Table 3. Identified contacts of “cases” and “controls” by age, sex and smear status of source case or control.
| Characteristics | “Case” contacts |
“Control” Contacts
|
|
|---|---|---|---|
| Unmatched for smear | Matched for Smear | ||
| Mean/Median(IQR) | Mean/Median(IQR) | Mean/Median(IQR) | |
| Age | |||
| <5 years | |||
| Close | 1.4/0(1) | 0.8/0(1) | 1/0(1) |
| Casual/Other | 1.3/0(2) | 0.7/0(1)* | 2/0(1) |
| Total | 2.6/1(3) | 1.5/0(2) | 2/1(2) |
| ≥5 years | |||
| Close | 14/9(13) | 9/5(8)* | 9/5(7)* |
| Casual/Other | 26/11(28) | 23/1(13)* | 13/2(12)* |
| Total | 39/26(35) | 33/8(22)* | 22/9(17)* |
| Sex | |||
| Male | |||
| Close | 6/4(6) | 5/3(5) | 4/3(4)* |
| Casual/Other | 10/3(8) | 8/0(4)* | 5/1(5)* |
| Total | 16/8(11) | 12/4(8)* | 9/5(9)* |
| Female | |||
| Close | 9/5(8) | 5/3(4) | 6/3(4) |
| Casual/Other | 17/7(23) | 16/0(7)* | 9/1(7)* |
| Total | 25/16(26) | 21/4(11)* | 14/5(10)* |
| Smear status of source | |||
| Smear-positive | |||
| Close | 19/12.5(18) | 14/8(14) | 13/6(11) |
| Casual/Other | 39/16.5(49) | 46/10(29)* | 22/7.5(22)* |
| Total | 58/35.5(54) | 60/21(56)* | 35/16(45)* |
| Smear-negative | |||
| Close | 10/7(8) | 6/4(6) | 6/4(6) |
| Casual/Other | 10/2(11) | 3/0(1) | 5/0(3) |
| Total | 19/11(19) | 10/5(6) | 11/6(8) |
* p < 0.05: conditional logistic regression with logarithm transformation of number of contacts. We imputed 0.01 as the number of contacts for patients who have no contact.