Table 4

Subgroup analysis of completing immunisation by 12 months of age by study group

CharacteristicControl (n=300) (%)Intervention (n=300) (%)Stratum-specific RR (95% CI)P value
Sex

  • Male

  • Female

112/163 (69)
86/137 (63)		116/148 (78)
105/152 (69)		1.14 (1.00 to 1.30)
1.10 (0.93 to 1.30)		0.74
Maternal education

  • Completed university

  • Did not complete university

124/163 (76)
74/137 (54)		144/183 (79)
77/117 (66)		1.22 (1.00 to 1.49)
1.03 (0.92 to 1.16)		0.17
Mothers age (years)

  • >35

  • ≤35

28/40 (70)
169/259 (65)		22/30 (73)
199/270 (74)		1.05 (0.78 to 1.41)
1.13 (1.01 to 1.27)		0.21
No of children under age 5

  • >1

  • ≤1

94/146 (64)
101/149 (68%)		104/135 (77)
117/164 (71%)		1.20 (1.03 to 1.39)
1.05 (0.91 to 1.22)		0.23
Mother owns a car

  • No

  • Yes

180/275 (65)
18/25 (72)		192/263 (73)
29/37 (78)		1.12 (1.00 to 1.25)
1.09 (0.81 to 4.47)		0.88
Mother’s mode of transportation

  • Public transportation or walk

  • Personal car

171/252 (68)
27/48 (56)		183/245 (75)
38/55 (69)		1.10 (0.98 to 1.23)
1.23 (0.91 to 1.67)		0.51
Able to name two diseases immunisation prevents

  • No

  • Yes

64/92 (70)
134/208 (640		57/82 (70)
164/218 (75)		1.00 (0.98 to 1.23)
1.23 (0.91 to 1.67)		0.51
Someone to bring child for immunisation if mother cannot

  • No

  • Yes

145/207 (70%)
53/92 (58%)		151/200 (76%)
70/98 (71%)		1.08 (0.96 to 1.21)
1.24 (1.00 to 1.15)		0.27
Study site location

  • Ondo Town

  • Akure

59/125 (47%)
139/175 (79%)		73/125 (58%)
148/175 (85%)		1.24 (0.98 to 1.57)
1.06 (0.96 to 1.18)		0.25

  • Data are n/N (%) and RR (95% CI). P values obtained from an interaction term between intervention.

  • RR, risk ratio.