Background
Materials and methods
Study design, area, and period
Populations
Inclusion and exclusion criteria
Sampling size determination and sampling technique
Operational definitions
Data collection and laboratory methods
Socio-demographic and clinical data collection
Blood specimen collection and processing
Data quality control
Data processing and data analysis
Results
Socio-demographic characteristics of newborns and mothers
Variables | Categories | Case group N (%) | Control group N (%) |
---|---|---|---|
Newborns’ sex | Male | 64 (41.56) | 70 (45.45) |
Female | 90 (58.44) | 84 (54.55) | |
Mothers’ age | < 20 years | 4 (2.60) | 0(0) |
20–34 years | 129 (83.77) | 140 (90.91) | |
35–39 years | 18 (11.69) | 12 (7.79) | |
≥ 40 years | 3 (1.95) | 2 (1.30) | |
Mothers’ residence | Urban | 94 (61.04) | 112 (72.73) |
Rural | 60 (38.96) | 42 (27.27) | |
Mother educational status | No formal education | 29 (18.83) | 19 (12.34) |
Primary school | 46 (29.87) | 33 (21.43) | |
Secondary school | 40 (25.97) | 65 (42.21) | |
High school and above | 39 (25.32) | 37 (24.02) | |
Mother occupational status | Housewife | 80 (51.95) | 70 (45.45) |
Merchant | 17 (11.04) | 25 (16.23) | |
Private employee | 33 (21.43) | 44 (28.57) | |
Governmental employee | 21 (13.64) | 13 (8.44) | |
Students | 3 (1.95) | 2 (1.30) |
Obstetrics and nutritional characteristics of newborns and mothers
Variables | Category | Case group | Control group |
---|---|---|---|
N (%) | N (%) | ||
Gravity | Primigravida | 60 (38.96) | 70 (45.45) |
Multigravida | 94 (61.04) | 84 (54.55) | |
Parity | 1 | 63 (40.91) | 72 (46.75) |
2 | 41 (26.62) | 48 (31.17) | |
3 | 28 (18.18) | 15(9.74) | |
4 | 13 (8.44) | 15 (9.74) | |
≥ 5 | 9 (5.85) | 4 (2.60) | |
Birth interval in years | < 3 years | 40 (43.95) | 27 (32.93) |
3-5 years | 48 (52.75) | 50 (60.98) | |
> 5 years | 3 (3.30) | 5 (6.09) | |
History of abortion | Yes | 24 (15.58) | 17 (11.04) |
No | 130 (84.42) | 137 (88.96) | |
Vegetable consumption per week | Never | 7 (4.55) | 13 (8.44) |
Once a week | 5 (3.25) | 1 (0.65) | |
2–3 days a week | 47 (30.52) | 34 (22.08) | |
Above 3 days | 95 (61.69) | 106 (68.83) | |
Fruit consumption per week | Never | 14 (9.09) | 24 (15.58) |
Once a week | 16 (10.39) | 3 (1.95) | |
2–3 days a week | 78 (50.65) | 62 (40.26) | |
Above 3 days | 46 (29.87) | 65 (42.20) | |
ANC follow up | Yes | 127 (82.47) | 136 (88.31) |
No | 27 (17.53) | 18 (11.69) | |
Take iron/ vitamin | Yes | 119 (77.27) | 129 (83.77) |
No | 35 (22.73) | 25 (16.23) | |
Gestational maturity | Pre term | 74 (48.05) | 19 (12.34) |
Term | 80 (51.95) | 135 (87.66) | |
Mode of delivery | SVD | 93 (60.39) | 113 (77.38) |
Induced | 4 (2.60) | 3 (1.95) | |
Assisted | 5 (3.25) | 4 (2.60) | |
CS | 55 (33.77) | 34 (22.08) | |
Resuscitation for newborns | Yes | 66 (42.86) | 25 (16.23) |
No | 88 (57.14) | 129 (83.77) |
The anthropometric measurements of the newborns and mothers
Variables | Case group | Control group | P- value |
---|---|---|---|
Mean ± SD | Mean ± SD | ||
BMI of mothers in grams | 24.24 ± 2.51 | 24.25 ± 2.28 | 0.974 |
SBP of mothers in mmHg | 166.17 ± 13.15 | 110.48 ± 5.96 | 0.000* |
DBP of mothers mmHg | 111.97 ± 9.53 | 70.06 ± 5.97 | 0.000* |
Weight of newborn in grams | 2642.20 ± 496.10 | 2944.80 ± 426.26 | 0.000* |
Hematological profiles of newborns
Hematological parameters | Case group | Control group | P-Value |
---|---|---|---|
TLC (10*3/µL)a | 11.42 ± 4.26 | 12.48 ± 4.41 | 0.015* |
ANC (10*3/µL) a | 6.62 ± 3.30 | 7.55 ± 3.31 | 0.007* |
RBC (10*6/µL)a | 4.41 ± 0.40 | 4.26 ± 0.64 | 0.007* |
Hematocrit (%) a | 49.10 ± 5.19 | 46.09 ± 7.63 | < 0.001* |
MCV (FL)a | 110.21 ± 7.48 | 107.80 ± 5.97 | < 0.001* |
MCHC (g/dl)a | 34.20 ± 1.98 | 34.01 ± 1.28 | 0.473 |
RDW-SD (FL)a | 71.97 ± 10.16 | 68.79 ± 8.88 | 0.001* |
NRBC/100 WBCa | 7.41 ± 3.46 | 4.68 ± 2.33 | < 0.001* |
MRV(FL)a | 143.61 ± 9.42 | 140.40 ± 10.53 | 0.002* |
Platelet (10*3/µL) a | 221.25 ± 83.56 | 260.24 ± 83.01 | < 0.001* |
ALC (10*3/µL) b | 3.1 (2.2, 4) | 3.1 (2.4, 4.1) | 0.468 |
Monocyte count (10*3/µL) b | 3.1 (2.2, 4) | 1.1 (0.8, 1.5) | 0.026* |
Eosinophil count (10*3/µL)b | 0.2 (0.1, 0.3) | 0.2 (0.1, 0.4) | 0.354 |
Basophil count (10*3/µL)b | 0.1 (0.1, 0.2) | 0.1 (0.1, 0.2) | 0.527 |
Hgb (g/dL)b | 16.7 (15.8, 17.5) | 16.05 (15, 17.2) | < 0.001* |
MCH (pg) b | 37.9 (36.5, 38.5) | 36.95 (35.7, 37.9) | < 0.001* |
RDW (%) b | 18.55 (17.5, 19.5) | 17.7 (16.9, 18.7) | < 0.001* |
MPV (FL)b | 8.2 (7.8, 8.7) | 8.1 (7.6, 8.6) | 0.160 |
Reticulocyte (%) b | 3.33 (2.97, 3.92) | 3.29 (2.83, 3.74) | 0.171 |
Reticulocyte (FL) b | 0.14 (0.12, 0.18) | 0.13 (0.12, 0.16) | 0.080 |
IRF b | 0.63 (0.60, 0.66) | 0.64 (0.61, 0.67) | 0.020* |
Hematological profiles of newborns from different types of HDP
Hematological parameters | Gestational hypertension (n = 39) | Preeclampsia/ eclampsia (n = 39) | Chronic hypertension (n = 38) | Superimposed Preeclampsia (n = 38) | P-value | |
---|---|---|---|---|---|---|
TLC (10*3/µL)a | 12.3 ± 3.6 | 12.1 ± 3.1 | 10.8 ± 5.2 | 10.5 ± 4.8 | 0.179 | |
ANC (10*3/µL) a | 7.2 ± 2.9 | 6.9 ± 2.2 | 6.7 ± 3.9 | 5.7 ± 3.9 | 0.250 | |
RBC (10*6/µL)a | 4.36 ± 0.45 | 4.37 ± 0.45) | 4.45 ± 0.36 | 4.48 ± 0.35 | 0.448 | |
Hematocrit (%) a | 48.4 ± 6.8 | 49.0 ± 3.5 | 49.3 ± 4.1 | 49.7 ± 5.9 | 0.756 | |
MCV (FL)a | 109.4 ± 7.4 | 110.3 ± 4.4 | 110.4 ± 5.5 | 110.7 ± 11.2 | 0.888 | |
MCHC (g/dl)a | 33.8 ± 1.0 | 33.9 ± 1.2 | 34.2 ± 1.4 | 34.3 ± 1.5 | 0.473 | |
RDW-SD (FL)a | 70.6 ± 11.7 | 71.6 ± 8.4 | 72.8 ± 8.8 | 72.9 ± 11.6 | 0.754 | |
NRBC/100 WBCa | 6 ± 2 | 6 ± 2 | 8 ± 3 | 9 ± 4 | < 0.001* | |
MRV(FL)a | 144.9 ± 10.2 | 144.7 ± 10.6 | 141.6 ± 9.0 | 143.3 ± 7.6 | 0.391 | |
Platelet (10*3/µL) a | 266 ± 64 | 258 ± 50 | 182 ± 84 | 176 ± 89 | < 0.001* | |
ALC (10*3/µL) b | 3.1 (2.6, 4.4) | 3.4 (2.6, 4) | 2.85 (1.5, 3.6) | 2.65 (2.2, 3.8) | 0.182 | |
Monocyte (10*3/µL) b | 1.1 (0.7, 1.4) | 1 (0.7, 1.4) | 0.9 (0.7, 1.1) | 0.9 (0.7,1.2) | 0.456 | |
Eosinophil (10*3/µL)b | 0.3 (0.2, 0.3) | 0.2 (0.1, 0.4) | 0.1 (0.1, 0.3) | 0.2 (0.1,0.3) | 0.188 | |
Basophil (10*3/µL)b | 0.2 (0.1, 0.2) | 0.1 (0.1, 0.2) | 0 0.1 (0.1, 0.2) | 0.1(0.1,0.2) | 0.511 | |
Hgb (g/dL)b | 16.5 (15.7, 17.5) | 16.7 (15.9, 17.5) | 16.75 (14.8, 17.5) | 17.15 (15.9,17.7) | 0.681 | |
MCH (pg) b | 37.5 (36.4, 38.4) | 37.7 (36.1, 38.4) | 37.9 (36.4, 38.5) | 38.25 (37.7,38.8) | 0.145 | |
RDW (%) b | 17.8 (17.3, 19.3) | 18.5 (17.8, 19.5) | 18.7 (17.2, 19.6) | 18.9 (17.6, 19.4) | 0.454 | |
MPV (FL)b | 8.4 (8.0, 9.2) | 8.3 (7.6, 8.6) | 8.2 (7.8,8.7) | 8.1 (7.8, 8.4) | 0.291 | |
Reticulocyte (%) b | 3.42 (3.01, 3.95) | 3.31 (2.85, 3.99) | 3.16 (2.86, 3.91) | 3.3(3.05, 3.92) | 0.577 | |
Reticulocyte (FL) b | 0.15 (0.13,0.18) | 0.15 (0.12,0.18) | 0.14 (0.12, 0.17) | 0.14 (0.12,0.17) | 0.619 | |
IRF b | 0.63 (0.61, 0.65) | 0.65 (0.59, 0.67) | 0.63 (0.61, 0.65) | 0.63 (0.60, 0.65) | 0.983 |
Hematological parameters | Types of HDP | Gestational hypertension (P-value) | Preeclampsia/ eclampsia (P-value) | Chronic hypertension (P-value) |
---|---|---|---|---|
Platelet | Gestational hypertension | 1.000 | 1.000 | < 0.001* |
Preeclampsia/ ecalmpsia | 1.000 | 1.000 | < 0.001* | |
Superimposed Preeclampsia | < 0.001* | < 0.001* | 1.000 | |
NRBC/ 100 WBC | Gestational hypertension | 1.000 | 1.000 | 0.019* |
Preeclampsia/ eclampsia | 1.000 | 1.000 | 0.003* | |
Superimposed Preeclampsia | < 0.001* | < 0.001* | 1.000 |
The correlation of Independent variables with hematological profiles of cases
Hematological parameters | BMI (P-value) | DBP(P-value) | SBP (P-value) | Gestational age (p-value) | Newborn’s weight (p-value) | Duration of HDP (P-value) |
---|---|---|---|---|---|---|
WBC r | 0.154 (0.055) | -0.164 (0.042*) | -0.247 (0.002*) | 0.2082 (0.009*) | 0.1804 (0.025*) | -0.1715 (0.033*) |
ANC r | 0.2063 (0.010*) | -0.1868 (0.020*) | -0.2690 (< 0.001*) | 0.2634 (0.001*) | 0.214 (0.007*) | -0.0698 (0.389) |
RBC count r | -0.0394 (0.627) | -0.1216 (0.133) | -0.0178 (0.826) | 0.0444 (0.584) | 0.0728 (0.369) | -0.0732 (0.366) |
Hematocrit r | -0.0640 (0.340) | -0.0679 (0.402) | 0.0033 (0.967) | -0.0927 (0.252) | 0.0560 (0.490) | -0.0432 (0.595) |
MCV r | -0.0458 (0.572) | 0.0526 (0.517) | 0.0973 (0.229) | -0.1535 (0.057) | -0.0868 (0.284) | -0.0351 (0.665) |
MCHC r | 0.0284 (0.726) | 0.0005 (0.995) | 0.0191 (0.814) | 0.2029 (0.011*) | -0.0114 (0.888) | 0.0826 (0.308) |
RDW-SD r | -0.0336 (0.678) | 0.0357 (0.660) | 0.0355 (0.662) | -0.1958 (0.014) | -0.0218 (0.788) | -0.0511 (0.529) |
NRBC r | -0.2026 (0.011*) | 0.1712 (0.033*) | 0.2149 (0.007*) | -0.3252 (< 0.001*) | -0.2582 (0.001*) | 0.1812 (0.024*) |
MRV r | 0.0455 (0.575) | 0.0259 (0.749) | -0.0508 (0.531) | 0.0316 (0.697) | 0.0701 (0.387) | -0.1018 (0.209) |
Platelet r | 0.4446 (< 0.001*) | -0.3222 (< 0.001*) | -0.2751 (< 0.001*) | 0.3118 (< 0.001*) | 0.4517(< 0.001*) | -0.2606 (0.001*) |
MPV r | -0.0990 (0.221) | 0.1848 (0.021*) | 0.1257 (0.120) | -0.1878 (0.019) | -0.0455 (0.575) | 0.1965 (0.014*) |
ALC rho | -0.0174 (0.830) | -0.0283 (0.727) | -0.0625 (0.441) | 0.0520 (0.521) | 0.0821 (0.311) | -0.1230 (0.128) |
Monocyte # rho | 0.2186 (0.006*) | -0.2836 (< 0.001*) | -0.3231 (0.001*) | 0.1655 (0.040*) | 0.302 (< 0.001*) | -0.1813 (0.024*) |
Eosinophil# rho | 0.1857 (0.021*) | -0.2419 (0.002*) | -0.1193 (0.014*) | 0.0770 (0.342) | 0.1632 (0.043*) | -0.0775 (0.339) |
Basophil # rho | 0.0988 (0.223) | -0.2711 (< 0.001*) | -0.2792 (0.001*) | 0.0839 (0.300) | 0.2578 (0.001*) | -0.0712 (0.380) |
Hgb rho | -0.0911 (0.261) | -0.1058 (0.191) | 0.0529 (0.514) | -0.0223 (0.784) | 0.0348 (0.668) | -0.1210 (0.134) |
MCH rho | 0.0012 (0.988) | 0.0664 (0.413) | 0.0414 (0.609) | -0.0421 (0.604) | -0.0152 (0.851) | -0.0162 (0.842) |
RDW rho | 0.0146 (0.857) | 0.0822 (0.310) | 0.0180 (0.824) | -0.0862 (0.287) | 0.0164 (0.840) | -0.0440 (0.588) |
Retic % rho | 0.1121 (0.166) | 0.0008 (0.992) | -0.0147 (0.856) | -0.0143 (0.860) | -0.0145 (0.858) | -0.0509 (0.530) |
Retic #rho | 0.0909 (0.262) | -0.0796 (0.326) | -0.0327 (0.687) | -0.0146 (0.857) | 0.0091 (0.910) | -0.1027 (0.204) |
IRF rho | 0.0317 (0.696) | 0.0113 (0.889) | 0.0317 (0.695) | 0.0346 (0.669) | 0.0215 (0.790) | 0.0749 (0.355) |