Table 2. Effect size of combinations of interventions.
Intervention 1 | Intervention 2 | Effect size 1 | Effect size 2 | Product of effect sizes | Effect size of combination | Ratio of combination to product |
---|---|---|---|---|---|---|
ITN, moderate | MDA, low season | 6.845 | 1.594 | 10.91 | 10.98 | 1.006 |
efficacy | MDA, at peak | 6.845 | 1.459 | 9.99 | 10.08 | 1.009 |
Vaccine, mod. triennial | 6.845 | 1.433 | 9.81 | 9.81 | 1.001 | |
Vaccine, mod. annual | 6.845 | 1.484 | 10.16 | 10.18 | 1.002 | |
Vaccine, high triennial | 6.845 | 2.642 | 18.09 | 18.11 | 1.001 | |
Vaccine, high annual | 6.845 | 2.985 | 20.44 | 20.62 | 1.009 | |
ITN, high | MDA, low season | 21.98 | 1.594 | 35.04 | 35.33 | 1.008 |
efficacy | MDA, at peak | 21.98 | 1.459 | 32.07 | 32.53 | 1.014 |
Vaccine, mod. triennial | 21.98 | 1.433 | 31.50 | 31.52 | 1.001 | |
Vaccine, mod. annual | 21.98 | 1.484 | 32.62 | 32.71 | 1.003 | |
Vaccine, high triennial | 21.98 | 2.642 | 58.08 | 58.19 | 1.002 | |
Vaccine, high annual | 21.98 | 2.985 | 65.62 | 66.44 | 1.012 | |
MDA, low | Vaccine, mod. triennial | 1.594 | 1.433 | 2.284 | 2.276 | 0.996 |
season | Vaccine, mod. annual | 1.594 | 1.484 | 2.365 | 2.339 | 0.989 |
Vaccine, high triennial | 1.594 | 2.642 | 4.211 | 4.156 | 0.987 | |
Vaccine, high annual | 1.594 | 2.985 | 4.758 | 4.579 | 0.962 |
Low season MDA means three months before the peak of the season. “Vaccine” refers to a pre-erythrocytic vaccine six weeks before the seasonal peak, “mod” and “high” refer to a moderate or high efficacy vaccine, and annual and triennial vaccines have one and three year half-lives respectively. There is a three month high season, and interventions are at 80% coverage except the high efficacy vaccine which is 90%.