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Table 1 Univariable analysis results for sex, season, province and year of birth

From: Progress in the performance of HIV early infant diagnosis services in Zambia using routinely collected data from 2006 to 2016

Variable Age at test Time from diagnosis to ART Logistic regression for testing at < 2 months Logistic regression for time from diagnosis to ART < 2 weeks
< 2 months n (%) < 2 weeks n (%) OR 95% CI P-value OR 95% CI P-value
Sex
 Male 550/10,537 (5.2) 2249/10,537 (21.3) 1.00 1.00
 Female 603/11,185 (5.4) 2568/11,158 (23.0) 1.03 0.92, 1.17 0.573 1.10 1.03, 1.17 0.004
Season
 Early dry 914/5254 (17.4) 1478/5254 (28.1) 1.00 1.00
 Late dry 946/4168 (22.7) 1135/4168 (27.2) 1.39 1.26, 1.54 < 0.001 0.96 0.87, 1.05 0.333
 Early rainy 926/5364 (17.3) 1509/5364 (28.1) 0.99 0.90, 1.10 0.856 1.00 0.92, 1.09 0.999
 Late rainy 912/5474 (16.7) 1611/5474 (29.4) 0.95 0.86, 1.05 0.311 1.07 0.98, 1.16 0.137
Province
 Lusaka 365/5394 (6.8) 822/5394 (15.2) 1.00 1.00
 Central 94/2288 (4.1) 688/2288 (30.1) 0.59 0.47, 0.74 < 0.001 2.39 2.13, 2.69 < 0.001
 Copperbelt 294/4778 (6.2) 1648/4778 (34.5) 0.90 0.77, 1.06 0.210 2.93 2.66, 3.22 < 0.001
 Eastern 59/2072 (2.8) 431/2072 (20.8) 0.40 0.31, 0.53 < 0.001 1.46 1.28, 1.66 < 0.001
 Luapula 56/1341 (4.2) 547/1341 (40.8) 0.60 0.45, 0.80 0.001 3.83 3.36, 4.37 < 0.001
 Northern 57/983 (5.8) 350/983 (35.6) 0.85 0.64, 1.13 0.262 3.08 2.65, 3.57 < 0.001
 North-Western 25/883 (2.8) 244/883 (27.6) 0.40 0.27, 0.61 < 0.001 2.12 1.80, 2.50 < 0.001
 Southern 394/3366 (11.7) 718/3366 (21.3) 1.83 1.57, 2.12 < 0.001 1.51 1.35, 1.69 < 0.001
Western 24/1577 (1.5) 285/1577 (18.1) 0.21 0.14, 0.32 < 0.001 1.27 1.06, 1.42 0.007
Year of birth
 2006 220/1709 (12.9) 340/1709 (19.9) 1.00 1.00
 2007 412/2619 (15.7) 547/2619 (20.9) 1.26 1.06, 1.51 0.009 1.06 0.91, 1.24 0.430
 2008 528/3475 (15.2) 790/3475 (22.7) 1.21 1.02, 1.44 0.025 1.18 1.03, 1.37 0.020
 2009 683/3678 (18.6) 861/3678 (23.4) 1.54 1.31, 1.82 < 0.001 1.23 1.07, 1.42 0.004
 2010 675/2718 (24.8) 726/2718 (26.7) 2.24 1.89, 2.65 < 0.001 1.47 1.27, 1.70 < 0.001
 2011 446/1812 (24.6) 612/1812 (33.8) 2.21 1.85, 2.64 < 0.001 2.05 1.76, 2.40 < 0.001
 2012 191/1384 (13.8) 564/1384 (40.8) 1.08 0.88, 1.33 0.450 2.77 2.35, 3.26 < 0.001
 2013 186/1352 (13.8) 605/1352 (44.7) 1.08 0.88, 1.33 0.474 3.26 2.76, 3.85 < 0.001
 2014 171/1019 (16.8) 548/1019 (53.8) 1.36 1.10, 1.70 0.005 4.68 3.90, 5.62 < 0.001
 2015 137/386 (35.5) 140/386 (36.3) 3.72 2.87, 4.83 < 0.001 2.29 1.80, 2.92 < 0.001
 2016 49/108 (45.4) 0/108 (0.0) 5.62 3.71, 8.51 < 0.001
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