Bulletin of the World Health Organization

Assessing the quality of data aggregated by antiretroviral treatment clinics in Malawi

Simon D Makombe, Mindy Hochgesang, Andreas Jahn, Hannock Tweya, Bethany Hedt, Stuart Chuka, Joseph Kwong-Leung Yu, John Aberle-Grasse, Olesi Pasulani, Christopher Bailey, Kelita Kamoto, Erik J Schouten, Anthony D Harries

Volume 86, Number 4, April 2008, 310-314

Table 1. Sites with acceptable data quality

Clinic characteristic Total number of sites (n = 89) Data completeness
Data accuracy
Number (and proportion) of sites with complete outcome data Odds ratio (90% confidence interval) Number (and proportion) of sites with accurate outcome data Odds ratio (90% confidence interval)
Burden
Medium or medium-high burden (max. 50 or 75 new patients/month) 30 28 (0.93) ref 27 (0.90) ref
Low burden (max. 25 new patients/month) 59 43 (0.73) 0.19 (0.05–0.70)a 37 (0.63) 0.19 (0.06–0.56)a
Type
Central or district hospital 22 20 (0.91) ref 19 (0.86) ref
Mission hospital 26 21 (0.81) 0.42 (0.10–1.83) 19 (0.73) 0.43 (0.12–1.50)
Rural hospital or health centre 20 14 (0.70) 0.23 (0.05–1.00) 11 (0.55) 0.19 (0.06–0.68)a
Other (NGO, military) 21 16 (0.76) 0.32 (0.07–1.41) 15 (0.71) 0.40 (0.11–1.44)
Region
Southern 35 33 (0.94) ref 29 (0.83) ref
Central 37 28 (0.76) 0.19 (0.05–0.73)a 28 (0.76) 0.64 (0.24–1.70)
Northern 17 10 (0.59) 0.09 (0.02–0.37)b 7 (0.41) 0.15 (0.05–0.43)
Number of clerks for record-keepingc
None 6 4 (0.67) ref 3 (0.50) ref
1 clerk 66 52 (0.79) 3.90d (1.30–11.69)a 47 (0.71) 3.55d (1.32–9.55)a
2 clerks 15 15 (1.00) 14 (0.93)
Length of time site providing treatment
0–3 months 33 20 (0.61) ref 15 (0.46) ref
4–12 months 27 24 (0.89) 5.20 (1.62–16.68)a 24 (0.90) 9.60 (2.61–21.56)b
13 or more months 29 27 (0.93) 8.77 (2.30–33.51)b 25 (0.86) 7.50 (3.01–30.62)a
Previous supervision visit in the quarter
No supervision 61 47 (0.77) ref 41 (0.67) ref
Supervision 28 24 (0.86) 1.79 (0.64–4.95) 23 (0.82) 2.24 (0.89–5.68)

NGO, nongovernmental organization; ref, reference.a P < 0.05.b P < 0.01.c No information on clerks at two sites.d Odds ratio shows the increase in odds for every additional clerk.