Table 4 Other factors and the association with difference in mean logMFI-BG, seroreversion and seroconversion.

From: The effect of Mass Drug Administration for trachoma on antibodies to Chlamydia trachomatis pgp3 in children

Factor

N

Difference in mean logMFI-BG

P value

Rate of seroreversion

P value

Rate of seroconversion

P value

Age

 ≤ 5

992

− 0.17

0.17

10/232 (4.3)

0.79

28/760 (3.7)

0.91

6–10

916

− 0.14

17/438 (3.9)

17/478 (3.6)

Gender

Male

932

− 0.15

0.94

12/304 (4.0)

0.92

23/628 (3.7)

0.96

Female

976

− 0.15

15/366 (4.1)

22/610 (3.6)

Had TF at baseline

Yes

55

− 0.01

0.01

0/44 (0.0)

0.25

0/11 (0.0)

1.00

No

1853

− 0.16

27/626 (4.3)

45/1,227 (3.7)

Had infection at baseline

Yes

120

− 0.08

 < 0.001

0/114 (0.0)

0.008

5/6 (83.3)

 < 0.001

No

1788

− 0.17

27/556 (4.9)

40/1,232 (3.3%)

Communitya prevalence of TF at baseline

0%

848

− 0.18

0.02

18/240 (7.5)

0.001

25/608 (4.1)

0.44

 > 0%

1,060

− 0.13

9/430 (2.1)

20/630 (3.2)

Communitya prevalence of infection at baseline

0%

315

− 0.20

0.04

4/77 (5.9)

0.54

7/238 (2.9)

0.70

 > 0%

1593

− 0.14

23/593 (3.9)

38/1,000 (3.8)

  1. aCommunity is defined as the aggregate result from the children in the cohort living in that community.