Table 1 Socio-demographic and anthropometric characteristics of primary school children in Dar es Salaam, Tanzania
Characteristic | Mean ± SD or N (%) |
|---|---|
Age (years) | 11.1 ± 2.0 |
Age category | |
  ≤ 10 years | 138 (30.9) |
  > 10 years | 308 (69.1) |
Gender | |
 Boys | 209 (46.9) |
 Girls | 237 (53.1) |
Place of residence | |
 Rural | 197 (44.2) |
 Urban | 249 (55.8) |
Body mass (kg) | 34.1 ± 11.8 |
Height (cm) | 142.1 ± 13.3 |
BMI (kg/m2) | 16.6 ± 4.0 |
BMI-defined categories | |
 Underweight | 65 (14.6) |
 Normal | 314 (70.4) |
 Overweight | 44 (9.8) |
 Obese | 23 (5.2) |
SBP (mmHg) | 103.9 ± 10.3 |
DBP (mmHg) | 65.6 ± 8.2 |
Blood pressure categories | |
 Normal BP | 376 (84.3) |
 Pre-hypertension | 22 (4.9) |
 Stage 1 hypertension | 39 (8.8) |
 Stage 2 hypertension | 9 (2.0) |
Elevated blood pressure | |
 Yes | 68 (15.2) |
 No | 398 (84.8) |
Hypertension | |
 Yes | 48 (10.8) |
 No | 378 (89.2) |
Number of adults in the family (≥18 years) | |
 Less than 6 adults | 187 (41.9) |
 6 and above adults | 259 (58.1) |
Number of children in the family (< 18 years) | |
 Less than 3 children | 201 (45.1) |
 3 and above children | 245 (54.9) |
Pocket money to spend at school | |
  ≤ 500 Tanzanian shillings | 315 (70.6) |
  > 500 Tanzanian shillings | 131 (29.4) |