Table 1.
| a. Demographic information for Guinea-Bissau sample* | |||
|---|---|---|---|
| Guinea-Bissau sample | |||
| Case (n = 289) | Control (n = 322) | P-Value | |
| Age (Median, SE)1 | (33, 1.36) | (37, 0.89) | 0.0017 |
| Sex (% Female, SE)2 | (39.1%, 0.03) | (50%, 0.03) | 0.0068 |
| Ethnic Group: | 14.4% | 18.6% | 0.1124 |
| Balanta | |||
| Fula | 15.1% | 12.4% | |
| Manjago | 19.3% | 9.9% | |
| Pepel | 21.1% | 29.5% | |
| Mancanha | 8.1% | 11.8% | |
| Mandinka | 7.0% | 7.2% | |
| Other3 | 15.1% | 10.6% | |
| b. Demographic Information for The Gambia sample* | |||
|---|---|---|---|
| The Gambia sample | |||
| Case (n = 240) | Control (n = 248) | P-value | |
| Age (Median, SE)1 | (29, 1.11) | (25, 0.60) | <0.0001 |
| Sex (% Female, SE)2 | (31.7%, 0.03) | (29.8%, 0.03) | 0.6617 |
| Ethnic Group: | 5.0% | 5.2% | 0.2634 |
| Serahuli | |||
| Jola | 21.3% | 32.7% | |
| Wolof | 10.8% | 13.7% | |
| Fula | 12.9% | 8.1% | |
| Manjago | 2.1% | 4.0% | |
| Mandinka | 39.6% | 32.3% | |
| Other3 | 8.3% | 4.0% | |
Age is presented in years; Standard Error (SE) of the median was calculated using bootstrapping with 1000 repetitions. P-value presented for this variable is from the Wilcoxon Rank Sum Test.
SE=Standard Error of the proportion of females in each group; p-value presented for this variable is from the test of difference in proportions
Other: this group contains individuals whose ethnic groups made up less than 5% of the total sample of participants. These groups were collapsed into this category.
The p-value presented for the variable “Ethnic Group” is from the Kolmogorov-Smirnov test for equality of distributions. Due to a large number of ties in the data, p-values presented are permutation p-values (n = 1000).
Values in bold are statistically significant (p ≤ 0.05)