Background
Methods
Data source
Generalized linear mixed model (GLMM)
Specification of a GLMM
Results
Exploratory data analysis
Covariates | Level | Stunting N (%) | P-value | |
---|---|---|---|---|
Not stunted | Stunted | |||
Sex of child | Male | 2760(62) | 1695 (38) | 0.001 |
Female | 2803 (65.4) | 1485 (34.6) | ||
Current age of child in months | 0–11 months | 1620 (86.9) | 244 (13.1) | 0.000 |
12–23 months | 1086 (61.5) | 679 (38.5) | ||
24–59 months | 2857 (55.9) | 2257 (44.1) | ||
Preceding birth interval (months) | less than 24 months | 2242 (62.8) | 1329 (37.2) | 0.000 |
24–47 months | 2156 (62.3) | 1307 (37.7) | ||
48 and above months | 1165 (68.2) | 544 (31.8) | ||
Mother’s BMI | greater than or equal to18.5 | 1266 (59.0) | 878 (41.0) | 0.000 |
less than 18.5 | 4297 (65.1) | 2302 (34.9) | ||
Wealth index combined | Poor | 2726 (58.4) | 1939 (41.6) | 0.000 |
Middle | 789 (62.5) | 473 (37.5) | ||
Rich | 2048 (72.7) | 768 (27.3) | ||
Source of drinking water | piped | 939 (77.6) | 271 (22.4) | 0.000 |
public tap | 2439 (61.3) | 1543 (38.7) | ||
protected spring | 421 (60.8) | 271 (39.2) | ||
other | 1764 (61.7) | 1095 (38.3) | ||
Currently breastfeeding | No | 1784 (61.8) | 1104 (38.2) | 0.011 |
Yes | 3779 (64.5) | 2076 (35.5) | ||
Type of toilet facility | flush toilet | 286 (81.7) | 64 (18.3) | 0.000 |
latrine | 2917 (65.8) | 1515 (34.2) | ||
no facility | 2360 (59.6) | 1601 (40.4) | ||
Highest educational level | No education | 3325 (59.7) | 2241 (40.3) | 0.000 |
Primary | 1499 (66.2) | 766 (33.8) | ||
Secondary and higher | 739 (81.0) | 173 (19.0) | ||
No | 5346 (62.9) | 3156 (37.1) | ||
Use of internet | Yes | 217 (90.0) | 24 (10.0) | 0.000 |
Results from generalized linear mixed model (GLMM)
Results and interpretations
Model | AIC | BIC | LogLink | Deviance | P-value |
---|---|---|---|---|---|
One RIM | 10,419.0 | 10,560.5 | − 5189.5 | 10,379.0 | |
Two RIM | 10,337.5 | 10,486.1 | − 5147.8 | 10,295.5 | 0.000 |
Effect | DF | F-value | P-value |
---|---|---|---|
Child age | 2 | 209.83 | < 0.001 |
Sex of child | 1 | 11.66 | < 0.001 |
Preceding birth interval | 2 | 0.74 | 0.479 |
Mother’s body mass index(BMI) | 1 | 11.87 | < 0.001 |
Wealth index | 2 | 16.53 | < 0.001 |
Mother education level | 2 | 9.86 | < 0.001 |
Breast feeding | 1 | 13.46 | < 0.001 |
Types of Toilet facility | 2 | 3.26 | 0.038 |
Use of Internet | 1 | 12.90 | < 0.001 |
Source of drinking water | 3 | 1.46 | 0.480 |
Child age: Preceding birth interval | 4 | 2.79 | 0.025 |
BMI: Source of drinking water | 3 | 3.58 | 0.035 |
Covariates | Estimates | S.E | 95% CI | OR | P-value |
---|---|---|---|---|---|
Intercept | −2.16258 | 0.24340 | (−3.380, −2.002) | 0.115 | < 0.001 *** |
Child age (ref = 0–11 months) | |||||
12–23 months | 1.71504 | 0.15198 | (1.413, 2.001) | 5.556 | < 0.001 *** |
24–59 months | 2.01208 | 0.13679 | (1.746, 2.228) | 7.479 | < 0.001 *** |
Preceding birth interval(ref = < 24) | |||||
24–47 months | 0.02248 | 0.16779 | (−0.307, 0.351) | 1.023 | 0.893 |
48 and above months | 0.29244 | 0.18766 | (− 0.055, 0.680) | 1.34 | 0.119 |
Sex of child (Female) | − 0.17457 | 0.04912 | (−0.271, − 0.079) | 0.84 | < 0.001 *** |
BMI (less than 18.5) | − 0.20876 | 0.05841 | (−1.064, − 0.200) | 0.812 | < 0.001 *** |
Wealth index (ref = poor) | |||||
Middle | −0.23438 | 0.08017 | (−0.399, − 0.084) | 0.791 | < 0.001 *** |
Rich | − 0.43440 | 0.07681 | (−0.571, − 0.256) | 0.648 | < 0.001 *** |
Mother education (ref = no education) | |||||
Primary | −0.14040 | 0.06230 | (−0.251, − 0.006) | 0.869 | 0.024 * |
Secondary and higher | −0.44999 | 0.11318 | (− 0.636, − 0.186) | 0.638 | < 0.001 *** |
Breast (No) | 0.20309 | 0.05585 | (0.093, 0.312) | 1.225 | < 0.001 *** |
Types of toilet facility (ref = flush) | |||||
Latrine | 0.33974 | 0.16403 | (0.006, 0.638) | 1.405 | 0.038 * |
No facility | 0.42179 | 0.16824 | (0.064, 0.726) | 1.523 | 0.012* |
Use of internet (Yes) | −0.83650 | 0.24302 | (−1.289, − 0.332) | 0.433 | < 0.001 *** |
Source of drinking water (ref = piped) | |||||
Public tap | 00.17173 | 0.17386 | (−0.668, 0.219) | 1.187 | 0.323 |
Protected spring | 0.05793 | 0.24192 | (−0.903, 0.165) | 1.059 | 0.810 |
Other | 0.29269 | 0.17915 | (−0.608, 0.311) | 1.340 | 0.102 |
Interaction effects
Covariates | Estimates | S.E | 95% CI | Odds ratio | P-value |
---|---|---|---|---|---|
Age and Preceding birth interval (Ref = 0–11 months: PBI less 24) | |||||
12–23 months:PBI24–47 months | −0.07958 | 0.20433 | (−0.468, 0.334) | 0.923 | 0.696 |
24–59 months:PBI24–47 months | − 0.16060 | 0.17972 | (− 0.511, 0.194) | 0.852 | 0.371 |
12–23 months:PBI48 and above months | −0.62538 | 0.23360 | (−1.086, − 0.169) | 0.535 | 0.007 ** |
24–59 months:PBI48 and above months | −0.61601 | 0.20596 | (−1.034, − 0.227) | 0.540 | 0.002** |
Source of drinking water and mother’s BMI (Ref = ≥ 18.5 BMI: Piped water) | |||||
Less than 18.5: public tap | 0.61155 | 0.19454 | (0.171, 1.001) | 1.843 | 0.001** |
Less than 18.5: protected spring | 0.74230 | 0.26869 | (0.174, 1.321) | 2.101 | 0.005** |
Less than 18.5: other | 0.39204 | 0.20050 | (0.057, 0.799) | 1.478 | 0.050* |
Random effects | Variance | SD | |||
Cluster | 0.2190 | 0.4680 | |||
Region | 0.1054 | 0.3247 | |||
Residual | 1.11 | 1.05 |