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Table 4 Comparison of those who re – consented to those who did not re – consent following a change in study sponsorship

From: Incidence of tuberculosis among school-going adolescents in South India

Variable

Re – consent givena (N = 4647) (%)

Re – consent was not givenb,c (N = 1937) (%)

P value

Gender

   

 Male

2427 (52.2)

978 (50.5)

0.2

 Female

2220 (47.8)

959 (49.5)

 

Age

   

 12 years

1383 (29.8)

392 (20.3)

<0.01

 13–14 years

2453 (52.8)

1035 (53.4)

 

 15–16 years

675 (14.5)

415 (21.4)

 

 17–18 years

136 (2.9)

95 (4.9)

 

Surveillance

   

 Active

2235 (48.1)

808 (41.7)

<0.01

 Passive

2412 (51.9)

1129 (58.3)

 

Caste

   

 Dalit/ Harijan (socially disadvantaged community)

878 (18.9)

340 (17.6)

0.2

 Others

3769 (81.1)

1597 (82.4)

 

Mother’s education

   

 Illiterate

2221 (47.8)

954 (49.3)

0.3

 Primary education or more

2420 (52.1)

982 (50.7)

 

Father’s education

   

 Illiterate

1210 (26.0)

501 (25.9)

0.86

 Primary education or more

3416 (73.5)

1430 (73.8)

 

Type of house walls

   

 Brick

3674 (79.1)

1545 (79.8)

0.52

 Others

973 (20.9)

392 (20.2)

 

Type of cooking fuel

   

 Wood

3990 (85.9)

1653 (85.3)

0.58

 Others

657 (14.1)

284 (14.7)

 

TST Positivity during the follow - up

   

 Yes

949 (20.4)

240 (12.4)

<0.01

 No

3698 (79.6)

1697 (87.6)

 

Symptoms suggestive of TB during the follow – up

   

 Yes

96 (2.1)

7 (0.4)

<0.01

 No

4551(97.9)

1930 (99.6)

 

Significant TB exposure during the 2 years follow – up

   

 Yes

65 (1.4)

12 (0.6)

0.01

 No

4582 (98.6)

1925 (99.4)

 

Referral to DGW Status

   

 Attended the DGW

546 (11.7)

43 (2.2)

<0.01

 Didn’t attend the DGW even after referral

510 (11.0)

211 (10.9)

 

 Visited DGW even without referral during follow - up

25 (0.5)

4 (0.2)

 
  1. Missing data: Mother’s education – 7 (0.1 %), Father’s education – 27 (0.3 %)
  2. a Among the 4647 adolescents one death was reported after re-consent process in active surveillance group which is also included in the table
  3. b Fifty-nine subjects in active surveillance group whose day 720 form filled (closure of the study) before the re – consenting process data was considered as missing data. Of these three deaths were reported
  4. c There were two deaths reported after re-consent process in the passive surveillance group whose number is included in the table
  5. DGW diagnostic ward, TST – tuberculin skin test, Symptoms suggestive of Pulmonary Tuberculosis (PTB) include Cough ≥ 2 weeks, Fever ≥ 2 weeks, Recent Weight loss for ≥ 2 weeks, Night sweats ≥ 2 weeks, Haemoptysis; Significant TB exposure - History of positive TB contact (for more than 8 h/week)