Table 3

Mortality of children visited between 9 and 18 months of age according to vaccination group with follow-up censored at 2 months after entry into the analysis

Vaccination statusObservations
N
MR per 1000 PYRS
(deaths/PYRS)
MRR
(95% CI)
BoysGirls
Observations
N
MR per 1000 PYRS
(deaths/PYRS)
MRR
(95% CI)
Observations
N
MR per 1000 PYRS
(deaths/PYRS)
MRR
(95% CI)
DTP<MV159025.8 (6/233)Ref83432.9 (4/122)Ref75618.0 (2/111)Ref
DTP=MV149160.5 (13/215)2.34 (0.77 to 7.12)72938.2 (4/105)1.16 (0.27 to 5.07)76281.8 (9/110)6.71 (0.77 to 58.26)
DTP>MV49360.4 (4/66)3.30 (0.77 to 14.14)25558.8 (2/34)1.61 (0.26 to 10.18)23862.1 (2/32)14.61 (1.01 to 210.68)
DTP, no MV181693.4 (27/289)3.47 (1.24 to 9.69)931127.8 (19/149)2.56 (0.80 to 8.24)88557.0 (8/140)6.34 (0.72 to 55.92)
No DTP, no MV547130.3 (11/84)3.35 (1.00 to 11.26)29088.6 (4/45)1.19 (0.24 to 5.90)257178.3 (7/39)14.73 (1.55 to 140.27)
Out-of-sequence vaccinations combined DTP≥MV198460.5 (17/281)2.51 (0.86 to 7.35)98443.2 (6/139)1.26 (0.32 to 4.85)100077.4 (11/142)7.83 (0.90 to 67.83)
  • MRRs were calculated using Cox proportional hazards models with age as underlying time, stratified by sex and village cluster.

  • DTP, diphtheria-tetanus-pertussis vaccine; MRR, mortality rate ratio; MV, measles vaccine; PYRS, per 1000 person years.