Table 5.
Mean health (standard deviation) score according to the SF-12 questionnaire among 238 children visiting two schools in Yunnan province, P.R. China, stratified by helminth infection (A. lumbricoides, hookworm, T. trichiura) and school.
| Parameter | Obs. | Dimension | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| PF | RF | BP | GH | V | SF | RE | MH | PCS | MCS | ||
| A. lumbricoides | |||||||||||
| Bulangshan | |||||||||||
| Not infected | 46 | 76 (24) | 57 (41) | 73 (20) | 69 (27) | 45 (27) | 67 (27) | 55 (42) | 59 (18) | 66 (26) | 57 (25) |
| Infected | 98 | 75 (24) | 53 (40) | 76 (16) | 72 (26) | 54 (28) | 72 (23) | 51 (42) | 64 (19) | 64 (25) | 58 (25) |
| Pu'er | |||||||||||
| Not infected | 85 | 78 (23) | 68 (40)a | 69 (17) | 72 (29) | 62 (21) | 82 (7) | 33 (43) | 68 (16) | 56 (25)a | 51 (24) |
| Infected | 9 | 81 (24) | 33 (43) | 79 (16) | 75 (23) | 61 (22) | 79 (18) | 55 (43) | 65 (18) | 74 (26) | 60 (26) |
| Hookworm | |||||||||||
| Bulangshan | |||||||||||
| Not infected | 34 | 76 (24) | 58 (40) | 73 (20) | 69 (26) | 46 (27) | 68 (26) | 56 (41) | 58 (18)a | 67 (25) | 57 (24) |
| Infected | 110 | 74 (26) | 47 (43) | 76 (17) | 74 (27) | 54 (29) | 69 (25) | 46 (43) | 69 (18) | 61 (28) | 57 (27) |
| Pu'er | |||||||||||
| Not infected | 64 | 73 (26) | 63 (41) | 75 (11) | 73 (23) | 56 (20) | 77 (19) | 50 (42) | 62 (21) | 68 (25) | 56 (25) |
| Infected | 30 | 84 (22) | 65 (41) | 79 (17) | 75 (24) | 64 (23) | 80 (17) | 55 (44) | 67 (16) | 74 (27) | 61 (26) |
| T. trichiura | |||||||||||
| Bulangshan | |||||||||||
| Not infected | 44 | 76 (24) | 59 (40) | 74 (21) | 70 (27) | 47 (28) | 68 (27) | 58 (41) | 60 (19) | 68 (25) | 59 (25) |
| Infected | 100 | 74 (25) | 48 (42) | 75 (14) | 69 (27) | 50 (26) | 69 (23) | 44 (42) | 62 (19) | 61 (27) | 53 (24) |
| Pu'er | |||||||||||
| Not infected | 81 | 83 (21) | 65 (43) | 77 (16) | 79 (20) | 62 (21) | 78 (15) | 58 (49) | 67 (15) | 74 (30) | 62 (26) |
| Infected | 13 | 80 (24) | 64 (41) | 78 (16) | 74 (24) | 61 (23) | 79 (18) | 52 (43) | 65 (19) | 72 (26) | 59 (26) |
a Significant at P < 0.05 (Kruskal-Wallis test with 1 d.f.)
PF, physical function; RF, role function; BP, bodily pain; GH, general health; V, vitality; SF, social functioning; RE, role emotional; MH, mental health; PCS, physical component summary; MCS, mental component summary