Subgroups | No. of studies | Incidence % (95 % CI) | I 2 (%) | P value |
---|---|---|---|---|
Awareness (all studies) | ||||
 Age |  |  |  | 0.698 |
  CS | 12 | 19.07 (11.72,27.71) | 99.0 |  |
  A | 27 | 15.14 (11.11,19.68) | 99.1 |  |
  P | 5 | 15.62 (13.13,18.28) | 85.4 |  |
 Sex |  |  |  | 0.033 |
  Fa | 23 | 17.39 (13.06,22.20) | 98.8 |  |
  F, Ma | 17 | 18.55 (14.14,23.42) | 98.8 |  |
  Mb | 3 | 1.82 (0.50,11.20) | 98.5 |  |
 Sample method |  |  |  | 0.504 |
  Randomized | 16 | 18.88 (13.60,24.80) | 99.0 |  |
  Cluster | 16 | 13.74 (7.66,21.24) | 99.1 |  |
  Convenience | 12 | 16.03 (12.12,20.36) | 97.7 |  |
 Ethnicity |  |  |  | 0.017 |
  Han | 29 | 20.17 (16.42,24.20) | 98.3 |  |
  Mixed | 15 | 9.61 (5.95,14.03) | 99.0 |  |
 Region |  |  |  | 0.031 |
  EDAa | 20 | 17.57 (13.36,22.21) | 98.0 |  |
  CLDAa | 12 | 17.78 (12.18,24.19) | 97.6 |  |
  WUDAb | 5 | 1.80 (0.02,6.33) | 98.9 |  |
Knowledge (all studies) | ||||
 Age |  |  |  | 0.171 |
  CS | 10 | 40.94 (20.11,63.64) | 99.8 |  |
  A | 11 | 15.52 (10.22,21.69) | 98.7 |  |
  P | 1 | 16.27 |  |  |
 Sex |  |  |  | 0.841 |
  F | 13 | 27.2 (17.56,38.07) | 99.5 |  |
  F, M | 9 | 24.51 (10.28,42.45) | 99.7 |  |
  M | 0 |  |  |  |
 Sample method |  |  |  | 0.757 |
  Randomized | 11 | 29.87 (13.02,50.19) | 99.7 |  |
  Cluster | 7 | 19.16 (12.41,26.98) | 98.7 |  |
  Convenience | 0 |  |  |  |
 Ethnicity |  |  |  | 0.893 |
  Han | 14 | 25.40 (14.41,38.28) | 99.4 |  |
  Mixed | 8 | 27.46 (13.87,43.62) | 99.8 |  |
 Region |  |  |  | 0.837 |
  EDA | 8 | 19.58 (11.76,28.82) | 98.6 |  |
  CLDA | 9 | 27.80 (11.97,47.20) | 99.7 |  |
  WUDA | 2 | 13.96 (2.44,32.70) | 99.7 |  |
Acceptability (for themselves) | ||||
 Age |  |  |  | 0.338 |
  CS | 10 | 71.71 (64.06,78.77) | 97.9 |  |
  A | 24 | 64.82 (52.80,75.95) | 99.9 |  |
  P | 2 | 44.92 (26.00,64.63) | 98.7 |  |
 Sex |  |  |  | 0.208 |
  F | 21 | 68.50 (54.40,81.05) | 99.9 |  |
  F, M | 15 | 61.65 (52.47,70.43) | 99.4 |  |
  M | 0 |  |  |  |
 Sample method |  |  |  | 0.022 |
  Randomized | 12 | 70.42 (63.63,76.79) | 98.8 |  |
  Clustera | 12 | 72.45 (52.22,88.76) | 99.9 |  |
  Convenienceb | 12 | 53.53 (41.95,64.92) | 99.5 |  |
 Ethnicity |  |  |  | 0.939 |
  Han | 24 | 65.14 (53.62,75.83) | 99.8 |  |
  Mixed | 12 | 66.76 (51.25,80.60) | 99.7 |  |
 Region |  |  |  | 0.407 |
  EDA | 14 | 65.31 (54.68,75.21) | 99.2 |  |
  CLDA | 12 | 64.10 (46.56,79.87) | 99.7 |  |
  WUDA | 3 | 82.15 (35.87,99.68) | 99.9 |  |
Acceptability (for daughters) | ||||
 Age |  |  |  | 0.014 |
  CS | 1 | 38.61 |  |  |
  Aa | 10 | 64.72 (55.57,73.36) | 99.2 |  |
  Pb | 3 | 33.78 (26.26,41.74) | 88.3 |  |
 Sex |  |  |  | 0.068 |
  F | 8 | 67.04 (57.46,75.96) | 99.2 |  |
  F, M | 4 | 46.06 (27.07,65.66) | 97.6 |  |
  M | 0 |  |  |  |
 Sample method |  |  |  | 0.038 |
  Randomizeda | 5 | 72.75 (67.66,77.56) | 92.9 |  |
  Clusterb | 6 | 48.54 (32.37,64.88) | 99.4 |  |
  Convenience | 3 | 56.36 (34.63,76.88) | 98.8 |  |
 Ethnicity |  |  |  | 0.253 |
  Han | 8 | 57.84 (47.89,67.48) | 99.5 |  |
  Mixed | 6 | 61.04 (44.36,76.50) | 99.3 |  |
 Region |  |  |  | 0.689 |
  EDA | 6 | 59.03 (41.51,75.44) | 98.9 |  |
  CLDA | 4 | 56.36 (37.18,74.60) | 99.3 |  |
  WUDA | 2 | 51.49 (33.81,68.97) | 99.3 |  |