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Table 2 Logistic regression output of determinants of LBW birth

From: The risk of low birth weight and associated factors in West Bengal, India: a community based cross-sectional study

Variables Category COR (95th CI) p value AOR (95th CI) p value
Mother age (years) < 20 1.44 (1.17-1.76) 0.000 1.21 (0.94-1.54) 0.138
20-29 Reference Reference
≥ 30 0.98 (0.64-1.49) 0.911 1.05 (0.64-1.73) 0.837
Mother height (cm) < 150 1.37 (1.12-1.67) 0.002 1.28 (1-1.65) 0.05
≥ 150 Reference Reference
Mother weight (kg) < 45 2.28 (1.89-2.76) 0.000 1.7 (1.27-2.29) 0.000
≥ 45 Reference Reference
Mother BMI (kg/m2) < 18.5 1.64 (1.35-2) 0.000 1.12 (0.82-1.52) 0.485
18.5-24.99 Reference Reference
> 25 0.54 (0.37-0.8) 0.002 0.62 (0.41-0.95) 0.027
Hemoglobin level (g/dl) < 12 2.9 (2.31-3.64) 0.000 3.33 (2.59-4.28) 0.000
≥ 12 Reference Reference
Mother BP Hypotension 1.14 (0.93-1.39) 0.194 0.91 (0.72-1.13) 0.381
Normotension Reference Reference
Hypertension 1.87 (1.33-2.62) 0.000 1.69 (1.09-2.61) 0.019
Gestational period < 37 weeks 2.13 (1.68-2.69) 0.000 1.93 (1.49-2.5) 0.000
≥ 37 weeks Reference Reference
Parity Primiparous 1.36 (1.11-1.68) 0.004 1.18 (0.92-1.52) 0.191
Pauciparous Reference Reference
Multiparous 1.59 (1.1-2.29) 0.014 2.31 (1.14-3.51) 0.000
Inter-pregnancy interval < 2 year 1.11 (0.85-1.44) 0.434  
> 2 year Reference
History of chronic medical illness Yes 2.39 (1.69-3.4) 0.000 2.09 (1.38-3.15) 0.000
No Reference Reference
Illness during current pregnancy Yes 1.43 (1.01-2.03) 0.044 1.34 (0.89-2.02) 0.16
No Reference Reference
Dietary counseling during pregnancy Yes Reference Reference
No 1.29 (1.04-1.58) 0.018 0.97 (0.66-1.42) 0.886
Additional diet during pregnancy Yes Reference Reference
No 1.32 (1.09-1.6) 0.004 1.45 (1.03-2.03) 0.032
Hard physical work during pregnancy Yes 1.66 (1.27-2.17) 0.000 1.07 (0.58-1.99) 0.818
No Reference Reference
Addition habit Yes 1.15 (0.65-2.03) 0.629  
No Reference
Alcohol intake during pregnancy Yes 1.13 (0.51-2.5) 0.77  
No Reference
Fertility desire Yes Reference  
No 1.05 (0.77-1.41) 0.766
Iron folic acid tablet consumption No 1.95 (1.54-2.46) 0.000 3.86 (2.54-5.87) 0.000
Yes Reference Reference
No. of iron folic acid tablet consumption < 100 1.86 (1.54-2.25) 0.000 1.48 (1.18-1.87) 0.001
≥ 100 Reference Reference
ANC follow-up status No 1.45 (1.03-2.03) 0.034 1.35 (0.99-1.74) 0.037
Yes Reference Reference
No. of ANC visit < 3 1.37 (1.11-1.7) 0.004 1.4 (1.04-1.87) 0.025
≥ 3 Reference Reference
Time of 1st ANC visit 1st trimester Reference  
2nd trimester 1.17 (0.96-1.43) 0.123
3rd trimester 1.29 (0.76-2.2) 0.343
Child sex Male Reference  
Female 1.1 (0.91-1.33) 0.305
Residence Rural 1.54 (1.18-2.02) 0.002 2.6 (1.43-4.08) 0.000
Urban Reference Reference
Religion Hindu 1.19 (0.86-1.66) 0.291  
Muslim Reference
Cast General Reference Reference
SC/ST 1.77 (1.42-2.21) 0.000 0.99 (.74-1.34) 0.972
Educational status of father Illiterate/ able to sign 1.84 (1.4-2.43) 0.000 1.12 (0.7-1.78) 0.633
Primary 1.02 (0.83-1.25) 0.833 0.81 (0.61-1.08) 0.155
Secondary or above Reference Reference
Educational status of mother Illiterate/able to sign 1.75 (1.3-2.37) 0.000 1.06 (0.66-1.68) 0.822
Primary 1.16 (0.95-1.43) 0.142 1.05 (0.81-1.35) 0.729
Secondary or above Reference Reference
Father occupation Laborers/cultivator 1.46 (1.19-1.79) 0.000 1.05 (0.79-1.39) 0.756
Business/service Reference Reference
Mother occupation Cultivator 1.91 (1.13-3.22) 0.016 0.89 (0.41-1.94) 0.763
Housewife 1.1 (0.69-1.75) 0.69 0.87 (0.48-1.58) 0.658
Service Reference Reference
Housing condition Kanch 1.18 (0.95-1.46) 0.123  
Semi pacca 0.99 (0.77-1.27) 0.945
Pacca Reference
Availability of latrine No 1.78 (1.39-2.28) 0.000 1.18 (0.84-1.66) 0.33
Yes Reference Reference
Income (Rs) < 1000 1.64 (1.16-2.31) 0.005 1.12 (0.71-1.77) 0.63
1000-3000 1.25 (0.91-1.73) 0.165 1.00 (0.66-1.51) 0.994
> 3000 Reference Reference
Family size ≤ 4 1.11 (0.92-1.34) 0.284  
> 4 Reference
Socioeconomic status Lower/upper lower 1.81 (1.34-2.43) 0.000 1.64 (0.98-2.75) 0.062
Middle/lower middle 1.61 (1.18-2.2) 0.002 1.52 (0.99-2.33) 0.058
Upper/upper middle Reference Reference