Table 5.
Comparison of reliability of self-reported pesticide usea by years of maternal education (≤ 12 years, n=134 and > 12 years n=310), NCCLS, 2001–2006
| Kappa (95% CI)
|
Percent positive (%)(95% CI)
|
Percent negative (%)(95% CI)
|
||||
|---|---|---|---|---|---|---|
| ≤ 12 yrs | > 12 yrs | ≤ 12 yrs | > 12 yrs | ≤ 12 yrs | > 12 yrs | |
| Fleas, ticks | 0.45 (0.29–0.62) | 0.58 (0.49–0.67) | 60 (47–74) | 75 (69–81) | 85 (80–90) | 83 (76–87) |
| Ants, flies, cockroaches | 0.29 (0.12–0.45) | 0.34 (0.23–0.45) | 74 (67–82) | 80 (76–84) | 54 (42–66) | 54 (46–63) |
| Indoor foggers | 0.57 (0.30–0.84) | 0.36 (0.19–0.52) | 60 (35–85) | 42 (27–57) | 97 (94–99) | 93 (91–95) |
| Weeds, insects, plants | 0.49 (0.33–0.65) | 0.47 (0.37–0.57) | 64 (52–77) | 73 (68–79) | 85 (80–91) | 74 (68–79) |
| Professional pest service | 0.51 (0.34–0.69) | 0.58 (0.49–0.67) | 62 (48–77) | 73 (67–80) | 89 (84–93) | 85 (81–88) |
| Professional lawn service | 0.44 (0.20–0.69) | 0.59 (0.49–0.70) | 50 (27–73) | 68 (60–77) | 94 (91–97) | 90 (88–93) |
| Overall | 0.54 (0.47–0.60) | 0.57 (0.53–0.61) | 66 (61–71) | 74 (71–76) | 88 (85–89) | 84 (82–85) |
| Mean difference (95% CI) b | 0.03 (−0.12;0.07) | −6.8 (−11.0; −2.6) | 4.2 (3.3;5.0) | |||
| p-valuec | 0.728 | 0.051 | 0.042 | |||
a
Pesticide use: from three months prior to conception until three years of age
b
Bootstrap estimates for difference of means and variances between ≤ $12 years and > 12 years
c
Bootstrap estimated p-value