Table 2 Hypertension Description by trajectory group
|  | Total N = 1538 | Group 1: Normal N = 767 | Group 2: Low Normal N = 384 | Group 3: High Normal N = 316 | Group 4: Abnormal N = 71 | P value |
|---|---|---|---|---|---|---|
Number of measures | 5 (4–8) | 5 (4–7) | 5 (4–7) | 6 (4–10) | 7 (4–16) | < 0.0001 |
Any hypertension (%) | 337 (22) | 93 (12) | 14 (4) | 161 (51) | 69 (97) | < 0.0001 |
Hypertension type* (%) | ||||||
 Chronic | 42 (13) | 15 (16) | 2 (14) | 23 (14) | 2 (3) | 0.001 |
 Gestational | 284 (84) | 70 (75) | 11 (79) | 136 (85) | 67 (97) |  |
 Unknown | 11 (3) | 8 (9) | 3 (2) | 2 (1) | 0 |  |
Diagnostic Criteria (%) |  |  |  |  |  | < 0.0001 |
 Both SBP ≥140 mmHg and DBP ≥90 mmHg | 40 (12) | 5 (5) | 0 | 12 (7) | 23 (33) |  |
  Only SBP ≥140 mmHg | 133 (39) | 46 (50) | 7 (50) | 66 (41) | 14 (20) |  |
 Only DBP ≥90 mmHg | 164 (49) | 42 (45) | 7 (50) | 83 (52) | 32 (47) |  |
Severity (%) | Â | Â | Â | Â | Â | 0.578 |
 Non-severe (SBP 140–159 or DBP 90-109 mmHg) | 324 (96) | 89 (96) | 13 (93) | 157 (98) | 65 (94) |  |
 Severe (SBP ≥ 160 or DBP ≥110 mmHg) | 253 (4) | 4 (4) | 1 (7) | 4 (2) | 4 (6) |  |