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Table 1 Baseline characteristics of pregnant women resident in the Nchelenge district of Zambia by recruitment site

From: High burden of malaria infection in pregnant women in a rural district of Zambia: a cross-sectional study

Variable All (N = 1085)
n (%) or n, median (IQR)
Kashikishi (n = 747)
n (%) or n, median (IQR)
Nchelenge (n = 338)
n (%) or n, median (IQR)
P value
Age (median) 25 (20–30) 737, 24 (20–30) 338, 25 (20–31) 0.133
Marital status     0.591
 Single 203 (18.7) 134 (17.9) 69 (20.4)
 Married 874 (80.6) 607 (81.3) 267 (80.0)
 Widowed/separated 8 (0.7) 6 (0.8) 2 (0.6)
Years of schooling     0.398
 None to 6 years 426 (39.3) 287 (38.4) 139 (41.1)
 7 years and above 659 (60.7) 460 (61.6) 199 (58.9)
Gravidity     0.657
 Primigravidae 261 (24.1) 183 (24.5) 78 (23.1)
 Secundigravidae 165 (15.2) 117 (15.6) 48 (14.2)
 Multigravidae 659 (60.7) 447 (59.8) 212 (62.7)
Bed net ownership     0.105
 No 551 (50.8) 367 (49.1) 184 (54.4)
 Yes 534 (49.2) 380 (50.9) 154 (45.6)
Bed net usage     0.349
 No 666 (61.6) 451 (60.6) 215 (63.6)
 Yes 416 (38.4) 293 (39.4) 123 (36.4)
 Missinga 3 0 3
IRS in previous 1 year     0.851
 No 808 (78.1) 563 (75.7) 245 (72.7)
 Yes 226 (21.9) 156 (21.0) 70 (20.8)
 Unknowna 51 28 23
Wealth quintile     0.089
 Lowest 217 (20.0) 135 (18.1) 82 (24.3)
 Second 221 (20.4) 151 (20.3) 70 (20.7)
 Middle 214 (19.8) 155 (20.8) 59 (17.5)
 Fourth 215 (19.9) 158 (21.20 57 (16.9)
 Highest 216 (19.9) 146 (19.6) 70 (20.7)
 Missinga 2 2 0
HIV status     0.374
 Negative 941 (86.8) 643 (86.2) 298 (88.2)
 Positive 143 (13.2) 103 (13.8) 40 (11.8)
 Missinga 1 1 0
ART among HIV-infected     0.689
 No 82 (57.3) 58 (56.3) 24 (60.0)
 Yes 61 (42.7) 45 (43.7) 16 (40.0)
 NA (HIV negative)a 941 643 298
  1. IQR interquartile range, IRS indoor residual spraying, ART antiretroviral therapy, NA not applicable
  2. aMissing values and NA (HIV Negative) are only presented as numbers and were not included in the calculation of percentages and in the Chi-squared test for association