 | -- | -- | 42 | 5.3 | |
2.00 to 2.49 | 28 | 4.9 | -- | -- | 28 | 3.5 | |
More than/equal to 2.50 | 5 | 0.9 | -- | -- | 5 | 0.6 | |
Column Total | 575 | 100.0 | 220 | 100.0 | 795 | 100.0 |
Format of the Questionnaire Item: | View Items In Context? 1, 2, 3, 4 View Coding In Context? |
HAVE YOU WORKED IN ANY OF THE FOLLOWING TYPES OF OCCUPATIONS? [] NO [] YES +-------------------------------------------------------------------------+ | (IF YES, CHECK ALL THAT APPLY, EVEN IF VERY BRIEF) APPROX | | STARTING LENGTH | | AGE OF TIME | | [] LOGGING, LUMBER INDUSTRY ________ ________ | | [] MINING ________ ________ | | [] FARMING ________ ________ | | [] FACTORY:_______________________________________ ________ ________ | | INDICATE TYPE | | [] CANNERY ________ ________ | | [] PRINTING ________ ________ | | [] TRANSPORTATION (TRUCK, BOAT, PLANE, ETC.) ________ ________ | | [] CONSTRUCTION: _________________________________ ________ ________ | | INDICATE TYPE | | [] POLICE, FIRE DEPT. ________ ________ | | [] LOUD MUSIC (1) AMPLIFIED ( ROCK BAND, OTHER ) ________ ________ | | (2) LIVE MUSIC ________ ________ | | [] ANY OTHER TYPES OF NOISY OCCUPATION (DESCRIBE) | | ______________________________________________ ________ ________ | | ______________________________________________ ________ ________ | +-------------------------------------------------------------------------+ HAVE YOU BEEN IN MILITARY SERVICE? [] NO [] YES +-------------------------------------------------------------------------+ | (IF YES, CHECK ALL THAT APPLY, EVEN IF VERY BRIEF) APPROX | | STARTING LENGTH | | AGE OF TIME | | [] ARTILLERY ________ ________ | | [] TANKS, OTHER HEAVY EQUIPMENT ________ ________ | | [] PLANES, HELICOPTERS ________ ________ | | [] SMALL ARMS (1) BASIC TRAINING ________ ________ | | (2) AFTER BASIC ________ ________ | | [] EXPLOSION ________ ________ | | [] OTHER:_________________________________________ ________ ________ | +-------------------------------------------------------------------------+ HAVE YOU BEEN EXPOSED TO NOISE DURING RECREATIONAL OR LEISURE-TIME ACTIVITIES? [] NO [] YES IF YES: +-------------------------------------------------------------------------+ | (PLEASE CHECK ALL THAT APPLY TO YOU IN THE LIST BELOW, | | EVEN IF YOU DID THEM ONLY A FEW TIMES OR A LONG TIME AGO) APPROX | | STARTING LENGTH | | AGE OF TIME | | [] GUNFIRE _______________________________________ ________ ________ | | INDICATE TYPE(S) | | [] POWER TOOLS ___________________________________ ________ ________ | | INDICATE TYPE(S) | | [] ENGINES (BOAT, AUTO, MOTORCYCLE, SKIMOBILE) ________ ________ | | [] LOUD MUSIC ________ ________ | | [] OTHER:_________________________________________ ________ ________ | | DESCRIBE | +-------------------------------------------------------------------------+ HAVE YOU UNDERGONE ANY ACCIDENTAL EXPOSURE TO SUDDEN, INTENSE NOISE? [] NO [] YES IF YES:__________________________________ _______________ _______________ TYPE OF NOISE WHICH EAR OR YOUR AGE THEN SIDE OF HEAD |
Method for computing Noise Exposure Index:
(1) Patients listed the various types and durations of noise exposures they had experienced; (2) based on detailed interviewing, the examining audiologist rated the probable significance of each such exposure (1=low, 2=moderate, 3=high); (3) each patient's significance ratings were summed, yielding a Total Noise Exposure score for each patient.
(1) The mean and standard deviation of the Noise Exposure scores for the entire group of patients were calculated; (2) each patient's score was then standardized in terms of its distance above or below the mean, in standard deviation units (z-scores); (3) the resulting z-scores are the Noise Exposure Index values that are shown in the Table below.
(1) It can be seen that nearly all females had Noise Exposure Index values below the group mean (i.e. little or no noise exposure); (2) the majority of males had Noise Exposure Index values at or above the group mean (i.e. substantial noise exposure).