From: The relationship between seasonality, latitude and tuberculosis notifications in Pakistan
 | Peak /Trough quarter | Mean seasonal amplitude (%), 95% CI | Mean difference (%), 95% CI, p | Type III test for group difference |
---|---|---|---|---|
Overall | Q2/Q4 | 25.5 (25.0–25.9) | NA |  |
Latitude |  |  |  | < 0.001 |
 24.5- < 26.5 | Q2/Q4 | 29.5 (29.3–29.7) | 7.7 (6.3, 9.2), < 0.001 |  |
 26.5- < 28.5 | Q2/Q4 | 24.3 (23.7–24.8) | 2.5 (1.1, 4.0), < 0.001 |  |
 28.5- < 30.5 | Q2/Q4 | 23.9 (23.4–24.3) | 2.1 (0.7, 3.6), 0.004 |  |
 30.5- < 32.5 | Q2/Q4 | 24.3 (23.0–25.5) | 2.5 (1.1, 4.0), < 0.001 |  |
 32.5- < 34.5 | Q2/Q4 | 24.6 (23.2–25.9) | 2.8 (1.4, 4.3), < 0.001 |  |
 34.5- < 36.5 | Q2/Q4 | 21.7 (19.6–23.9) | 0.0 (reference) |  |
Type of TB |  |  |  | < 0.001 |
 Pulmonary TB | Q2/Q4 | 21.6 (21.4–21.8) | 0.0 (reference) |  |
 Extrapulmonary TB | Q2/Q4 | 32.6 (32.1–33.1) | 11.0 (10.6, 11.5), < 0.001 |  |