Table 1. Demographic and socio-economic characteristics of households and household heads participating in the baseline and follow-up surveys.
| Baseline (2/2006) | Follow-up (2/2007) | |||||
| A | B | p (A vs. B) | A | B | p (A vs. B) | |
| General characteristics | ||||||
| No of HH | 480 | 572 | 480 | 570 | ||
| Median no of rooms (range) | 3 (1–28) | 3 (1–29) | n.s. | 3 (1–19) | 3 (1–23) | n.s. |
| No HH with electricity (%) | 2 (0.4) | 23 (4.0) | <0.001 | 4 (0.8) | 31 (5.4) | <0.001 |
| No HH with water pipes (%) | 0 (0) | 3 (0.5) | n.s. | 1 (0.2) | 0 (0) | n.s. |
| No of inhabitants (mean/HH) | 4426 (9.2) | 5539 (9.7) | n.s. | 4103 (8.5) | 5027 (8.8) | n.s. |
| No of children<5 ys (%) | 830 (18) | 1048 (19) | n.s. | 771 (19) | 979 (19) | n.s. |
| No of pregnant women (%) | 72 (1.6) | 100 (1.8) | n.s. | 107 (2.6) | 105 (2.1) | n.s. |
| Head of HH characteristics | ||||||
| Male (%) | 456 (95) | 546 (95) | n.s. | 447 (93) | 541 (95) | n.s. |
| Ethnicity (%) | ||||||
| Bwaba | 246 (51) | 193 (34) | <0.001 | 250 (52) | 200 (35) | <0.001 |
| Marka | 132 (28) | 170 (30) | n.s. | 139 (29) | 180 (32) | n.s. |
| Mossi | 51 (11) | 40 (7) | 0.047 | 46 (10) | 32 (6) | 0.018 |
| Peulh | 36 (8) | 66 (12) | 0.028 | 37 (8) | 68 (12) | 0.023 |
| Samo | 7 (1) | 42 (7) | <0.001 | 7 (1) | 44 (8) | <0.001 |
| Other | 7 (1) | 61 (11) | <0.001 | 1 (0.2) | 46 (8) | <0.001 |
| Religion (%) | ||||||
| Muslim | 195 (41) | 332 (58) | <0.001 | 194 (40) | 339 (59) | <0.001 |
| Catholic | 149 (31) | 149 (26) | n.s. | 151 (31) | 144 (25) | 0.028 |
| Protestant | 59 (12) | 28 (5) | <0.001 | 57 (12) | 32 (6) | <0.001 |
| Animist | 73 (15) | 62 (11) | 0.041 | 77 (16) | 55 (10) | 0.002 |
| Other | 1 (0.2) | 1 (0.2) | n.s. | 1 (0.2) | 0 | n.s. |
| Literacy (%) | ||||||
| Formal school | 61 (13) | 84 (15) | n.s. | 70 (15) | 94 (16) | n.s. |
| Koran school | 47 (10) | 84 (15) | 0.019 | 32 (7) | 70 (12) | 0.002 |
| Alphabetic course | 47 (10) | 40 (7) | n.s. | 86 (18) | 47 (8) | <0.001 |
| Marital status (%) | ||||||
| Single | 8 (2) | 3 (1) | n.s. | 1 (0.2) | 5 (1) | n.s. |
| Monogamous marriage | 313 (65) | 388 (68) | n.s. | 302 (63) | 382 (67) | n.s. |
| Polygamous marriage | 125 (26) | 142 (25) | n.s. | 136 (28) | 143 (25) | n.s. |
| Divorced | 10 (2) | 3 (1) | 0.026 | 4 (1) | 7 (1) | n.s. |
| Widowed | 24 (5) | 36 (6) | n.s. | 37 (8) | 33 (6) | n.s. |
HH = household; No = number; ITN = insecticide-treated bed net; A = intervention A (social marketing program of ITNs+free distribution of ITNs to pregnant women in health centres); B = intervention B (social marketing program of ITNs); information on ethnicity and religion was missing in a few cases; n.s. = non significant (p<0.05).