From: Analysis on external competency assessment for malaria microscopists in China
 | Combination 1 | Combination 2 | Combination 3 | Combination 4 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ages | Years | Cases | Ages | Yearns | Cases | Ages | Years | Cases | Ages | Yearns | Cases | |
Sep 2017 | × | × | × | × | × | × | × | × | × | × | × | × |
Mar 2018 | × | × | × | × | × | × | O | O | O | × | × | × |
Nov 2018 | O | O | O | × | × | × | × | × | × | × | × | × |
No. of values | 24 | 24 | 21a | 36 | 36 | 32ab | 24 | 24 | 22 | 36 | 36 | 32ab |
Average | 38 | 11 | 61 | 38 | 12 | 108 | 39 | 15 | 133 | 38 | 12 | 108 |
95% confidence interval | ||||||||||||
 Lower | 35 | 7 | 23 | 36 | 9 | 65 | 37 | 11 | 79 | 36 | 9 | 65 |
 Upper | 40 | 14 | 99 | 40 | 14 | 152 | 42 | 18 | 188 | 40 | 14 | 152 |