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. 2014 Jul 3;13:251. doi: 10.1186/1475-2875-13-251

Table 9.

Crop-choice determinants of malaria proportion Tobit by age-group

Crops as a proportion of total crop-area
All ages
0 to 4
5 to 9
10 to 19
20 to 39
40 to 59
60 plus
  Coef    P>|t| Coef    P>|t| Coef    P>|t| Coef    P>|t| Coef    P>|t| Coef    P>|t| Coef    P>|t|
Maize
Omitted for Categorical Comparison
 
Other Crops
+
** 0.0180
 
0.3360
 
0.3800
 
0.4770
+
* 0.0530
 
0.3870
 
0.3030
Bananas
 
0.7690
 
0.6890
 
0.8610
 
0.9850
 
0.2130
 
0.3330
 
0.8810
Coffee
 
0.4460
 
0.1210
 
0.4950
 
0.3510
 
0.6660
 
0.1970
 
0.2080
Beans
 
0.1160
 
0.8440
+
** 0.0160
 
0.5470
 
0.1140
 
0.3470
 
0.4360
Cassava
 
0.9390
 
0.2240
 
0.1290
 
0.5110
 
0.8150
 
0.9100
 
0.2140
Groundnuts
 
0.9700
 
0.8470
 
0.8980
 
0.4930
 
0.8520
 
0.5930
 
0.6370
Sweet Potato / Yam
+
** 0.0450
 
0.2310
 
0.4870
+
* 0.0880
 
0.6400
 
0.5010
 
0.5700
Millet
 
0.9360
-
** 0.0150
 
0.2460
 
0.6150
 
0.4160
 
0.4390
 
0.9590
Rice
 
0.9290
 
0.5770
 
0.1410
 
0.4580
 
0.8780
 
0.4550
 
0.1580
Sorghum
 
0.8290
 
0.9050
+
* 0.0720
 
0.9580
 
0.7290
-
** 0.0170
 
0.6790
Tree Crops
 
0.8480
 
0.5970
 
0.4920
+
* 0.0940
 
0.9010
 
0.8580
 
0.1840
Fallow
 
0.4790
 
0.4770
 
0.2480
 
0.5770
 
0.2590
 
0.5590
 
0.3260
Bush
 
0.5970
 
0.4950
 
0.4340
 
0.6010
 
0.7270
 
0.7840
 
0.2660
Pasture
 
0.4910
 
0.7400
 
0.3180
 
0.5510
 
0.9000
 
0.1540
 
0.2080
Parcel Size   0.2030   0.1920   0.4700   0.5740   0.4370   0.4680   0.7780

*P < 0.05.

**P < 0.01.

***P < 0.001.

+A positive correlation between malaria risk and the explanatory variable.

-A negative correlation between malaria risk and the explanatory variable.