Rate per 1000 PYRS (deaths/PYRS) | Crude MRR (95% CI) | Adjusted MRR (95% CI)* | |||||
All | Boys | Girls | All | Boys | Girls | ||
All | |||||||
VAS | 15.3 (44/2873) | 0.93 (0.55 to 1.58) | 0.85 (0.44 to 1.67) | 1.07 (0.45 to 2.57) | 0.78 (0.46 to 1.34) | 0.73 (0.37 to 1.43) | 0.89 (0.37 to 2.14) |
No VAS | 15.9 (20/1260) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) |
No information | 32.5 (8/227) | 2.17 (0.96 to 4.94) | 2.04 (0.73 to 5.71) | 2.40 (0.62 to 9.27) | 2.10 (0.75 to 5.89) | 1.96 (0.59 to 6.57) | 2.35 (0.53 to 10.4) |
2007 | |||||||
VAS | 4.4 (6/1352) | 0.40 (0.14 to 1.15) | 0.54 (0.15 to 1.85) | 0.18 (0.02 to 1.69) | 0.38 (0.13 to 1.10) | 0.52 (0.15 to 1.79) | 0.16 (0.02 to 1.59) |
No VAS | 10.9 (8/731) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) |
2008 | |||||||
VAS | 24.4 (38/1521) | 1.04 (0.54 to 2.00) | 0.88 (0.39 to 2.00) | 1.37 (0.46 to 4.09) | 1.02 (0.53 to 1.96) | 0.86 (0.38 to 1.96) | 1.32 (0.44 to 3.94) |
No VAS | 21.7 (12/529) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) |
p For same effect of VAS in 2007 and 2009 | 0.13 | 0.51 | 0.11 | 0.12 | 0.50 | 0.11 | |
Children aged 6–11 months | |||||||
VAS | 23.3 (16/687) | 1.35 (0.48 to 3.76) | 1.68 (0.47 to 6.07) | 0.84 (0.15 to 4.66) | 1.14 (0.41 to 3.19) | 1.41 (0.40 to 5.10) | 0.72 (0.13 to 3.98) |
No VAS | 17.0 (5/294) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) |
Children aged 12–35 months | |||||||
VAS | 12.8 (28/2186) | 0.81 (0.43 to 1.51) | 0.62 (0.27 to 1.39) | 1.19 (0.43 to 3.30) | 0.69 (0.36 to 1.29) | 0.53 (0.23 to 1.20) | 0.98 (0.35 to 2.72) |
No VAS | 15.5 (15/966) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) | 1 (ref) |
p For same effect of VAS in younger and older children | 0.40 | 0.20 | 0.74 | 0.41 | 0.21 | 0.76 |
↵* Adjusted for sex, campaign, seen vaccination card, ethnicity and maternal education.
MRR, mortality rate ratio; PYRS, person-years; VAS, vitamin A supplementation.