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Table 5 Prevalence of anaemia and malnutrition during the 1st and 3rd cross-sectional surveys

From: The effect of insecticide-treated bed nets on the incidence and prevalence of malaria in children in an area of unstable seasonal transmission in western Myanmar

Malnutrition (Wt/Ht < −2Z1)
  ITN clusters NN clusters
1st prevalence 3rd prevalence Change 1st prevalence 3rd prevalence Change Relative change
Pair 1 87/692 (13) 67/651 (10) −2.3% 98/728 (13) 76/701 (11) −2.6% −0.3%
Pair 2 61/516 (12) 58/506 (11) −0.4% 86/651 (13) 102/634 (16) +2.9% 3.3%
Pair 3 72/435 (17) 71/413 (17) +0.6% 51/277 (18) 43/266 (16) −2.5% −3.1%
Pair 4 62/210 (30) 28/201 (14) −15.6% 38/169 (22) 32/167 (19) −3.3% 12.3%
Pair 5 17/64 (27) 6/61 (10) −16.7% 11/71 (15) 6/70 (9) −6.9% 9.8%
Pair 6 8/77 (10) 2/65 (3) −7.3% 3/42 (7) 5/42 (12) +4.8% 12.1%
Pair 7 105/735 (14) 92/701 (13) −1.2% 158/780 (20) 92/760 (12) −8.2% −7.0%
Pair 8 60/486 (12) 56/450 (12) +0.01% 67/585 (11) 81/572 (14) +2.7% 2.7%
Pair 9 87/652 (13) 55/620 (9) −4.5% 64/627 (10) 78/612 (13) +2.5% 7.0%
Pair 10 39/148 (26) 8/140 (6) −20.6% 10/104 (10) 7/100 (7) −2.6% 18.0%
Total 598/4015 (15) 443/3808 (12) 586/4034 (15) 586/4034 (15) 522/3924 (13) −1.2% 2.1%
Anaemia (Hb <10 g/dL)
  ITN clusters NN clusters
  1st prevalence 3rd prevalence Change 1st prevalence 3rd prevalence Change Relative change
Pair 1 362/695 (52) 299/659 (45) −6.7% 440/739 (60) 413/708 (58) −1.2% 5.5%
Pair 2 303/527 (57) 235/508 (46) −11.2% 332/662 (50) 305/644 (47) −2.8% 8.4%
Pair 3 228/441 (52) 182/413 (44) −7.6% 152/285 (53) 125/268 (47) −6.7% 0.9%
Pair 4 133/213 (62) 88/203 (43) −19.1% 110/176 (63) 59/169 (35) −27.6% - 8.5%
Pair 5 46/67 (69) 22/62 (35) −33.2% 29/72 (40) 33/71 (46) +6.2% 39.4%
Pair 6 76/77 (99) 52/65 (80) −18.7% 42/44 (95) 40/43 (93) −2.4% 16.3%
Pair 7 485/745 (65) 602/716 (84) +19.0% 657/792 (83) 558/761 (73) −9.6% −28.6%
Pair 8 355/489 (73) 307/461 (67) −6.0% 532/597 (89) 473/579 (82) −7.4% −1.4%
Pair 9 579/664 (87) 443/627 (71) −16.5% 540/632 (85) 446/619 (72) −13.4% 3.1%
Pair 10 142/148 (96) 108/143 (76) −20.4% 104/108 (96) 95/103 (92) −4.1% 16.3%
Total 2709/4066 (67) 2338/3857 (61) −6.0% 2938/4107 (72) 2547/3965 (64) −7.3% −1.3%
  1. 1 Weighted paired t test 3rd prevalence Wt/Ht - 2 Z score, p-value = 0.094. Relative change = (Prev 3 - Prev 1) NN cluster - (Prev 3 - Prev 1) ITN cluster. ITN: insecticide treated nets, NN: no nets.