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Table 3 Impact of the HPV vaccine campaign (dose 1 delivery) on routine services

From: The impact of a human papillomavirus (HPV) vaccination campaign on routine primary health service provision and health workers in Tanzania: a controlled before and after study

Dose 1 weeks

Number of weeks control/intervention

Control facilities mean consults per week (s.d.)

Intervention facilities mean consults per week (s.d.)

Unadjusted RR p-value for interaction

Adjusted RR* p-value for interaction

Outpatient visits in children under 5 years

0.900

0.978

 Pre-Campaign weeks

116/116

16.7 (13.5)

15.3 (10.7)

0.73 (0.52–1.03)

0.62 (0.43–0.90)

 Campaign weeks

28/29

13.4 (10.6)

14.9 (12.6)

0.70 (0.46–1.05)

0.63 (0.41–0.98)

 Post-campaign weeks

140/145

17.1 (10.5)

17.8 (12.1)

0.72 (0.51–1.00)

0.63 (0.44–0.90)

%change campaign vs pre-campaign

−19.8%

−2.6%

  

% change post- vs. pre-campaign

+ 2.4%

+ 16.3%

  

First antenatal care visits

0.018

0.026

 Pre-Campaign weeks

116/116

3.2 (4.7)

2.1 (2.2)

1.06 (0.70–1.58)

0.73 (0.45–1.17)

 Campaign weeks

29/29

3.1 (3.6)

1.6 (1.7)

0.84 (0.48–1.48)

0.65 (0.34–1.21)

 Post-campaign weeks

145/145

4.3 (7.3)

2.0 (2.4)

0.72 (0.49–1.06)

0.48 (0.30–0.77)

%change campaign vs pre-campaign

−3.1%

−23.8%

  

% change post- vs. pre-campaign

+ 34.3%

−4.8%

  

Routine Immunisation visits

0.200

0.341

 Pre-Campaign weeks

120/120

7.7 (20.6)

2.4 (2.4)

0.87 (0.62–1.23)

0.66 (0.43–1.01)

 Campaign weeks

30/30

7.9 (24.0)

2.3 (2.6)

0.68 (0.42–1.11)

0.60 (0.35–1.04)

 Post-campaign weeks

150/150

7.4 (21.0)

2.8 (2.6)

0.98 (0.70–1.36)

0.78 (0.52–1.17)

%change campaign vs pre-campaign

+ 2.6%

−4.2%

  

% change post- vs. pre-campaign

−3.9%

+ 14.2%

  

Family Planning consultations

0.792

0.631

 Pre-Campaign weeks

124/120

12.4 (14.7)

9.8 (8.2)

1.11 (0.85–1.46)

0.49 (0.34–0.69)

 Campaign weeks

31/30

14.6 (18.7)

11.4 (15.9)

1.01 (0.69–1.49)

0.46 (0.30–0.72)

 Post-campaign weeks

155/150

16.8 (32.5)

13.8 (15.7)

1.14 (0.87–1.49)

0.53 (0.38–0.75)

%change campaign vs pre-campaign

+ 17.7%

+ 16.3%

  

% change post- vs. pre-campaign

+ 35.5%

+ 40.8%

  
  1. *RR the ratio in the mean number of consultations for each service in the intervention and control facilities in each week, adjusted for district, facility type (dispensary or health center), catchment population, total clinical staff per 1000 catchment population per facility, timing of other campaigns. P-values for interaction test the hypothesis that the effect of time period in relation to the HPV vaccination campaign on activity (counts of consultations) differs between the intervention and control facilities i.e. the campaign weeks have an effect on activity in intervention facilities but not on control facilities
  2. Italicised data indicates the relative change in the number of mean consultations per week, within each region, between the specified time-periods around the vaccination campaign