Table 3.
Demographic features of cases of vaccine-eligible-age all-serotype invasive pneumococcal disease and age-matched and community-matched controls
| Cases (N=34) | Controls (N=136) | p value* | ||
|---|---|---|---|---|
| Sex | .. | .. | 0·22 | |
| Male | 23 (68%) | 69 (51%) | .. | |
| Female | 11 (32%) | 67 (49%) | .. | |
| Median age, months (IQR) | 8·7 (5·6–18·6) | 8·4 (5·3–18·9) | 0·96 | |
| Vaccine record observed | 33 (97%) | 132 (97%) | 0·065 | |
| Mean household occupants (SD) | 4·3 (1·5) | 4·3 (1·4) | 0·99 | |
| Mean maternal age, years (SD) | 25·6 (5·8) | 26·5 (6·4) | 0·53 | |
| Mother deceased | 1 (3%) | 0 | 0·21 | |
| Father deceased | 0 | 1 (1%) | 0·79 | |
| Z-score | ||||
| Weight for age | −1·5 | 0·1 | <0·0001 | |
| Height for age | −0·3 | −0·5 | 0·66 | |
| Weight for height | −1·8 | 0·6 | <0·0001 | |
| Number of pneumcoccal conjugate vaccine doses received | ||||
| 0 | 6 (18%) | 25 (18%) | .. | |
| 1 | 6 (18%) | 11 (8%) | .. | |
| 2 | 5 (15%) | 15 (11%) | .. | |
| 3 | 17 (50%) | 85 (63%) | .. | |
Data are n (%), unless otherwise specified.
*
χ2 test (Mantel-Haenszel χ2 where stratified) used for categorical covariates, unless fewer than five observations, where Fisher's exact test used. t test of means and rank-sum test of medians used for continuous covariates.