Study ID

State

Type of study design

Age of participants (in years)

Ear morbidity assessment method

Sample size

(Total)

Prevalence(n)

Overall prevalence (%)

Prev. in Males (%)

Prev. in Females (%)

Prev. in Urban

Prev. in Rural

Hoy et al quality score

Low risk 0-3

Moderate risk 4-6

High risk 7-9

Chadha, et al. [18]

New Delhi

Community based cross-sectional study in schools

5-12

1. Head light

2. Otoscope

3. Hand held, Portable tympanoscope for tympanometry

4.  hand held audio scope

3000

652

 21.73%

No association

No association

2.13%

19.60%

2

Siddartha, et al. [19]

Karnataka

Community based cross-sectional study in schools

5-10

Clinical examination and tympanometry

1020

46

4.5%

43%

57%

No association

No association

4

Sophia, et al.

[20]

Tamil Nadu

Community based cross-sectional study, case-control study design

11months-7

Study questionnaire and tympanometry

800

69

8.6%

59.4%

40.6%

No association

10.6%

4

Chadha, et al. [16]

New Delhi

Community based cross-sectional study in schools

5-12

Headlight and an Otoscope

15718

4052

25.78%

No association

No association

4.79%

No association

2

Bright, et al. (2014)

Telangana

Community based cross-sectional study

0 -  3

Hearing screening with otoacoustic emissions.

280

5

1.8%

No association

No association

No association

No association

4

Kumar, et al. [21]

Karnataka

Community based cross-sectional study in schools

4 - 14

Pure tone Audiometry

1312

116

8.8%

No association

No association

No association

No association

4

Chadha, et al. [2]

New Delhi

Community based cross-sectional study, door to door survey

18 days -15

Clinical examination, otoscopic examination and tympanometer

3000

213

7.1%

No association

No association

14.5%

7%

2

Chadha, et al. (2015)

New Delhi

Community based cross-sectional study, door to door survey

0-15

1. Otoscopy

2. Impedance        audiometry

3. Hearing       Screening

4626

685

14.8%

No association

No association

 91.2%

8.7%

2