Table A1.
Output of the principal component analysis displaying the proportion of variance of each variable explained by the first component
| Variable | Proportion of variance |
|---|---|
| Household size | 0.030 |
| Crowding | −0.197 |
| Asset ownership | |
| Bicycle | 0.077 |
| Cart drawn by animal | 0.027 |
| Motorcycle | 0.136 |
| Clock | 0.028 |
| Radio | 0.200 |
| Television | 0.288 |
| Mobile telephone | 0.071 |
| Refrigerator/freezer | 0.179 |
| Housing characteristics | |
| No. of rooms | 0.195 |
| Electricity | 0.315 |
| Grated windows | 0.170 |
| Grated door | 0.102 |
| Energy for cooking: Electricity | 0.086 |
| Energy for cooking: Charcoal | −0.005 |
| Energy for cooking: Firewood | −0.024 |
| Energy for cooking: Gas | 0.065 |
| Energy for cooking: Other | −0.233 |
| Floor: Cement | 0.369 |
| Floor: Unbeaten land | −0.369 |
| Walls: Cement | 0.164 |
| Walls: Wood or iron sheets | −0.007 |
| Walls: Reeds/sticks/bamboo/palm | −0.297 |
| Walls: Adobe blocks | 0.034 |
| MapSan intervention | 0.127 |
| Water source: Tap inside the house | 0.043 |
| Water source: Tap in the compound | 0.232 |
| Water source: Public tap/fountain | 0.046 |
| Water source: Neighbour's tap | −0.263 |
| Water source: Other | 0.012 |
Note. The first principal component accounts for 15% of the variance, with an eigenvalue of 4.66.